Гербарий БИН РАН - Образцы

Gesneriaceae

Aeschynanthus chiritoides C.B. Clarke

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Creeping epiphyte on old mossy tree. Common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1280.

Polypodiaceae s.l.

Leptochilus ellipticus (Thunb.) Noot.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Creeping epiphyte on old mossy tree. Occasional. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1279.

Balsaminaceae

Impatiens malipoensis S.H. Huang

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect terrestrial herb to 1 m tall among mossy rocks. Flowers white. Inside tupe with yellowish spot. Occasional. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1277.

Balsaminaceae

Impatiens sp.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect terrestrial herb to 1 m tall among mossy rocks. Flowers bright yellow. Occasional. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1276.

Asteraceae

Sinosenecio oldhamianus (Maxim.) B. Nord.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect terrestrial herb to 1.2 m tall among mossy open rocks on steep slope. Flowers bright yellow. Rare. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1275. Det.: I. Illarionova 17.10.2019

Begoniaceae

Begonia edulis H. Lév.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Terrestrial and lithophytic rhizomatous herb on steep rocky slope. Leaves and petiole uniform green, with greenish to purple hairs. Not rare. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1274. Det.: Yu-Min Shui 20.12.2019

Melastomataceae

Sarcopyramis nepalensis Wall.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Terrestrial herb on steep rocky slope. Flowers pink-purple, anthers yellow. Not common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1273.

Ericaceae

Vaccinium tonkinense Dop

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Creeping epiphyte on old mossy tree. Not common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1272.

Gesneriaceae

Slackia tonkinensis Pellegr.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Prostrate rosulate herb on steep rocky slope. Leaves dark green, sometimes with large irregular white spots. Flowers blue. Not common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1271.

Gesneriaceae

Lysionotus oblongifolius W.T. Wang

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect terrestrial or lithophytic herb to 1 m tall in shady place. Flowers light blue-violet. Occasional. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1270.

Asclepiadaceae

Hoya lyi H. Lév.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Epiphytic vine to 2 m long on old mossy tree. Flowers white to white with light pink tint, corona purple. Common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1269.

Convallariaceae

Peliosanthes macrostegia Hance

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Terrestrial herb in shady place. Flower buds dirty violet. Occasional. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1268.

Zingiberaceae

Zingiber cochleariforme D. Fang

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect terrestrial and lithophytic herb to 2 m tall in open rocky place. Flowers pale yellowish, lip with reddish marks. Not common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1267.

Zingiberaceae

Zingiber cochleariforme D. Fang

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect terrestrial and lithophytic herb to 2 m tall in open rocky place. Flowers pale yellowish, lip with reddish marks. Not common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1267.

Zingiberaceae

Hedychium flavum Roxb.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect terrestrial and lithophytic herb to 1.5 m tall in open rocky place. Flowers yellow. Occasional. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1266.

Orchidaceae

Liparis superposita Ormerod

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Lithophytic creeping herb on open mossy rocks. Flowers pale olive-green. Occasional. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1265.

Campanulaceae

Cyclocodon lancifolius Kurz

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Terrestrial and lithophytic herb to 1 m tall on very steep open rocky slope. Flowers white. Not rare. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1264.

Cyperaceae

Carex sp. 2

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Lithophytic sedge on open vertical travertine deposits along small stream. Locally very common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1263.

Balsaminaceae

Impatiens sp.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect terrestrial and lithophytic herb in rather open places. Flower bright yellow. Not rare. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1262.

Rubiaceae

Ophiorrhiza sp.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Terrestrial and lithophytic herb in rather open places. Flower buds light pink-violet. Common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1261.

Begoniaceae

Begonia subhowii S.H. Huang

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Terrestrial and lithophytic herb in shady places. Flowers white or white with light pink tint. Common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1260. Det.: Yu-Min Shui 20.12.2019

Primulaceae

Lysimachia insignis Hemsl.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect terrestrial and lithophytic herb to 1 m tall in shady places. Common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1259.

Orchidaceae

Eria coronaria Rchb.f.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Lithophytic herb on open mossy rocks. Flowers white, lip with yellow spor and purple nerves. Common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1258.

Primulaceae

Lysimachia petelotii Merr.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Terrestrial and lithophytic herb in open mossy places. Not rare. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1257.

