Справочные данные LE - Этикетки Аверьянова Л. В.

FLORA OF VIETNAM
Orchidaceae
Dendrobium chrysanthum Wall.

Ha Giang Prov., Quan Ba Distr., Quan Ba Village street market. Wild collected epiphyte sold as an ornamental plant. Flowers bright yellow, lip with 2 maroon spots at the center. Not rare in the nature in the area. 13 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1601 (LE01061314).

FLORA OF VIETNAM
Apocynaceae
Holarrhena pubescens Wall.

Ha Giang Prov., Quan Ba Distr., Thai An Commune, Seo Lung Two Village, around point 22.96988°N 105.08646°E. Very steep mountain slopes composed of stratified shale and clayey subsoil at elevation 800–1000 m a.s.l. Tree 10-15 m tall on very steep slope of stream canyon. Fruits green to 0.5 m long. Not common. 10 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1600 (LE01061303).

FLORA OF VIETNAM
Malpighiaceae
Aspidopterys henryi Hutch.

Ha Giang Prov., Quan Ba Distr., Thai An Commune, Seo Lung Two Village, around point 22.96988°N 105.08646°E. Very steep mountain slopes composed of stratified shale and clayey subsoil at elevation 800–1000 m a.s.l. Large woody vine to 30 m long flowering in canopies of large trees. Flowers dull yellowish. Not common. 10 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1599 (LE01066650).

FLORA OF VIETNAM
Burseraceae
Canarium album Blanco?

Ha Giang Prov., Quan Ba Distr., Thai An Commune, Seo Lung Two Village, around point 22.96988°N 105.08646°E. 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 (LE01070158).

FLORA OF VIETNAM
Myrsinaceae
Ardisia silvestris Pit.

Ha Giang Prov., Quan Ba Distr., Thai An Commune, Seo Lung Two Village, around point 22.96988°N 105.08646°E. 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 to 0.5 m tall in mossy open place along trail. Leaves light green or pinkish-green with dark areas along nerves. Not common. 10 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1597 (LE01061310).

FLORA OF VIETNAM
Orchidaceae
Dendrobium thyrsiflorum B.S. Williams

Ha Giang Prov., Quan Ba Distr., Quan Ba Village street market. Wild collected epiphyte sold as an ornamental plant. Flowers bright yellow, lip bright yellow-orange. Not rare in the nature in the area. 13 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1596 (LE01061315).

FLORA OF VIETNAM
Tiliaceae
Burretiodendron hsienmu W.Y. Chun & F.C. How
( = Excentrodendron tonkinense (A. Chevalier) Hung T. Chang & R. H. Miao)

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 35 m tall an diameter more than I m. Very common. Many seedling and saplings were observed. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1595 (LE01061312).

FLORA OF VIETNAM
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 (LE01066653).

FLORA OF VIETNAM
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 (HN, LE01070184).

FLORA OF VIETNAM
Vitaceae
Cayratia corniculata Gagnep.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 (HN, LE01067080, LE01070185).

FLORA OF VIETNAM
Fagaceae
Castanopsis sp.?

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 (HN, LE01067079, LE01070187).

FLORA OF VIETNAM
Rubiaceae
Ophiorrhiza amplifolia Drake

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 (HN, LE01067075, LE01070186).

FLORA OF VIETNAM
Gesneriaceae
Hemiboea malipoensis Y.H. Tan

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 (HN, LE01067078, LE01070188).

FLORA OF VIETNAM
Myrsinaceae
Ardisia sp. 4

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 (HN, LE01067077).

FLORA OF VIETNAM
Polypodiaceae s.l.
Asplenium unilaterale Lam.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 (HN, LE01067074, LE01070190).

FLORA OF VIETNAM
Orchidaceae
Phaius mishmensis Rchb.f.,

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 (HN, LE01066826, LE01070191).

FLORA OF VIETNAM
Orchidaceae
Malaxis ophrydis (J. Koenig) Ormerod

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 (HN, LE01066825, LE01070192).

FLORA OF VIETNAM
Gesneriaceae
Ornithoboea wildeana Craib

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 (HN, LE01067073, LE01070193).

