Гербарий БИН РАН - Образцы

Gesneriaceae

Ornithoboea wildeana Craib

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Lithophytic herb to 1 m tall on steep rocky slope. Very common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1584.

Orchidaceae

Malaxis ophrydis (J. Koenig) Ormerod

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Terrestrial herb in shady place among rocks. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1585.

Orchidaceae

Phaius mishmensis Rchb.f.,

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Terrestrial herb in shady place among rocks. Flowers pinkish. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1586.

Polypodiaceae s.l.

Asplenium unilaterale Lam.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Terrestrial and occasionally lithophytic fern on shady very steep rocky slope. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1587.

Myrsinaceae

Ardisia sp.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Treelet 2-3 m tall on shady very steep rocky slope. Fruits glossy green speckled with small whitish spots. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1588.

Gesneriaceae

Hemiboea malipoensis Y.H. Tan

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Terrestrial herb to 1.5 m tall on shady very steep rocky slope. Flowers yellow. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1589.

Rubiaceae

Ophiorrhiza sp.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Terrestrial herb to 1.5 m tall on shady very steep rocky slope. Flowers white with greenish apex. Very common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1590.

Fagaceae

Castanopsis sp.?

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Tree to 12-15 m tall, bars brown. Very common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1591.

Vitaceae

Cayratia corniculata Gagnep.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566ºN 105.02142ºE. Very steep mountain slopes composed of solid highly eroded karstic limestone at elevation 800–1000 m a.s.l. Remnants of primary evergreen broad-leaved and coniferous (with Calocedrus rupestris and Xanthocyparis vietnamensis) humid forest. Herbaceous or semiwoody vine to 4 m long in open rocky place. Fruits white. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1592.

Convallariaceae

Disporopsis longifolia Craib

Ha Giang Prov., Quan Ba Distr., Quan Ba Village street market. Wild collected terrestrial herb to 2 m tall sold as a medicinal plant. Rhizome to 8 cm in diam, fruits glossy green. 13 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1593.

Burseraceae

Canarium album Blanco?

Ha Giang Prov., Quan Ba Distr., Thai An Commune, Seo Lung Two Village, around point 22.96988ºN 105.08646ºE. Very steep mountain slopes composed of stratified shale and clayey subsoil at elevation 800–1000 m a.s.l. Primary and secondary evergreen broad-leaved humid forest. Tree to 30 m tall on steep slope. Not rare. 10 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1598 (photo only).

Orchidaceae

Paphiopedilum henryanum Braem

Ha Giang Prov., Quan Ba Distr., Quan Ba Village street market. Wild collected lithophytic rosulate sold as an ornamental plant. Median tepal yellowish with maroon spots, lip punk-purple. Almost extinct in the nature in the area. 13 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1594.

Polypodiaceae s.l. (Athyriaceae)

Diplazium opacum (Don) Christ

Ha Giang Prov., Quan Ba Distr., Thai An Commune, Seo Lung Two Village, around point 22.96988ºN 105.08646ºE. Very steep mountain slopes composed of stratified shale and clayey subsoil at elevation 800–1000 m a.s.l. Primary and secondary evergreen broad-leaved humid forest. Terrestrial fern on very steep wet shady slope. Fronds to 2 m long. Very common. 10 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1500.

Verbenaceae

Clerodendrum kwangtungense Hand.-Mazz.

Ha Giang Prov., Quan Ba Distr., Thai An Commune, Seo Lung Two Village, around point 22.96988ºN 105.08646ºE. Very steep mountain slopes composed of stratified shale and clayey subsoil at elevation 800–1000 m a.s.l. Primary and secondary evergreen broad-leaved humid forest. Treelet or shrub 3-4 m tall. Calyx pink, fruits black. Occasional. 10 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1498. Det.: Chen Yaping 08.12.2019

Urticaceae

Elatostema radicans Wedd.

Ha Giang Prov., Quan Ba Distr., Thai An Commune, Seo Lung Two Village, around point 22.96988ºN 105.08646ºE. Very steep mountain slopes composed of stratified shale and clayey subsoil at elevation 800–1000 m a.s.l. Primary and secondary evergreen broad-leaved humid forest. Terrestrial herb on very steep wet shady slope. Flowers dirty violet. Occasional. 10 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1497. Det.: Fu Longfei 09.12.2019

Betulaceae

Betula alnoides Buch.-Ham.

Ha Giang Prov., Quan Ba Distr., Thai An Commune, Seo Lung Two Village, around point 22.96988ºN 105.08646ºE. Very steep mountain slopes composed of stratified shale and clayey subsoil at elevation 800–1000 m a.s.l. Primary and secondary evergreen broad-leaved humid forest. Semideciduous tree to 30 m tall. Very common. Co-dominant (or occasional mono-dominant) of the forest. 10 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1496.

Eriocaulaceae

Eriocaulon nigrum Lecomte?

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. Secondary evergreen broad-leaved humid forest. Terrestrial herb in open grassy place at the base of mountain. Inflorescences white. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1495b.

Eriocaulaceae

Eriocaulon duthiei Hook.f.?

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. Secondary evergreen broad-leaved humid forest. Terrestrial herb in open grassy place at the base of mountain. Inflorescences white. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1495a.

Parnassiaceae

Parnassia wightiana Wall.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. Secondary evergreen broad-leaved humid forest along rocky stream. Terrestrial and lithophytic herb on open wet mossy stream rocks. Flowers white. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1494.

Balsaminaceae

Impatiens sp.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Terrestrial herb to 1 m tall in open rocky place. Flowers orange. Not common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1493.

