Гербарий БИН РАН - Образцы

FLORA OF VIETNAM

Orchidaceae

Dipodium paludosum (Griff.) Reichenb.f.

Vietnam, Dac Lac Prov., Ea H’Leo Distr., Ea Ral municipality, around point 13º13’45’’N 108º10’58’’E. Primary swamp coniferous forest with Glyptostrobus pensilis at elevation about 570 m a.s.l. Terrestrial swampy herb in dense shrubs. Flowers white, tepals with light purple spots. Column yellow. Rare.

HAL 11428 5 April 2008 photo

Coll.: N.T.Hiep, L.Averyanov, P.K.Loc, N.T.Vinh, P.T.Duyen

d-EXSICCATES OF VIETNAMESE FLORA 0125/HAL 11428 (HN, LE)

© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

All photos © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Dipodium paludosum

Lam Dong Province, Da Lat area, wild collected plant cultivated in Hanoi private garden, May 2010, Phan Ke Loc s.n.

Det.: L. Averyanov

All photos © - Phan Ke Loc

FLORA OF VIETNAM

Orchidaceae

Dipodium paludosum

Dak Lak Province area, wild collected plant cultivated in private N.V.Canh garden, 18 11 2006 N.V. Canh s.n.

All photos © - Nguyen Van Canh

Hin Nam No Nature Protected Area

Orchidaceae

Diploprora championii (Lindl.) Hook.f.

Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes at summit of Phou Chuang (Poujeuang) Mt. around point 17°35'00.3"N, 105°47'35.6"E. Primary evergreen mixed and coniferous dense wind-formed forest at elev. 1000-1400 m a.s.l. Epiphyte on tall trees on mountain top. Common. 4 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 675.

Flowered in 15.05.2019. Flowers yellow, lip white, disk concave with brownish-orange marks, column white with violet tint, anther white. L. Averyanov. Photos.

All photos © - L. Averyanov

Orchidaceae

Diploprora championii (Lindl.) Hook.f.

Vietnam, Quang Binh Prov., Minh Hoa Distr., Dan Hoa municipality, Vietnam-Laotian border, around Cha Lo border entrance, point 17°40’52’’N 105°46’00’’E. Broad-leaved primary forest on very steep slopes and along shale ridge at elevation 500-750 m a.s.l. Epiphyte in shady place. Occasional.

HAL 11816A 22 April 2008

Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, N.S.Khang

Fl. In cult. 10 October 2008 Flowers odorless; tepals light yellow; lip white, inside with lateral brownish stripes and 2 low light brownish longitudinal calli, apiculate lip apex light brownish; column and operculum white. Photos.

All photos © - L. Averyanov

Orchidaceae

Diploprora championii (Lindl.) Hook.f.

Lao Cai Prov., Sa Pa Distr., slopes of Hoang Lien Son Range in vicinities of Sa Pa town. Evergreen broad-leaved montane forest on very steep mountain slopes at elevation about 1500-1800 m a.s.l. Epiphyte on tall mossy trees. Flowers light yellow, lip white with yellow marks, column white. Rare.

HAL 11136 24 Apr. 2007. Photo.

Coll.: L.Averyanov, P.K.Loc, A.Averyanova.

All photos © - L. Averyanov

Orchidaceae

Diplomeris pulchella

Drawing from Peng 20202 drawing by L. Averyanov

All drawings © - L. Averyanov

FLORA OF VIETNAM

Plants of Bi Doup – Nui Ba National Park

Orchidaceae

Diglyphosa evrardii (Gagnep.) Tang & F.T.Wang?

Vietnam, Lam Dong Prov., Lac Duong Distr., Da Chais Municipality, around point 12º11’09’N 108º41’20’’E, at elevation about 1500 m a.s.l. Primary mixed forest with Pinus dalatensis and P. krempfii on W slope of Hon Giao ridge. Creeping terrestrial herb. Tepals greenish-purple-brown. Occasional.

HLF 5305 18 October 2005. Photo.

Coll. T.T.T.Trang, T.V.Thao, N.T.Vinh.

Grant from Henry Luce Foundation.

All photos © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Diglyphosa evrardii

Lam Dong Province, Lac Duong, Da Chais, T.B.Vuong 15 Sept 2017

Det.: L. Averyanov

All photos © - Truong Ba Vuong

FLORA OF LAOS

Orchidaceae

Didymoplexis vietnamica Ormerod

Luang Prabang prov., Ngoy distr., Ngoy village, around point 20°42'52.9''N 102°41'15.5''E. Remnants of primary evergreen forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 800-900 m a.s.l. Achlorophyllous terrestrial tuberiferous mycotrophic herb. Rare.