FLORA OF VIETNAM
Polypodiaceae s.l.
Polystichum deltatum Li Bing Zhang, M.Q. Han & Yan Liu

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 fern on steep rocky slope. Very common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1583 (HN, LE01067069, LE01070194).

FLORA OF VIETNAM
Euphorbiaceae
Trigonostemon thyrsoideus Stapf

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 of shrub 3-5 m tall and 3-4 cm in diameter. Fruits light green. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1582 (HN, LE01067072, LE01070195).

FLORA OF VIETNAM
Orchidaceae
Calanthe herbacea Lindl.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 rocky place. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1581 (HN, LE01066824, LE01070196).

FLORA OF VIETNAM
Poaceae (Bambusoideae)
Neomicrocalamus prainii (Gamble) Keng f.*

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Woody grass with pendulous stems to 10 m long on very steep rocky slopes and cliffs. Locally very common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1580 (HN, LE01067076, LE01070197).

FLORA OF VIETNAM
Convallariaceae
Rohdea wattii (C.B.Clarke) Yamashita & M.N.Tamura
(= Tupistra wattii (C.B. Clarke) Hook.f.)

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 and flower bracts green. Very common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1579 (HN, LE01067071, LE01070198).

FLORA OF VIETNAM
Clusiaceae
Garcinia sp. 2

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 10-15 m. Fruits green. Very common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1578 (HN, LE01067070, LE01070200).

FLORA OF VIETNAM
Cupressaceae
Calocedrus rupestris Aver. & T.H.Nguyên & P.K.Lôc

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 7 m tall on mountain top. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1577 (HN, LE01067023, LE01070201).

FLORA OF VIETNAM
Convallariaceae
Ophiopogon latifolius L. Rodr.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 with stem 0.6-0.7 m tall in shady place among rocks. Flowers almost white. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1576 (HN, LE01067067, LE01070202).

FLORA OF VIETNAM
Begoniaceae
Begonia aspersa sp.nov.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 and terrestrial ephemeroid herb in. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1575a (HN, LE01067068, LE01070203).

Herbarium and photos prepared in 28 August 2020, L. Averyanov, T. Maisak, VR 1575.1. Rhizome very short fleshy white, petioles light pale pink, leaves above dark green with many irregular silvery marks, below pale greenish to almost white irregularly marked with purple, tepals white or white with very light purple tint, anther and stigma bright yellow, fruits grassy green with 3 triangular wings, median twice larger than two others.

FLORA OF VIETNAM
Polypodiaceae s.l.
Antrophyum callifolium Blume

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 fern on shady mossy cliff. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1575 (HN, LE01067068, LE01070203).

FLORA OF VIETNAM
Orchidaceae
Habenaria calcicola Aver.?

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 tuberiferous herb in shady place among rocks. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1574 (HN, LE01066823, LE01070204).

FLORA OF VIETNAM
Polypodiaceae s.l. (Tectariaceae)
Tectaria polymorpha (Wall. ex Hook.) Copel.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 fern in shady rocky place. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1573 (HN, LE01067065, LE01070199, LE01070205).

FLORA OF VIETNAM
Orchidaceae
Bulbophyllum sp.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Creeping epiphyte on old mossy tree. Occasional. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1572 (HN, LE01066822, LE01070206).

FLORA OF VIETNAM
Begoniaceae
Begonia pseudodryadis C.Y. Wu var. bitepala Aver., var. nov.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Rosulate lithophytic herb on vertical shady mossy cliff. Leaves dark olive-green with irregular whitish spots above, pale purple with light greenish spots below. Flowers light pink-purple, anther yellow. Locally common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1571 (HN, LE01067066, LE01070207).

FLORA OF VIETNAM
Orchidaceae
Bulbophyllum longibrachiatum Z.H. Tsi

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Creeping lithophytic and epiphytic herb. Leaves purple-violet below. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1570 (HN, LE01066821, LE01070208).

FLORA OF VIETNAM
Gesneriaceae
Paraboea nutans D. Fang & D.H. Qin

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 rosulate herb on shady mossy vertical cliff. Leaves dark green above, almost gray-white below. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1569 (HN, LE01067064, LE01070209).

