Справочные данные LE - Этикетки Аверьянова Л. В.

FLORA OF VIETNAM
Orchidaceae
Calanthe davidii Franch.?

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Terrestrial and lithophyte on very steep shady rocky slope on rocky mountain top. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 306 (HN, LE01058166, LE01066703).

FLORA OF VIETNAM
Orchidaceae
Eria rhomboidalis Tang & F.T. Wang

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Creeping lithophyte on very steep rocky slope on rocky mountain top. Flowers pinkish. Very common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 305 (HN, LE01054264).

FLORA OF VIETNAM
Orchidaceae
Dendrobium chittimae Seidenf.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Lithophyte on very steep rocky slope on rocky mountain top. Flowers white, very fragrant. Occasional. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 304 (HN, LE01048913, LE01054262, LE01054263).

FLORA OF VIETNAM
Orchidaceae
Coelogyne malipoensis Z.H. Tsi

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Clustering lithophyte in shady place on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 303 (HN, LE01058165, LE01066702).

FLORA OF VIETNAM
Orchidaceae
Epigeneium chapaense Gagnep.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Creeping epiphyte on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 302 (HN, LE01054261).

FLORA OF VIETNAM
Orchidaceae
Paphiopedilum micranthum Tang & F.T. Wang

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Terrestrial and lithophytic rosulate herb on shady place near mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 301 (HN, LE01054259, LE01054260).

FLORA OF VIETNAM
Orchidaceae
Schoenorchis gemmata (Lindl.) J.J. Sm.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Clustering epiphyte on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 300 (HN, LE01054258).

FLORA OF VIETNAM
Orchidaceae
Pholidota chinensis Lindl.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Clustering epiphyte on rocky mountain top. Flowers white. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 299 (HN, LE01054136, LE01054137).

FLORA OF VIETNAM
Orchidaceae
Otochilus fusca Lindl.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Clustering epiphyte on rocky mountain top. Not rare. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 298 (HN, LE01054135).

FLORA OF VIETNAM
Orchidaceae
Eria pannea Lindl.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Creeping epiphyte on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 297 (HN, LE01054134).

FLORA OF VIETNAM
Orchidaceae
Cymbidium lancifolium Hook.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Terrestrial and lithophytic herb on rocky mountain top. Occasional. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 296 (HN, LE01054132, LE01054133).

FLORA OF VIETNAM
Orchidaceae
Renanthera citrina Aver.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Small semi-woody vine on rocky mountain top. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 295 (HN, LE01058164).

FLORA OF VIETNAM
Orchidaceae
Liparis stricklandiana Rchb.f.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Clustering lithophyte and epiphyte on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 294 (HN, LE01054130, LE01054131).

FLORA OF VIETNAM
Orchidaceae
Pholidota roseans Schltr.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Clustering lithophyte and epiphyte on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 293 (HN, LE01058163, LE01066701).

FLORA OF VIETNAM
Orchidaceae
Epigeneium amplum (Lindl.) Summerh.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Creeping lithophyte and epiphyte on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 292 (HN, LE01054129).

FLORA OF VIETNAM
Orchidaceae
Liparis mannii Rchb.f.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Clustering lithophyte and epiphyte on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 291 (HN, LE01058162, LE01066699).

FLORA OF VIETNAM
Orchidaceae
Monomeria barbata Lindl.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Creeping lithophyte and epiphyte on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 290 (HN, LE01054127, LE01054128).

FLORA OF VIETNAM
Polypodiaceae s.l. Aspleniaceae
Asplenium tenuifolium D. Don

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Lithophyte on mossy rocks on rocky mountain top. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 289 (HN, LE01058161, LE01067278).

FLORA OF VIETNAM
Polypodiaceae s.str.
Prosaptia khasyana (Hook.) C.Chr. & Tard.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Epiphyte on mossy trees on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 288 (HN, LE01054357).