LA-VN 1947a 1 April 2017

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak, Vichith Lamxay, Koudkeo Phommachanh, Phizar Sayalath, Keooudone Souvannakhoummane.

All photos © - Nguyen Sinh Khang

FLORA OF VIETNAM

Orchidaceae

Didymoplexis vietnamica Ormerod

Vietnam, Nghe An Prov., Tuong Duong Distr., Tam Quang Municipality, Tung Huong village, along Khe Mat stream around point 19º03’07’’N 104º36’57’’E at elevation about 550-600 m a.s.l.

Lowland closed secondary and primary old evergreen forest on steep slopes along tops of rocky ridge composed with stratified solid limestone.

Terrestrial achlorophyllous erect herb up to 25 cm tall along ridge. Flowers odorless, white, lip with gray-brown spotted basal callus, below with yellow-brown spot. Rare.

HLF 6673 17 March 2007. Photo.

Coll. Averyanov L., P.K.Loc, N.V.Trai, N.T.Vinh, N.D.Phuong, Averyanova A.

Grant from Henry Luce Foundation.

d-EXSICCATES OF VIETNAMESE FLORA 0092/HLF6673 (HN, LE)

All drawings © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Didymoplexis vietnamica Ormerod

Vietnam, Nghe An Prov., Tuong Duong Distr., Tam Quang Municipality, Tung Huong village, along Khe Mat stream around point 19º03’07’’N 104º36’57’’E at elevation about 550-600 m a.s.l.

Lowland closed secondary and primary old evergreen forest on steep slopes along tops of rocky ridge composed with stratified solid limestone.

Terrestrial achlorophyllous erect herb up to 25 cm tall along ridge. Flowers odorless, white, lip with gray-brown spotted basal callus, below with yellow-brown spot. Rare.

HLF 6673 17 March 2007. Photo.

Coll. Averyanov L., P.K.Loc, N.V.Trai, N.T.Vinh, N.D.Phuong, Averyanova A.

Grant from Henry Luce Foundation.

d-EXSICCATES OF VIETNAMESE FLORA 0092/HLF6673 (HN, LE)

All photos © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Didymoplexis vietnamica Ormerod

Vietnam, Nghe An Prov., Tuong Duong Distr., Tam Quang Municipality, Tung Huong village, along Khe Mat stream around point 19º03’07’’N 104º36’57’’E at elevation about 550-600 m a.s.l.

Lowland closed secondary and primary old evergreen forest on steep slopes along tops of rocky ridge composed with stratified solid limestone.

Terrestrial achlorophyllous erect herb up to 25 cm tall along ridge. Flowers odorless, white, lip with gray-brown spotted basal callus, below with yellow-brown spot. Rare.

HLF 6673 17 March 2007. Photo.

Coll. Averyanov L., P.K.Loc, N.V.Trai, N.T.Vinh, N.D.Phuong, Averyanova A.

Grant from Henry Luce Foundation.

d-EXSICCATES OF VIETNAMESE FLORA 0092/HLF6673 (HN, LE)

All photos © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Didymoplexis vietnamica

Ninh Binh Province, Cuc Phuong Nat. Park, Cuong photo, s.n., a.2012

Det.: L. Averyanov

All photos © - T.Q. Cuong

FLORA OF LAOS

Orchidaceae

Didymoplexis pallens?

Luang Prabang prov., Ngoy distr., Ngoy village, Pha Noi Mountain, around point 20°42'53.6''N 102°40'34.7''E. Remnants of primary evergreen forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 400-450 m a.s.l. Terrestrial achlorophyllous herb. Rare.

LA-VN 1978 ass. 1 April 2017 Photos

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak, Vichith Lamxay, Koudkeo Phommachanh, Phizar Sayalath, Keooudone Souvannakhoummane.

All photos © - Nguyen Sinh Khang

FLORA OF VIETNAM

Orchidaceae

Didymoplexis pallens

Quang Nam – Danang Province, P.V.The s.n. 28 March 2017

Det.: L. Averyanov

All photos © - Pham Van The

FLORA OF LAOS

Orchidaceae

Didymoplexis pallens Griff.

Vientiane prov., Kasi distr., between San and Tham Tai villages, around point 19°17'47.9''N 102°08'58.9''E.