FLORA OF VIETNAM
Orchidaceae
Podochilus khasianus Hook.f.,

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 clustering herb on shady mossy rocks. Not rare. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1568 (HN, LE01066820, LE01070210).

FLORA OF VIETNAM
Poaceae (Bambusoideae)
Vietnamcalamus sp.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Woody grass about 3 m tall on rocky top of mountain. Very common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1567 (HN, LE01067063, LE01070211).

FLORA OF VIETNAM
Orchidaceae
Liparis bootanensis Griff.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Creeping lithophytic herb on shady mossy rocks. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1566 (HN, LE01066819, LE01070212).

FLORA OF VIETNAM
Orchidaceae
Goodyera hispida Lindl.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 creeping herb on shady mossy rocks. Leaves dull velvety green with light green median stripe and white nerves. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1565 (HN, LE01066818, LE01070213).

FLORA OF VIETNAM
Annonaceae
Mitrephora macclurei Weeras. & R.M.K. Saunders

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 6-7 m tall in open rocky place. Flowers yellow, internal tepals light pale pink-purple. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1564 (HN, LE01070214).

FLORA OF VIETNAM
Orchidaceae
Thelasis khasiana Hook.f.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Clustering epiphyte on old mossy tree. Occasional. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1563 (HN, LE01066817, LE01070215).

FLORA OF VIETNAM
Orchidaceae
Bulbophyllum macraei Rchb.f.?

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Creeping epiphyte and lithophyte. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1562 (HN, LE01066816, LE01070216).

FLORA OF VIETNAM
Orchidaceae
Bulbophyllum apodum Hook.f.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Creeping epiphyte and lithophyte. Common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1561 (HN, LE01066815, LE01070217).

FLORA OF VIETNAM
Orchidaceae
Coelogyne fimbriata Lindl.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Creeping epiphyte and lithophyte. Flowers dull yellowish, lip with brown center. Very common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1560 (HN, LE01066814, LE01070218).

FLORA OF VIETNAM
Fagaceae
Quercus glauca Thunb.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 7-10 m tall on mountain top. Seeds glossy green. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1559 (HN, LE01067062, LE01070219).

FLORA OF VIETNAM
Rubiaceae
Spiradiclis karstana L. Wu, X. Li & Q.R. Liu

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 or undershrub to 1 m tall in open rpcky place. Flowers purple. Occasional. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1558 (HN, LE01067021, LE01070220).

FLORA OF VIETNAM
Euphorbiaceae
Phyllanthus elegans Wall.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Shrub 2-3 m tall in open place. Fruits light yellowish-green. Occasional. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1557 (HN, LE01067061, LE01070141).

FLORA OF VIETNAM
Orchidaceae
Odontochilus elwesii C.B.Clarke ex Hook.f.?

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Creeping terrestrial herb in shady rocky place. Leaves uniform glossy dark purple. Not common. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1556 (HN, LE01066813, LE01070142).

FLORA OF VIETNAM
Polypodiaceae s.l. (Aspleniaceae)
Asplenium dianguiense X.C. Zhang

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 lithophytic fern on steep rocky slope. Occasional. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1555 (HN, LE01067024, LE01070143).

FLORA OF VIETNAM
Sterculiaceae
Sloanea mollis Gagnep.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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 15-20 m tall. Young fruits light green, old fruits brown, with soft hairs. Occasional. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1554 (HN, LE01058682, LE01070144).

FLORA OF VIETNAM
Orchidaceae
Bulbophyllum pecten-veneris (Gagnep.) Seidenf.

Ha Giang Prov., Quan Ba Distr., Can Ty Commune, Sin Suoi Ho Village, around point 23.09566°N 105.02142°E. 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. Creeping epiphyte on old mossy tree. Occasional. 11 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1553a.
Herbarium and photos prepared in 23 09 2020, flowers yellow-orange, sepals and petals with red nerves, lip fluished with red, column white, anther light yellow, L. Averyanov, VR 1553a.1.