Pittosporaceae

Pittosporum glabratum Lindl.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Shrub 2 m tall in open rocky place. Fruits dull yellowish, seeds red. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1492.

Caprifoliaceae

Viburnum sp.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Tree 5-7 m tall and 5-7 cm in diameter with very hard timber locally used for handicrafts. Very common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1491.

Cornaceae

Cornus sp.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Tree to 15 m tall and 20 cm in diam. Timber very hard with black nuclear timber. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1490.

Rubiaceae

Psychotria sp.?

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Shrub 2-3 m tall in open rocky place. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1489.

Violaceae

Viola annamensis Baker f.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Terrestrial herb in open rocky place. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1488.

Begoniaceae

Begonia rhytidophylla Y.M. Shui & W.H. Chen

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Lithophytic rosulate herb on vertical cliffs. Leaves dark purple on both sides. Locally common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1487. Det.: Yu-Min Shui 20.12.2019

Gesneriaceae

Chirita sp.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Lithophytic rosulate herb on vertical cliffs. Locally common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1486.

Gesneriaceae

Aeschynanthus superbus C.B. Clarke

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphytic scandent undershrub on old mossy tree. Fruits green. Occasional. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1485.

Melastomataceae

Medinilla petelotii Merr.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphytic scandent undershrub on old mossy tree. Flowers pink to pink-purple. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1484.

Gesneriaceae

Hemiboea ovalifolia (W.T. Wang) A. Weber & Mich. Möller

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Terrestrial herb among mossy rocks. Leaves dark green, pale green below. Very common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1483.

Rosaceae

Eriobotrya elliptica Lindl.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Tree to 20 m tall and to 20 cm in diameter. Flowers pure white, very fragrant. Very common. Timber of good quality. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1482.

Rubiaceae

Aidia sp.?

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Shrub about 3 m tall in open place. Fruits dark green. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1481.

Convallariaceae

Disporopsis longifolia Craib

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Terrestrial and lithophytic creeping herb. Petiole with dirty purple punctuation. Not common. Widely collected as medicinal plant. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1480.

Fabaceae

Ormosia sp.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Shrub or small tree 5-7 m tall and 7 cm in diameter. Timber is very hard. Common, but widely logged for the timber sale (very expensive). 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1479. Det.: Sawai Mattapha 29.11.2019

Fabaceae

Padbruggea dasyphylla Miq. ( = Callerya dasyphylla (Miq.) Schot)

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Woody vine to 15 m long and 7 cm in diameter, timber and bark with red juice. Fruits velvety hairy, yellow-greenish. Locally used as medicinal plant (with alcohol). Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1478. Det.: Sawai Mattapha 29.11.2019

Rubiaceae

Ophiorrhiza sp.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Terrestrial herb to 1.5 m tall in open place. Flowers white. Very common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1477.

Orchidaceae

Oberonia acaulis Griff.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphyte on old mossy tree in shady place. Flowers orange-brown. Not common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1476.

Orchidaceae

Cheirostylis serpens Aver.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphyte on old mossy tree in shady place. Flowers white, lip with green spot at center. Very rare.

9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1475. LE01066651

Orchidaceae

Nephelaphyllum tenuiflorum Blume

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Creeping terrestrial herb in shady place. Leaves dark green with dull violet spots, dull violet below. Not common. Rare. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1474.

Orchidaceae

Bulbophyllum retusiusculum Rchb.f.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphyte on old mossy tree. Flowers yellow. Rare.

9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1473.

Orchidaceae

Pholidota missionariorum Gagnep.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphyte on old mossy tree. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1472.

Orchidaceae

Anoectochilus roxburghii (Wall.) Lindl.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Creeping terrestrial herb in shady place. Leaves dark velvety brown-green with pink or yellow nerve. Not common. Widely collected for sale as a medicinal plant. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1471.

Orchidaceae

Bulbophyllum macraei Rchb.f.?

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Creeping epiphyte on old mossy trees. Not common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1470.

FLORA OF VIETNAM

Orchidaceae

Bulbophyllum longibrachiatum Z.H. Tsi

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphyte on old mossy trees and lithophyte on mossy rocks. Flowers pale orange-brown. Not rare. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1468.

Orchidaceae

Bulbophyllum andersonii (Hook.f.) J.J. Sm.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphyte on old mossy trees and lithophyte on mossy rocks. Flowers pale yellowish heavy speckled with pink-purple. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1469.

Orchidaceae

Bulbophyllum longibrachiatum Z.H. Tsi

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphyte on old mossy trees and lithophyte on mossy rocks. Flowers pale orange-brown. Not rare. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1468.

Orchidaceae

Coelogyne fimbriata Lindl.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphyte on old mossy trees and lithophyte on mossy rocks. Flowers pale yellowish, lip with brown center. Very common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1467.

Orchidaceae

Dendrobium chittimae Seidenf.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphyte on old mossy tree in shady mossy place. Rare. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1466.

Orchidaceae

Dendrobium hercoglossum Rchb.f.?

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphyte on old mossy tree in shady mossy place. Occasional. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1465.

Orchidaceae

Dendrobium chrysanthum Wall.

Ha Giang Prov., Quan Ba Distr., Ta Van Commune, Can Ho Village, around point 23.03513ºN 104.87016ºE, steep rocky mountain slopes composed of eroded limestone at elevation 1100–1250 m a.s.l. near mountain top. Secondary evergreen broad-leaved humid forest. Epiphyte on old mossy tree in shady mossy place. Common. 9 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1464b.