Secondary broad-leaved evergreen dry forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 900-1000 m a.s.l.

Terrestrial achlorophyllous herb in bamboo forest. Flowers white. Locally very common.

LA-VN 1665 25 March 2017

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak, Khamla Inkhavilay, Hongthong Southyvohanh, Pinmany Sisavath, Chanthala Cheuaysamphanh.

All photos © - Nguyen Sinh Khang

RUSSIAN-VIETNAMESE TROPICAL CENTER

Orchidaceae

Didymoplexis pallens Griff.?

Southern Vietnam, Lam Dong prov., Bao Lam distr., Loc Bao municipality, 7 km NW from Loc Bao town. In the forest near rocky river bank, around point 11°50'19''N 107°38'37''E at elev. about 510 m a.s.l.

30 April 2012 M.Nuraliev 644 Photos.

All photos © - M.S. Nuraliev

FLORA OF VIETNAM

Orchidaceae

Didymoplexis pallens

Khanh Hoa Province, Hon Ba N.P., 15 March 2015, T.B.Vuong s.n.

Det.: L. Averyanov

All photos © - Truong Ba Vuong

FLORA OF VIETNAM

Orchidaceae

Didymoplexis pallens

Dong Nai Province, Nam Cat Tien N.P., T.B.Vuong s.n. 30 May 2016

Det.: L. Averyanov

All photos © - Truong Ba Vuong

Orchidaceae

Didymoplexis pallens

Drawing from material from Vietnam, China, Java, & Griffith type, L. Averyanov, 2011

All drawings © - L. Averyanov

Orchidaceae

Didymoplexis micradenia

Ddrawing, Taiwan s.n., L. Averyanov

All drawings © - L. Averyanov

Orchidaceae

Gastrodia sp. nov.?

NORTHERN VIETNAM Nghe An province, Que Phong district, Hanh Dich municipality. Pu Hoat Nature Reserve 21 km NW of Kim Son town Forest, not far from stream N 19° 45' 11" E 104° 47' 26" elev. 970 m Nuraliev M.S., Kuznetsov A.N., Kuznetsova S.P. 2171 08.05.2018.

All drawings © - L. Averyanov

Orchidaceae

Gastrodia sp. nov.?

NORTHERN VIETNAM Nghe An province, Que Phong district, Hanh Dich municipality. Pu Hoat Nature Reserve 21 km NW of Kim Son town Forest, not far from stream N 19° 45' 11" E 104° 47' 26" elev. 970 m Nuraliev M.S., Kuznetsov A.N., Kuznetsova S.P. 2171 08.05.2018.

All photos © - M.S. Nuraliev

Orchidaceae

Gastrodia sp. nov.?

NORTHERN VIETNAM Nghe An province, Que Phong district, Hanh Dich municipality. Pu Hoat Nature Reserve 21 km NW of Kim Son town Forest, not far from stream N 19° 45' 11" E 104° 47' 26" elev. 970 m Nuraliev M.S., Kuznetsov A.N., Kuznetsova S.P. 2171 08.05.2018.

All photos © - M.S. Nuraliev

Fam. Orchidaceae Juss.

Didymoplexiopsis khiriwongensis

S. Vietnam, Prov. Khanh Hoa. Open dry evegreen forest on cliffs at 600-700 m alt. on NE slope of Bi Dup mountain system, near 5-6 km to W of Khanh Le village on Lieng Ly river (near 15 km to W of Cau Ba village). Ephemeroid herb in dry forest. Flowers white with yellowish lip with small brownish papillae. Very rare.

No VH 1441 23.04.1995

International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5094-93)

Participants: L. Averyanov, N.T. Ban, N. Q. Binh, A. Budantzev, L. Budantzev, N.T. Hiep, D.D. Huyen, P.K. Loc, N.X. Tam, G. Yakovlev

All photos © - L. Averyanov

Fam. Orchidaceae

Didymoplexiopsis khiriwongensis Seidenf.

S.Vietnam, Thua Thien Hue Prov., Phu Loc Distr., Bach Ma National Park, N slope of Bach Ma mt system, to the N of point 16°11'50''N 107°50'44''E at elev. 400-600 m a.s.l. Mixed and broad-leaved evergreen primary closed wet mt forest with Shorea stellata & Dacrycarpus imbricatus along narrow ridge and on very steep sandstone/shale slopes. Terrestrial achlorophyllous saprophyte on very steep rocky slope along waterfall cliff. Flowers white, lip at face with callus with finest gray marks, behind with large orange-brown central spot. Rare.

