Справочные данные LE - Этикетки Аверьянова Л. В.

FLORA OF VIETNAM
Zingiberaceae
Alpinia sp. 2

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb 1-1.5 m tall on shady rocks. Flowers buds white. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 696 (HN, LE01049621).

FLORA OF VIETNAM
Melastomataceae
Phyllagathis sp. 1

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial undershrub to 2 m tall on shady rocks. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 695 (HN, LE01049697).

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

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial fern on shady flattened place. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 694 (HN, LE01049657).

FLORA OF VIETNAM
Orchidaceae
Bulbophyllum retusiusculum Rchb.f.?

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Epiphyte on mossy tree. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 693 (HN, LE01054191).

FLORA OF VIETNAM
Araceae
Arisaema victoriae V.D. Nguyen

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb to 0.6 m tall among shady rocks. Scape and petiole white – brown tessellated, spathe light green, center white. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 692 (HN, LE01049617).

FLORA OF VIETNAM
Gesneriaceae
Paraboea sp. 1

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Lithophytic herb on very steep mossy rocky slope. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 691 (HN, LE01049692).

FLORA OF VIETNAM
Menispermaceae
Tinospora sagittata (Oliv.) Gagnep.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Semiwoody vine 3-5 m long I n open rocky place. Medicinal plant. Not common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 690 (HN, LE01049652).

FLORA OF VIETNAM
Gesneriaceae
Lysionotus sp. 3

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic herb 1 m tall on rocky slope. Occasional. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 689 (HN, LE01049612).

FLORA OF VIETNAM
Orchidaceae
Cyrtosia faberi (Rolfe) Aver.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Achlorophyllous herb with erect dull reddish-pink stem to 3 m tall in open flattened place. Flowers yellow, lop on sides with red spots. Occasional. April – May 2017, Nguyen Sinh Khang, VR 688a (HN, LE01061313).

FLORA OF VIETNAM
Orchidaceae
Cyrtosia faberi (Rolfe) Aver.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Achlorophyllous herb with erect dull reddish-pink stem to 3 m tall in open flattened place. Flowers buds yellowish. Occasional. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 688 (HN, LE01054189, LE01054190).

FLORA OF VIETNAM
Orchidaceae
Epigeneium chapaense Gagnep.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Creeping epiphyte on tall mossy tree. Very common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 687 (HN, LE01054188).

FLORA OF VIETNAM
Orchidaceae
Liparis superposita Ormerod

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Creeping lithophytic herb on mossy rocks. Locally abundant. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 686 (HN, LE01054187).

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

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Epiphytic fern on mossy tree. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 685 (HN, LE01049691).

FLORA OF VIETNAM
Rubiaceae
Spiradiclis leptobotrya Pit.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Lithophytic herb to 1 m tall on mossy wet cliff. Flowers light lilac. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 684 (HN, LE01049651).

FLORA OF VIETNAM
Polypodiaceae s.l. Dryopteridaceae
Cyrtomium hemionitis Christ

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Lithophytic fern on mossy shady cliff. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 683 (HN, LE01049696).

FLORA OF VIETNAM
Orchidaceae
Liparis superposita Ormerod

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Creeping lithophytic herb on mossy exposed rocks. Locally very common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 682 (HN, LE01054186).

FLORA OF VIETNAM
Polypodiaceae s.str.
Neolepisorus ovatus (C.Presl) Ching

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Creeping lithophytic fern on mossy exposed rocks. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 681 (HN, LE01049656).

FLORA OF VIETNAM
Celastraceae
Celastrus paniculatus Willd.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Shrub? Fruits dull green. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 680 (HN, LE01049611).

FLORA OF VIETNAM
Cyperaceae
Carex blini H. Lev. et Vanoit.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial sedge in open grassy wet place along small stream. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 679 (HN, LE01049695).

FLORA OF VIETNAM
Balsaminaceae
Impatiens pulchella N.S. Khang, S.X.Yu & Aver., sp. nov.**

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb to 1 m tall in open grassy wet place along small stream. Flowers purple. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 678 (holotype – LE01049655, isotype – HN).
New species may be close to Impatiens rubro-striata Hook.f. from which differs in tepals adaxially white with few small purple spots, adaxially bright purple (vs. tepals adaxially and abaxially white with many purple veins) and leaves with prominent teeth between crenulae (vs. leaf margin crenulate but with no teeth between crenulae).

FLORA OF VIETNAM
Podocarpaceae
Podocarpus annamiensis N.E. Gray

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree to 15 m tall on rocky slope. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 677 (HN, LE01049615).

FLORA OF VIETNAM
Araceae
Arisaema victoriae V.D. Nguyen

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb to 0.8 m tall on rocky slope. Spathe light green with white center. Scape and petiole brown-white tessellated. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 676 (HN, LE01049690).

FLORA OF VIETNAM
Zingiberaceae
Alpinia sp. 6

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb to 1.5 m tall on rocky slope. Flower buds pinkish. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 675 (HN, LE01049650).

FLORA OF VIETNAM
Orchidaceae
Bulbophyllum reptans (Lindl.) Wall.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Creeping epiphyte on tall mossy trees. Very common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 674 (HN, LE01054185).

