Справочные данные LE - Этикетки Аверьянова Л. В.

FLORA OF VIETNAM
Orchidaceae
Bulbophyllum sp.
Bulbophyllum muscicola Rchb.f.
(=Bulbophyllum hookeri (Duthie) J.J.Smith)

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l.

Clustering epiphyte in canopies of tall mossy trees near to the mountain top. Occasional.

HAL 12681c 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

Flowered under cultivation in July-August 2009. Flowers odorless, reddish-orange, petals white. Photos.

FLORA OF VIETNAM
Orchidaceae
Liparis viridiflora (Blume) Lindl.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l.

Creeping epiphyte and lithophyte in shady place near to the mountain top. Common.

HAL 12681b 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

Fl. cult. in August 2015. Flowers entirely light greenish. L.Averyanov.

FLORA OF VIETNAM
Orchidaceae
Habenaria calcicola Aver.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E (Xuan Son national park). Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l. Lithophytic and terrestrial tuberiferous herb on very steep rocky slope and on cliffs. Occasional.
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son HAL 12681a 16 February 2009 (holotype)

Flowered under cultivation in August-September 2009. Flowers with light sweet fragrance, light green, anthers yellow. Coll.: L.Averyanov HAL 12681aa (epitype)

d-EXSICCATES OF VIETNAMESE FLORA 0167/HAL 12681aa (LE)
© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

FLORA OF VIETNAM
Begoniaceae
Begonia hiepiana sp.nov.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l.

Lithophytic and terrestrial herb in wet shady rocky valley of small stream. Flowers light pink, anthers and stigmas yellow. Leaves dark green, fluorescent with cyan-green, underside with pink-purple nerves. Not common.

HAL 12681 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Colysis sp.?

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l.

Terrestrial fern with fronds to 1.5 m long in wet rocky valley of small stream. Common.

HAL 12680 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Polystichum sp.?

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l.

Terrestrial fern with fronds to 2 m long in wet rocky valley of small stream. Common.

HAL 12679 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Gesneriaceae Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l.

Lithophytic herb to 2 m tall on mossy boulders in wet rocky valley of small stream. Common.

HAL 12678 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Urticaceae
Elatostema sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l.

Lithophytic herb on mossy boulders in wet rocky valley of small stream. Flowers whitish, leaves dark green. Very common.

HAL 12677 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Urticaceae
Pilea sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l.

Lithophytic herb on mossy boulders in wet rocky valley of small stream. Flowers whitish, leaves dark green. Very common.

HAL 12676 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Buxaceae
Sarcococca sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l.

Undershrub to 1.5 m tall in wet rocky valley of small stream. Fruits brightly red, juicy. Not common.

HAL 12675 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Rubiaceae
Mycetia sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l.

Lithophytic and terrestrial undershrub to 1.5 m tall in wet rocky valley of small stream. Fruits white, juicy. Common.

HAL 12674 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Liparis cordifolia Hook.f.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-500 m a.s.l.

Lithophytic herb on shady mossy boulders in rather wet place. Leaves uniform green. Rare.

HAL 12673 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Davallia sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Creeping epiphyte. Occasional.

HAL 12672 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Antrophium sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Lithophytic fern on shady vertical limestone cliff. Not common.

HAL 12671 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Euphorbiaceae Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Treelet 1.5-2 m tall on steep rather open rocky slope. Flowers white. Not common.

HAL 12670 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Leeaceae
Leea indica?

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Treelet about 3 m tall on steep rather open rocky slope. Fruits green to black. Not common.

HAL 12669 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Rubiaceae Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Shrub about 2 m tall on steep shady rocky slope. Fruits green. Not common.

HAL 12668 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Liliaceae s.l. (Convallariaceae)
Ophiopogon sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial herb on steep shady rocky slope. Fruits dark blue. Not common.

HAL 12667 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM

Ophiopogon rupestris N.Tanaka et Aver. Type

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E. Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l. Terrestrial herb on steep shady rocky slope. Very common.
HAL 12666 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son

Fl. at cultivation in October 2012

d-EXSICCATES OF VIETNAMESE FLORA 0196/HAL 12666 (LE)
© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

FLORA OF VIETNAM
Rubiaceae
Ixora sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Shrub to 2 m tall on steep shady rocky slope. Flower buds light dull pinkish-yellow. Not common.

HAL 12665 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Rubiaceae Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Shrub to 1 m tall on steep shady rocky slope. Fruits brightly red. Not common.

HAL 12664 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Myrsinaceae
Ardisia sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Herb to 30 cm tall on steep shady rocky slope. Fruits brightly red. Locally common.

HAL 12663 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l. (Hymenophyllaceae)
Wendelboschia sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Creeping epiphytic and lithophytic vine on steep shady rocky slope. Not common.