Gesneriaceae

Aeschynanthus bracteatus Benth.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Pendulous epiphytic undershrub with stems to 1 m long on old mossy trees. Flowers bright red. Occasional. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1256. Det. D. Middleton 13.12.2019

Gesneriaceae

Paraboea sinensis (Oliv.) B.L.Burtt

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect lithophytic herb or undershrub to 1 m tall on open mossy rocks. Not rare. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1255.

Gesneriaceae

Paraboea sinensis (Oliv.) B.L.Burtt

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect lithophytic herb or undershrub to 1 m tall on open mossy rocks. Not rare. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1255.

Gesneriaceae

Hemiboea malipoensis Y.H. Tan

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Lithophytic herb on shady rocks. Flowers light yellow. Common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1254.

Orchidaceae

Goodyera foliosa Benth. ex Hook.f.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Terrestrial creeping herb in shady place. Not common. Leaves uniform grassy-green. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1253.

Valerianaceae

Valeriana hardwickii Wall.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Erect terrestrial and lithophytic herb to 1 m tall on open rocky place. Occasional. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1252.

Piperaceae

Peperomia tetraphylla Hook. & Arn.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Epiphyte on old mossy tree. Occasional. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1251.

Lauraceae

Beilschmiedia glauca S.K. Lee & L.F. Lau

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Small to medium size tree in open place. Fruits light green. Not common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1250.

Commelinaceae

Streptolirion volubile Edgew. var. angustifolia Aver., var. nov.

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Herbaceous vine to 3 m long in open place. Flowers light pink, anther yellow. Occasional. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1249

Balsaminaceae

Impatiens sp. 2

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, Binh Mountain, around point 23.09452ºN 104.84831ºE, steep rocky slopes composed with highly eroded limestone at elevation 1400–1600 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest with plantation of “wild-grown” Amomum. Terrestrial and lithophytic herb to 1 m tall in open place. Flowers light pink. Tepals with purple-red nerves. Locally common. 4 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1248.

Urticaceae

Elatostema myrtillus (H. Lév.) Hand.-Mazz.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Lithophytic herb to 0.5 m tall in shady rocky places. Locally very common. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1247.

Urticaceae

Elatostema myrtillus (H. Lév.) Hand.-Mazz.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Lithophytic herb to 0.5 m tall in shady rocky places. Locally very common. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1247.

Gesneriaceae

Rhynchoglossum obliquum Blume

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic herb to 0.5 m tall in shady rocky places. Flowers blue. Locally very common. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1246.

Linaceae

Tirpitzia sinensis (Hemsl.) Hallier f.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Shrub to 2 m tall in open rocky places. Flowers pure white. Common. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1245.

Urticaceae

Boehmeria penduliflora Wedd. ex D.G. Long

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Secondary open scrub along road. Shrub 1.5-2 m tall in open place. Commonest weed. Inflorescences light green. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1244.

Acanthaceae

Asystasiella neesiana (Wall.) Lindau

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Erect terrestrial and lithophytic herb to 1 m tall in rather open rocky places. Flowers light purple-violet. Common. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1243.

Urticaceae

Lecanthus peduncularis (Royle) Weddell

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Erect terrestrial and lithophytic herb to 0.5 m tall in shady place. Inflorescences light green to almost white. Common. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1242.

Cucurbitaceae

Thladiantha sp.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Herbaceous vine to 2 m long in open rocky place. Fruit light green with dark green longitudinal stripes. Occasional. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1241.

Primulaceae

Lysimachia insignis Hemsl.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Erect terrestrial and lithophytic herb to 1 m tall in shady place. Occasional. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1240.

Orchidaceae

Habenaria sp.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic tuberiferous herb in shady place. Rare. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1239.

Convallariaceae

Aspidistra sp.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic rhizomatous herb in shady place. Locally common. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1238.

Rubiaceae

Ophiorrhiza sp.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic herb to 1 m tall in shady rocky place. Flowers white or white with very light pink tint. Common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1405b (photo only).

Orchidaceae

Paphiopedilum exul (Ridl.) Rolfe

Champasak Prov., 15º04ʹ21.1ʹʹN 106º12ʹ19.2ʹʹ, elevation 1150 m a.s.l., 28.11.2019, N.L. Orlov, L.K. Iogansen, AL 1272 (photo only).