FLORA OF VIETNAM
Convallariaceae
Peliosanthes sp.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb on shady rocky slope. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 673 (HN, LE01049610).

FLORA OF VIETNAM
Icacinaceae
Gomphandra tetrandra (Wall.) Sleumer

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Shrub 3-4 m tall in open place. Flower buds greenish. Not common, 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 672 (HN, LE01049616).

FLORA OF VIETNAM
Melastomataceae
Medinilla petelotii Merr.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Creeping woody vine to 5 m long. Fruits purple. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 671 (HN, LE01049694).

FLORA OF VIETNAM
Myrsinaceae
Ardisia sp. 1

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Small treelet on rocky slope. Fruits bright red. Not common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 670 (HN, LE01049654).

FLORA OF VIETNAM
Convallariaceae
Ophiopogon peliosanthoides F.T. Wang & Tang

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb on rocky slope. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 669 (HN, LE01049614).

FLORA OF VIETNAM
Fagaceae
Lithocarpus sp.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree to 25 m tall. Common, forest co-dominant. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 668 (HN, LE01049689).

FLORA OF VIETNAM
Magnoliaceae
Michelia glaucophylla (Sima & Hong Yu) Sima & S.G. Lu

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Sapling of big tree to 25 m tall. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 667 (HN, LE01049649).

FLORA OF VIETNAM
Rubiaceae
Spiradiclis leptobotrya Pit.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Lithophytic herb to 1 m tall on mossy cliff. Flowers light lilac. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 666 (HN, LE01049609).

FLORA OF VIETNAM
Lycopodiaceae
Phlegmariurus hamiltonii (Spreng.) Á.Löve & D.Löve

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Epiphyte on tall mossy trees. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 665 (HN, LE01049693).

FLORA OF VIETNAM
Orchidaceae
Calanthe lyroglossa Rchb.f.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree to 25 m tall. Not rare, forest co-dominant. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 664 (HN, LE01054184).

FLORA OF VIETNAM
Magnoliaceae
Michelia glaucophylla (Sima & Hong Yu) Sima & S.G. Lu

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree to 25 m tall. Not rare, forest co-dominant. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 663 (HN, LE01049653).

FLORA OF VIETNAM
Convallariaceae
Ophiopogon chingii F.T. Wang & Tang

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb to 0.5 m tall on shady rocky slope. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 662 (HN, LE01049613).

FLORA OF VIETNAM
Convallariaceae
Peliosanthes macrostegia Hance

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb on shady rocky slope. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 661 (HN, LE01049684).

FLORA OF VIETNAM
Rubiaceae
Spiradiclis sp. 5

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb to 1 m tall on rocky slope. Not common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 660 (HN, LE01049644).

FLORA OF VIETNAM
Primulaceae
Lysimachia insignis Hemsl.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb to 1 m tall on rocky slope. Flowers yellow. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 659 (HN, LE01049604).

FLORA OF VIETNAM
Podophyllaceae
Dysosma versipellis (Hance) M. Cheng

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb to 1 m tall in open wet place. Flowers dark brown-violet. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 658 (HN, LE01049648, LE01049688).

FLORA OF VIETNAM
Piperaceae
Piper filiferum Aver.**, sp.nov.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Epiphytic and lithophytic undershrub with pendulous stems to 1 m long on shady cliff. Inflorescences white. Occasional. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 657 (holotype –LE01049608, isotype – HN). The species differs from all its congeners occurring in mainland Asia in long ciliate female inflorescence.

FLORA OF VIETNAM
Violaceae
Viola petelotii W. Becker ex Gagnep.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic herb on steep rocky slope. Not common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 656 (HN, LE01049683).

FLORA OF VIETNAM
Rubiaceae
Spiradiclis leptobotrya Pit.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic herb 0.5 m tall on steep rocky slope. Flowers light lilac. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 655 (HN, LE01049643).

FLORA OF VIETNAM
Rubiaceae
Spiradiclis leptobotrya Pit.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic herb 0.5 m tall on steep rocky slope. Flowers light lilac. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 654 (HN, LE01049603).

FLORA OF VIETNAM
Convallariaceae
Ophiopogon peliosanthoides F.T. Wang & Tang

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb on shady rocky slope. Not rare. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 653 (HN, LE01049687).

FLORA OF VIETNAM
Orchidaceae
Cephalantheropsis obcordata (Lindl.) Ormerod

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb on wet shady rocky slope. Not common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 652 (HN, LE01054183).

FLORA OF VIETNAM
Urticaceae
Pilea dolichocarpa C.J. Chen

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb to 1.5 m tall on shady rocky slope. Flowers greenish. Common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 651 (HN, LE01049647).

FLORA OF VIETNAM
Convallariaceae
Disporum cantoniense (Lour.) Merr.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb to 1 m tall on shady rocky slope. Flowers dirty violet. Not common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 650 (HN, LE01061434, LE01067176).

FLORA OF VIETNAM
Aristolochiaceae
Asarum caudigerum Hance

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb on shady rocky slope. Flowers greenish. Very common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 649 (HN, LE01049682).

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

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23°03ʹ41.5ʺN 104°50ʹ41.6ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1400 m a.s.l. Primary evergreen broad-leaved very humid forest. Epiphyte on mossy tree. Very common. 22 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 648 (HN, LE01049642).