HAL 12662 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Pteris sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial and lithophytic fern on steep shady rocky slope. Common.

HAL 12661 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Pteris sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial and lithophytic fern on steep shady rocky slope. Common.

HAL 12660 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Podocarpaceae
Podocarpus neriifolius

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Treelet 3-4 m tall on shady rocky slope. Occasional.

HAL 12659 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Arecaceae
Licuala dasyantha Burret. s.l.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Dwarf palm to 0.5 m tall on shady rocky slope. Flowers and inflorescences dull yellowish-pink. Locally very common. Occasional dominant of herbaceous stratum at elevation 500-550 m a.s.l.

HAL 12658 16 February 2009 Photo.
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

d-EXSICCATES OF VIETNAMESE FLORA 0158/HAL 12658 (HN, LE)
© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

FLORA OF VIETNAM
Orchidaceae
Cheirostylis chinensis Rolfe

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Creeping lithophytic herb on shady mossy boulders. Flower white, leaves dull gray-green. Not common.

HAL 12657 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Rubiaceae
Morinda sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Woody vine 6-8 m long on rocky top of limestone ridge. Not common.

HAL 12656 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Ranunculaceae
Clematis sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Herbaceous vine 6-8 m long on rocky top of limestone ridge. Not common.

HAL 12655 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Rutaceae Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Gnarled treelet 4-5 m tall on rocky top of limestone ridge. Flower buds whitish. Common.

HAL 12654 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Oberonia kwangsiensis Seidenf.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Epiphytic and lithophytic herb on shady vertical cliffs near to the top of limestone ridge. Very common.

HAL 12653 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Eria pachyphylla Aver.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Lithophytic herb on shady vertical cliffs near to the top of limestone ridge. Common.

HAL 12652 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Cyrtomium sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Lithophytic fern on shady vertical cliffs near to the top of limestone ridge. Occasional.

HAL 12651 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Biermannia acalcarata?

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Epiphyte on tall tree. Occasional.

HAL 12650b 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Malaxis acuminata D.Don

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial herb in shady places. Rare.

HAL 12650a 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

Fl. et coll. In Komarov Institute Horto. at 25 March 2009. Flowers odorless, tepals pink, lip yellowish-green.

FLORA OF VIETNAM
Orchidaceae
Oberonia cavaleriei Finet

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Lithophytic herb on shady vertical cliffs near to the top of limestone ridge. Flowers light green to yellow-orange. Very common.

HAL 12650 16 February 2009 Photo.
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

d-EXSICCATES OF VIETNAMESE FLORA 0162/HAL 12650 (HN, LE)
© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

FLORA OF VIETNAM
Orchidaceae
Podochilus khasianus Hook.f.?

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Clustering epiphyte and lithophyte on steep shady rocky slope near top of limestone ridge. Common.

HAL 12649 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Adiantum caudatum

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial and lithophytic fern on steep rocky slope. Very common.

HAL 12648 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Rubiaceae
Ophiorrhiza sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial and lithophytic herb to 0.5 m tall is shady places on rocky slope. Leaves dark glossy green. Common.

HAL 12647 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Urticaceae
Elatostema sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial herb is shady places on rocky slope. Leaves dark glossy green. Common.

HAL 12646 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Pteris sp. (P. deltodon?)

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Lithophytic fern on shelves of shady vertical limestone on travertine deposits. Rare.

HAL 12645 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Cymbidium lancifolium Hook.f.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial and lithophytic herb on steep shady rocky slope. Occasional.

HAL 12644 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Liparis mannii Reichenb.f.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Clustering lithophyte on open mossy boulders near rocky top of limestone ridge. Common.

HAL 12643 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Rubiaceae
Ophiorrhiza sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial herb to 1 m tall on steep shady rocky slope. Very common.

HAL 12642 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Rubiaceae
Ophiorrhiza sp.?

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial herb to 1 m tall on steep shady rocky slope. Flowers purple-brown. Occasional.

HAL 12641 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Gesneriaceae Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial and lithophytic undershrub to 1.5 m tall on shady rocky slope. Flowers blue. Common.

HAL 12640 16 February 2009 Photo.
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Urticaceae
Elatostema sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Terrestrial and lithophytic herb on shady rocky slope. Flowers white to light greenish. Common.

HAL 12639 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Araceae
Pothos sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Epiphytic creeping vine to 10 m long on very steep rocky slope. Inflorescences white, spathe green. Common.

HAL 12638 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Gesneriaceae Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l.

Lithophytic rosulate herb in crevices of tall shady vertical limestone cliff covered with travertine deposits. Common.

HAL 12637 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.