Справочные данные LE - Этикетки Аверьянова Л. В.

FLORA OF VIETNAM
Polypodiaceae s.l.
Monacosorum sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 1000-1200 m a.s.l.

Terrestrial fern on very steep shady rocky slope. Common.

HAL 12770 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Microlepia hookeriana

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 1000-1200 m a.s.l.

Terrestrial fern on very steep shady rocky slope. Common.

HAL 12769 18 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, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 1000-1200 m a.s.l.

Shrub or treelet to 4 m tall on very steep shady rocky slope. Flower buds pink. Occasional.

HAL 12768 18 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, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 1000-1200 m a.s.l.

Shrub about 1.5 m tall on very steep shady rocky slope. Fruits brightly red. Not common.

HAL 12767 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Melastomataceae
Phyllagathis sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 1000-1200 m a.s.l.

Terrestrial and lithophytic rosulate herb on very steep shady rocky slope. Flowers white with light purple tint to light pink. Very common.

HAL 12766 18 February 2009 Photo
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Lorantaceae
Lorantus sp.?

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 1000-1200 m a.s.l.

Parasitic shrublet in canopies of trees along ridge edge. Fruits orange-red. Rare.

HAL 12765 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Rubiaceae
Lasianthus sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 1000-1200 m a.s.l.

Shrub or treelwt to 2 m tall on very steep shady rocky slope. Common.

HAL 12764 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Mischobulbum cordifolium (Hook.f.) Schltr.?

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial creeping herb on very steep shady rocky slope. Leaves light green with unclear dark green spots. Not common.

HAL 12763 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Begoniaceae
Begonia sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial and lithophytic herb on very steep shady rocky slope. Leaves uniform dark green. Occasional.

HAL 12762 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Microlepia sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial fern on very steep shady rocky slope. Common.

HAL 12761 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Taccaceae
Tacca chantierii

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial herb on steep shady rocky slope. Fruits glossy green. Not rare.

HAL 12760 18 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, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial herb on steep shady rocky slope. Fruits brightly red. Locally common.

HAL 12759 18 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, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial fern on steep shady rocky slope. Very common.

HAL 12758 18 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, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial fern on steep shady rocky slope. Very common.

HAL 12757 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Asplenium normale

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial fern on steep shady rocky slope. Very common.

HAL 12756 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Lepisorus sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Creeping epiphytic vine in canopies of trees on steep shady rocky slope. Very common.

HAL 12755 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Myrsinaceae
Maesa sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Treelet or shrub to 4 m tall on steep rocky slope. Not common.

HAL 12754 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Cyperaceae
Hypolithrim nemorosum

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial sedge on steep shady rocky slope. Very common.

HAL 12753 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Melastomataceae
Phyllagathis sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial creeping herb on steep shady rocky slope. Locally very common.

HAL 12752 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Zingiberaceae
Siliquamomum tonkinense

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial herb to 1.5 m tall on steep shady rocky wet slope. Fruits green. Occasional.

HAL 12751 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Rubiaceae
Ixora sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Shrub about 2 m tall on very steep shady rocky slope. Fruits red. Occasional.

HAL 12750 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Urticaceae
Elatostemma sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial and lithophytic herb to 1 m tall on very steep shady rocky wet slope. Flowers light green to pink. Locally very common.

HAL 12749 18 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, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Shrub 2-2.5 m tall on very steep shady rocky slope. Flowers light green. Not common.

HAL 12748 18 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, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial and lithophytic herb on very steep shady rocky wet slope. Locally common.

HAL 12747 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l. (Marattiaceae)
Archangiopteris sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial fern on very steep shady rocky slope. Locally common.

HAL 12746 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Begoniaceae
Begonia alta Aver., sp.nov.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial herb to 2 m tall on very steep shady rocky slope. Flowers light pink. Anthers and stigmas yellow. Leaves uniform velvety dull gray-green. Locally common.

HAL 12745 18 February 2009 Photo.
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, Ten Mountain, around mountain top, point 21°06′49”N 104°56′03”E.

Primary broad-leaved evergreen forest on steep mountain slopes composed with shale at elevation 800-1000 m a.s.l.

Terrestrial fern on very steep shady rocky slope. Common.

