Справочные данные LE - Этикетки Аверьянова Л. В.

FLORA OF VIETNAM
Fabaceae
Kummerowia stipulacea (Maxim.) Makino

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Terrestrial herb or undershrub to 1.5 m tall on open grassy slope. Flowers white, tepals with pinkish nerves. Occasional. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1078 (HN, LE01054652, LE01054653). Det.: Sawi Mattapha 12.05.2018.

FLORA OF VIETNAM
Rubiaceae
Galium sp.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Terrestrial and lithophytic herb on open grassy slope. Not rare. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1077 (HN, LE01054651).

FLORA OF VIETNAM
Hypericaceae
Hypericum dissectum Aver., sp. nov.**

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Terrestrial herb on open grassy slope. Not common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1076 (holotype – LE01054650, isotype – HN). The species may be close to group of species with ciliate sepals including Hypericum himalaicum N. Robson, H. ludlowii N. Robson and H. trigonum Hand.-Mazz., but well differs in stout, erect stems branching in apical part and large ovate sepals deeply dissected into long straight linear-subulate fringes, often bearing black gland at apex.

FLORA OF VIETNAM
Polypodiaceae s.l. Blechnaceae
Woodwardia japonica (L.f.) Sm.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Terrestrial and lithophytic fern on mossy rocky steep slope. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1075 (HN, LE01054648, LE01054649).

FLORA OF VIETNAM
Rosaceae
Spiraea japonica L.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Shrub 1.5–2 m tall among open shrubs on steep rocky slope. Occasional. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1074 (HN, LE01054647).

FLORA OF VIETNAM
Ranunculaceae
Clematis leschenaultiana DC.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Herbaceous vine to 5 m long among open shrubs on steep rocky slope. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1073 (HN, LE01054646).

FLORA OF VIETNAM
Rosaceae
Cotoneaster pannosus Franch.*

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Shrub on rocky slope. Fruits scarlet-red. Occasional. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1072 (HN, LE01054645).

FLORA OF VIETNAM
Caprifoliaceae
Viburnum cylindricum Buch.-Ham. ex D.Don

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Shrub on rocky slope. Fruits dark blue to almost black. Occasional. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1071 (HN, LE01054644).

FLORA OF VIETNAM
Myricaceae
Myrica rubra (Lour.) Siebold & Zucc.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Tree to 15 m tall. Very common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1070 (HN, LE01054643).

FLORA OF VIETNAM
Stachyuraceae
Stachyurus yunnanensis Franch.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Scandent shrub 2–3 m tall on open mossy rocks. Not rare. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1069 (HN, LE01054641, LE01054642).

FLORA OF VIETNAM
Rosaceae
Photinia integrifolia Lindl.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Treelet 3–5 m tall on steep rocky slope. Fruits bright red. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1068 (HN, LE01054640).

FLORA OF VIETNAM
Polypodiaceae s.l. Dryopteridaceae
Polystichum biaristatum (Blume) T. Moore

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Terrestrial and lithophytic fern on open rocky slope. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1067 (HN, LE01054639).

FLORA OF VIETNAM
Rubiaceae
Rubus setchuenensis Bureau & Franch.*

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Scandent shrub 1.5–2 m tall among open secondary shrubs on rocky slope. Fruits black, sweet, delicious. Very common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1066 (HN, LE01054638).

FLORA OF VIETNAM
Gentianaceae
Swertia punicea Hemsl.*

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Terrestrial herb to 0.5 m tall in wet open grassy places. Flowers dark violet. Rare. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1065 (HN, LE01054637).

FLORA OF VIETNAM
Gentianaceae
Swertia angustifolia Buch.-Ham. ex D. Don

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Terrestrial and lithophytic herb to 0.5 m tall in wet open grassy places. Flowers light greenish. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1064 (HN, LE01054634).

FLORA OF VIETNAM
Hydrangeaceae
Hydrangea aspera D. Don

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Shrub 1.5–2 m tall on mossy open rocks. Marginal flowers white. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1063 (HN, LE01054635, LE01054636).