FLORA OF VIETNAM
Euphorbiaceae (Phyllanthaceae)
Leptopus clarkei (Hook.f.) Pojark.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Scandent undershrub with stems to 2 m long on rocky mountain top. Flowers greenish with pink tint. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 287 (HN, LE01050401).

FLORA OF VIETNAM
Polypodiaceae s.l. Lomariopsidaceae
Nephrolepis auriculata (L.) Trimen

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Lithophytic fern of exposed mossy rocks on rocky mountain top. Very common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 286 (HN, LE01054355, LE01054356).

FLORA OF VIETNAM
Zingiberaceae
Alpinia sp. 2

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Terrestrial herb about 1-5 tall on slope. Flowers reddish. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 285 (HN, LE01058160, LE01067283).

FLORA OF VIETNAM
Magnoliaceae
Michelia fulva Hung T. Chang & B.L. Chen

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Treelet about 5 m tall on rocky mountain top. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 284 (HN, LE01054354).

FLORA OF VIETNAM
Cornaceae
Schoepfia jasminodora Siebold & Zucc.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Treelet or shrub 4-5 m tall on rocky mountain top. Fruits bright red. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 283 (HN, LE01054353).

FLORA OF VIETNAM
Smilacaceae
Smilax cocculoides Warb. ex Diels

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Scandent shrub 2 m tall on slopes and on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 282 (HN, LE01054352).

FLORA OF VIETNAM
Rubiaceae
Morinda officinalis F.C. How

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Woody vine 3-4 m long on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 281 (medicine plant). (HN, LE01054351).

FLORA OF VIETNAM
Betulaceae
Carpinus pubescens Burkill

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Deciduous tree to 15 (20) m tall on slopes and on rocky mountain top. Flowers yellow. Very common. Co-dominant of the broad-leaved forest. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 280 (01054349, 01054350).

FLORA OF VIETNAM
Convallariaceae
Polygonatum mengtzense F.T. Wang & Tang

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Terrestrial and lithophyte herb in open mossy place on rocky mountain top. Flowers white to greenish. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 279 (HN, LE01054348).

FLORA OF VIETNAM
Polypodiaceae s.l.
Davallia solida (G. Forst.) Sw.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Creeping epiphyte and occasionally lithophyte on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 278 (HN, LE01054346, LE01054347).

FLORA OF VIETNAM
Convallariaceae
Ophiopogon tonkinensis L. Rodr.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Terrestrial and lithophytic herb on rocky mountain top. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 277 (HN, LE01054345).

FLORA OF VIETNAM
Ericaceae
Vaccinium empetrum Aver. & K.S. Nguyen, sp. nov.**

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Small dwarf creeping epiphyte undershrub on mossy trees or occasionally lithophyte on rocky mountain top. Very common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 276 (holotype – LE01054344, isotype – HN). The species has rather isolated taxonomical position among its Asian congeners. Formally it may be compared with other microphyllous Vaccinium speces like V. chaetothrix Sleumer, V. moupinense Franchet, V. nummularia Hook.f. & Thomson ex C.B.Clarke, and V. sikangense Y. C. Yang. However, our palnt strickingly differs in minute narrowly ovate to broadly lanceolate spirally arranged leaves and long creping plagiotropic stems with rather short ascending branches. Flowers commonly solitary, corolla broadly ovoid to almost globular, white. Species name refers certain resemblance shoots of our plant and leafy stems of Empetrum nigrum L.

FLORA OF VIETNAM
Ericaceae
Rhododendron sp. 1

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Shrub about 3 m tall on rocky mountain top. Young leaves pink. Flowers yellow. Very common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 275 (HN, LE01054343).

FLORA OF VIETNAM
Dioscoreaceae
Dioscorea arachidna Prain & Burkill

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Semi-woody vine about 5 m long in open place near the village. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 274 (HN, LE01054342).

FLORA OF VIETNAM
Magnoliaceae
Michelia coriacea Hung T. Chang & B.L. Chen

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Tree 5-8 m tall on mountain slope. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 273 (HN, LE01054341).