HAL 12744 18 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Cyperaceae
Mapania sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on steep slopes of hills composed with shale at elevation 400-500 m a.s.l.

Terrestrial sedge to 1.5 m tall in shady place. Locally common.

HAL 12743 17 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°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Lithophytic herb to 1 m tall on mossy boulders along rocky ridge edge. Not common.

HAL 12742 17 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°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Shrub or treelet to 4 m tall on steep open rocky slope. Fruits green, not juicy. Occasional.

HAL 12741 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Araliaceae
Schefflera sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Shrub to 4 m tall on steep open rocky slope. Flowers greenish with purple tint. Common.

HAL 12740 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polypodiaceae s.l.
Abacopteris triphylla

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Terrestrial fern on steep shady rocky slope. Locally very common.

HAL 12739 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Arecaceae
Guihaia grossifibrosa?

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Dwarf palm to 1.5 m tall on rocky tops of mountain and along tops of ridge edge. Not rare.

HAL 12738 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Paphiopedilum henryanum Braem

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Clustering lithophyte on mossy boulders and cliffs along rocky ridge edge. Not rare.

HAL 12737 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

Flowered under cultivation in October 2009. Flowers odorless; sepal and synsepal dull yellowish with brown-purple marks; petals light pink-violet with brown-purple marks; lip light pink-violet; synsepal yellow. Photos.

FLORA OF VIETNAM
Orchidaceae
Paphiopedilum hirsutissimum (Lindl.) Stein var esquirolei

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Clustering lithophyte on mossy boulders and cliffs along rocky ridge edge. Not common.

HAL 12736 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Pelatantheria insectifera (Rchb.f.) Ridl.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Short lithophytic vine on mossy rocks and cliffs along rocky ridge edge. Locally common.

HAL 12735 17 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°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Terrestrial fern on steep shady rocky slope. Occasional.

HAL 12734 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Eria pannea Lindl.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Creeping epiphyte along mossy rocky ridge edge. Locally common.

HAL 12733 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Bulbophyllum ambrosia Hance

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Creeping epiphyte along mossy rocky ridge edge. Flowers fragrant, white, sepals with purple stripes. Locally common.

HAL 12732 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Orchidaceae
Epigeneium chapaense Gagnep.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Creeping epiphyte and lithophyte along mossy rocky ridge edge. Locally very common.

HAL 12731 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Lamiaceae Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Terrestrial and lithophytic herb along mossy rocky ridge edge. Locally common.

HAL 12730 17 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°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Terrestrial and lithophytic fern along mossy rocky ridge edge. Locally common.

HAL 12729 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Polygalaceae
Polygala sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Undershrub to 2 m tall along mossy rocky ridge edge. Flowers light yellowish. Not common.

HAL 12728 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Acanthaceae Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

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

Terrestrial herb in wet shady place along rocky stream canyon. Flowers white. Not common.

HAL 12727 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Begoniaceae
Begonia sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on steep slopes of hills composed with shale at elevation 400-500 m a.s.l.

Terrestrial herb in very shady place. Leaves uniform green, nerves purple. Fruits dirty purple. Not rare.

HAL 12726 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Pentaphragmaceae
Pentaphragma sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on steep slopes of hills composed with shale at elevation 400-500 m a.s.l.

Terrestrial herb in very shady place. Locally common.

HAL 12725 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Meliaceae Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Treelet 4-6 m tall on wet shady rocky valley. Flower buds white, light greenish. Occasional.

HAL 12724 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Carlemanniaceae
Sylvianthus tonkinensis

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Terrestrial and lithophytic undershrub to 2 m tall on wet shady rocky valley. Flowers white. Locally very common.

HAL 12723 17 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°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Terrestrial and lithophytic herb to 0.5 m tall on wet shady rocky slope. Locally very common.

HAL 12722 17 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.

FLORA OF VIETNAM
Aristolochiaceae
Asarum balansae (or A. wulimgense?)

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°02′55”N 104°56′51”E.

Primary broad-leaved forest on very steep rocky slopes and cliffs of Svoi Lap remnant mountain composed with highly eroded solid marble-like limestone at elevation 500-600 m a.s.l.

Terrestrial creeping herb on wet shady rocky slope. Flowers dirty gray-brownish. Occasional.

HAL 12721 17 February 2009 Photo.
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.