FLORA OF VIETNAM
Polypodiaceae s.l.
Osmunda japonica Thunb.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Terrestrial fern on wet grassy slope. Occasional. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1062 (HN, LE01054615, LE01054668).

FLORA OF VIETNAM
Gentianaceae
Tripterospermum hirticalyx C.Y. Wu ex C.J. Wu

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Herbaceous vine 1–2 m long among open secondary shrubs. Flowers light blue. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1061 (HN, LE01054633).

FLORA OF VIETNAM
Gentianaceae
Swertia bimaculata Hook.f. & Thomson ex C.B. Clarke*

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Erect terrestrial and lithophytic herb to 1.5 m tall in open grassy place. Flowers white with greenish tint. Very common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1060 (HN, LE01054631, LE01054632).

FLORA OF VIETNAM
Verbenaceae
Callicarpa rubella Lindl.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Shrub 2–2.5 m tall among open shrubs. Fruits bright violet. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1059 (HN, LE01054630).

FLORA OF VIETNAM
Dioscoreaceae
Dioscorea subcalva Prain & Burkill

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Herbaceous vine to 6 m long among open shrubs. Fruits pale green. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1058 (HN, LE01054629).

FLORA OF VIETNAM
Rubiaceae
Paederia scandens (Lour.) Merr.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Herbaceous vine to 4 m long among open shrubs. Fruits dull green-brownish. Not rare. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1057 (HN, LE01054627).

FLORA OF VIETNAM
Campanulaceae
Codonopsis javanica (Blume) Hook.f. & Thomson

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Herbaceous vine to 3 m long among open shrubs. Fruits black. Not rare. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1056 (HN, LE01054628).

FLORA OF VIETNAM
Burmanniaceae
Burmannia disticha L.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Terrestrial rosulate herb on wet grassy slope. Flowers light blue-violet. Not rare. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1055 (HN, LE01054625, LE01054626).

FLORA OF VIETNAM
Lauraceae
Litsea cubeba Pers.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Treelet 4-5 m tall on steep rocky slope. Flowers buds dull greenish. Occasional. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1054 (HN, LE01054624).

FLORA OF VIETNAM
Rubiaceae
Neanotis hirsuta (L.f.) W.H. Lewis

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Prostrate herb in open place. Flowers white. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1053 (HN, LE01054623).

FLORA OF VIETNAM
Asteraceae
Crepidiastrum denticulatum (Houtt.) Pak & Kawano

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Lithophytic herb with pendent stem to 1.5 m long on vertical mossy cliff. Flowers yellow. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1052. Det.: A. Sennikov 12.09.2019. (HN, LE01054621, LE01054622).

FLORA OF VIETNAM
Rhamnaceae
Rhamnus hainanensis Merr. & Chun

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Small treelet 2-3 m tall on mossy rocks. Occasional. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1051 (HN, LE01054620).

FLORA OF VIETNAM
Orchidaceae
Coelogyne nitida (Wall. ex D.Don) Lindl.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest. Epiphyte on mossy tree. Not common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1050.3. Herbarium specimen prepared in 24.07.2020, flowers odorless, white, lip with yellow bloches margined with brown line. Averyanov L.

FLORA OF VIETNAM
Orchidaceae
Uncifera acuminata Lindley

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest. Epiphyte on mossy tree. Not common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1050.2 (LE01055643). Herbarium specimen prepared in 10.06.2019, flowers odorless, dull yellowish-green, sepals and petals outside with indistinct dirty-brownish marks. Averyanov L.

FLORA OF VIETNAM
Orchidaceae
Panisea yunnanensis S.C. Chen & Z.H. Tsi

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest. Epiphyte on mossy tree. Not common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1050.1. Herbarium specimen prepared in 26.11.2019, flowers odorless, pure white. Averyanov L (HN, LE01061400, LE01066671).

FLORA OF VIETNAM
Orchidaceae
Bletilla ochracea Schltr.?

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Terrestrial herb in open grassy place. Not common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1050 (HN, LE01061367 – photo).