FLORA OF VIETNAM
Asclepiadaceae
Periploca purpurea Kerr

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Woody vine 3-5 m long on rocky mountain top. Flowers purple-violet. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 272 (HN, LE01054339, LE01054340). Det.: M. Rodda 11.10.2019.

FLORA OF VIETNAM
Schizandraceae
Kadsura coccinea (HN, LEm.) A.C. Sm.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Woody vine 3-4 m long on rocky mountain top. Flowers dull yellow, center red. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 271 (HN, LE01054338).

FLORA OF VIETNAM
Pinaceae
Pinus wangii Hu & W.C. Cheng

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Tree about 8 m tall on rocky mountain top. Very rare (2 trees seen). 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 270 (HN, LE01054337).

FLORA OF VIETNAM
Viscaceae
Viscum articulatum Burm. f.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Parasitic shrub in canopies of tall trees on rocky mountain top. Not common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 269 (HN, LE01054335, LE26801054336).

FLORA OF VIETNAM
Illiciaceae
Illicium difengpi K.I.B. & K.I.M.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Treelet about 3 m tall on rocky mountain top. Flower buds pink-purple. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 268 (HN, LE01054334).

FLORA OF VIETNAM
Cupressaceae
Xanthocyparis vietnamensis Farjon & T.H. Nguyen

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Tree about 10 m tall, 25 cm DBH on rocky mountain top. Rare (5 trees seen). 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 267 (HN, LE01054331, LE01054332, LE01054333, LE01054405).

FLORA OF VIETNAM
Anacardiaceae
Pistacia weinmanniifolia Franch.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Evergreen tree about 5 m tall on rocky mountain top. Very common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 266 (HN, LE01054404).

FLORA OF VIETNAM
Hamamelidaceae
Loropetalum flavum Averyanov, P.K. Endress & K.S. Nguyen**

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Evergreen tree 5-10 m tall on rocky mountain top. Flowers pale yellow. Very common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 265 (holotype – LE01042163, isotypes – HN, LE01042164, LE01042165, LE01042166, LE01042175).

FLORA OF VIETNAM
Oleaceae
Fraxinus griffithii C.B.Clarke

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Tree to 10 m tall on rocky mountain top. Very common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 264 (HN, LE01054402, LE01054403).

FLORA OF VIETNAM
Oleaceae
Ligustrum delavayanum Har.*?

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Shrub 1.5-2 m tall on rocky mountain top. Flowers white. Very common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 263 (HN, LE01054401).

FLORA OF VIETNAM
Podocarpaceae
Podocarpus annamiensis N.E. Gray

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Treelet 2-5 m tall in shady place. Very common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 262 (HN, LE01054399, LE01054400).

FLORA OF VIETNAM
Polygalaceae
Polygala wattersii Hance

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Shrub 1-2 m tall in open place. Flowers yellowish with punk at tepal apex. Very common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 261 (HN, LE01054396, LE01054397, LE01054398).

FLORA OF VIETNAM
Myrsinaceae
Ardisia phankelociana C.M. Hu & G. Hao

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Shrub 1.5-2 m tall in shady place. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 260 (HN, LE01054395).

FLORA OF VIETNAM
Clusiaceae
Garcinia paucinervis Chun & F.C.How

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Tree to 10 m tall. Flowers yellow, fragrant. Very common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 259 (HN, LE01058159, LE01067281).

FLORA OF VIETNAM
Acanthaceae
Ruellia tuberosa L.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Creeping terrestrial herb on rocky mountain top. Flowers bright violet. Very common on mountain top. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 258 (HN, LE01058158, LE01067282).

FLORA OF VIETNAM
Ericaceae
Rhododendron yunnanense Franch.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Treelet or shrub 2-3 m tall on rocky mountain top. Flowers pink-purple, median petal with small purple marks. Occasional. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 257 (HN, LE01054394).