FLORA OF VIETNAM
Orchidaceae
Spathoglottis pubescens Lindl.

Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°05ʹ13.5ʺN 104°48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Terrestrial tuberiferous herb in open grassy place. Flowers yellow. Not common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1049 (HN, LE01048909).

FLORA OF VIETNAM
Balsaminaceae
Impatiens tomentella Hook.f.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial herb in wet open rocky place along stream. Flowers pale yellow. Not common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1048. Det.: Sheng Xiang Yu & K.S. Nguyen 14.10.2019. (HN, LE01049163).

FLORA OF VIETNAM
Balsaminaceae
Impatiens aquatilis Hook.f.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial herb in wet open grassy place along stream. Flowers purple. Locally very common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1047 (HN, LE01049118). Det.: Sheng Xiang Yu & K.S. Nguyen 14.10.2019.

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

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Creeping epiphytic vine on mossy big tree along river. Flowers brownish. Occasional. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1046 (HN, LE01050481).

FLORA OF VIETNAM
Parnassiaceae*
Parnassia wightiana Wall.*

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic herb in wet grassy places along river and on mossy open wet stream rocks. Flowers white, fruits green, later brown. Locally very common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1045 (HN, LE01048857, LE01049038, LE01049078).

FLORA OF VIETNAM
Lamiaceae
Prunella vulgaris L.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial herb on open grassy place along river. Flowers violet. Locally very common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1044 (HN, LE01049202).

FLORA OF VIETNAM
Commelinaceae
Streptolirion volubile Edgew.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Herbaceous vine 1-2 m long among open shrubs along stream. Flowers white. Not common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1043 (HN, LE01049162).

FLORA OF VIETNAM
Urticaceae
Pilea sp.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Prostrate herb among wet open river rocks. Not common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1042 (HN, LE01049117).

FLORA OF VIETNAM
Elaeagnaceae
Elaeagnus difficilis Serv.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Scandent shrub or woody vine to 10 m long on open shrubs along river. Flowers pale light yellow. Not common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1041 (HN, LE01049037, LE01049077).

FLORA OF VIETNAM
Rosaceae
Neillia thyrsiflora D. Don

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Scandent shrub 1–1.5 m tall in open place along stream. Flowers white. Common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1040 (HN, LE01049201).

FLORA OF VIETNAM
Cucurbitaceae
Thladiantha angustisepala W.J. de Wilde & Duyfjes

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Small herbaceous vine in open wet place along stream. Flowers yellow. Occasional. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1039 (HN, LE01049161).

FLORA OF VIETNAM
Urticaceae
Lecanthus peduncularis (Royle) Weddell

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic herb on mossy wet slope. Inflorescences and flowers pale pinkish. Common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1038 (HN, LE01049072).

FLORA OF VIETNAM
Ranunculaceae
Anemone rivularis Buch.-Ham. ex DC.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic herb on mossy wet slope. Flowers white. Common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1037 (HN, LE01049032).

FLORA OF VIETNAM
Hydrangeaceae
Dichroa febrifuga Lour.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Shrub 3 m tall on open wet rocks stream slope. Not rare. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1036 (HN, LE01049116).

FLORA OF VIETNAM
Cyperaceae
Carex sp. 1

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Lithophytic sedge on open wet mossy river rocks. Very common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1035 (HN, LE01049106, LE01049119).

FLORA OF VIETNAM
Orchidaceae
Liparis chapaensis Gagnep.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Lithophytic herb on wet mossy stream rocks. Flowers olive-brownish. Occasional. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1034 (HN, LE01050485).

FLORA OF VIETNAM
Rosaceae
Agrimonia pilosa Ledeb.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial herb on open grassy place along trail. Flowers yellow. Very common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1033 (HN, LE01049079). Det.: N.T. Hiep 05.12.2019.

FLORA OF VIETNAM
Gesneriaceae
Aeschynanthus superbus C.B. Clarke

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ00.4ʺN 104°52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Epiphytic undershrub with pendulous shoots to 2 m long. Flowers red with darker nerves. Not common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1032 (HN, LE01049039).