HLF 1391 28 April 2003.

Coll. N.T.Hiep, L.Averyanov, N.T.Vinh et al.

Grant from Henry Luce Foundation.

All photos © - L. Averyanov

Orchidaceae

Didymoplexiopsis khiriwongensis Seidenf.

Vietnam, Quang Tri Prov., Huong Hoa Distr., Huong Phung Municipality, Sa Mui pass, around point 16º48’36’’N 106º34’44’’E at elevation about 1200-1300 m a.s.l. Primary and secondary broad-leaved evergreen submontane forest on very steep rocky shale southern slopes of Sa Mui Mountain. Aclorophyllous terrestrial saprophyte on shady slope with bamboo. Flowers white, lip with yellow spot. Rare.

HLF 5875 29 March 2006. Photo.

Coll. N.T.Hiep, L.Averyanov, P.K.Loc, P.V.The, N.S.Khang, P.H.Duc, L.T.Son, S.Bounphanmy, T.K.Ratana, O.Sonliya, T.Q.Dang, N.V.Hien, H.T.N.Trang, L.T.Chau.

Grant from Henry Luce Foundation.

All photos © - Phan Ke Loc

Fam. Orchidaceae

Didymoplexiopsis khiriwongensis Seidenf.

N.Vietnam, Ha Tinh Prov., Huong Son Distr., Son Hong Municipality, around point 18º34'06''N, 105º11'40''E. Heavily logged primary broad-leaved evergreen dry forest on steep mt slopes and along ridge composed with shale at elev 350-450 m a.s.l. Small ground achlorophyllous gray-yellowish saprophyte. Flowers white, light fragrant, lip with white, finely gray spotted callus above and with yellow-brown spot below. Occasional.

No HAL 5262 9 May 2004 (Photo)

Collectors: P.K.Loc, L.Averyanov, P.V.The, N.T.Vinh.

All photos © - L. Averyanov

Orchidaceae

Didymoplexiopsis khiriwongensis Seidenf.

Attapeu Prov., Saysettha Distr., Dong Am Pham National Protected Area, to the E of Paosamphanmixay village, around point 14°48’24.8”N 107°24’23.2”E. Primary broad-leaved evergreen lowland dry forest on steep shaly hill slopes at elevation 700-920 m a.s.l. Terrestrial achlorophyllous herb in shady place. Flowers white, lip with yellow spot. Rare.

LA-VN 110 28 February 2013 Photo

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, P.V.The, K.Inkhavilay, S.Lorphengsy

All photos © - L. Averyanov

Fam. Orchidaceae

Didymoplexiopsis khiriwongensis Seidenf.

Vietnam, Thua Thien – Hue Prov., A Luoi Distr., A Roang Municipality, Tra Lenh Forestry Department station, around point 16°04'38''N, 107°29'10''E. Primary closed evergreen broad-leaved forest on very steep mountain slopes composed with shale and granite at elevation 700-800 m a.s.l. Terrestrial achlorophyllous saprophyte. Flowers white, lip white with gray spotted callus above, yellow-brown spot below. Occasional along ridge.

No HAL 7246 20 April 2005. Photo.

Collectors: L.Averyanov, P.K.Loc, J.Regalado, T.V.Thao, N.T.Vinh.

All photos © - L. Averyanov

Fam. Orchidaceae

Didymoplexiopsis khiriwongensis Seidenf.

Vietnam, Thua Thien – Hue Prov., A Luoi Distr., A Roang Municipality, Tra Lenh Forestry Department station, around point 16°04'38''N, 107°29'10''E. Primary closed evergreen broad-leaved forest on very steep mountain slopes composed with shale and granite at elevation 700-800 m a.s.l. Terrestrial achlorophyllous saprophyte. Flowers white, lip white with gray spotted callus above, yellow-brown spot below. Occasional along ridge.

No HAL 7246 20 April 2005. Photo.

Collectors: L.Averyanov, P.K.Loc, J.Regalado, T.V.Thao, N.T.Vinh.

d-EXSICCATES OF VIETNAMESE FLORA 0015/HAL7246 (HN, LE)

© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

All photos © - L. Averyanov

Orchidaceae

Didymoplexiopsis khiriwongensis

Drawings made from HAL 5040 & HAL 7246

by L. Averyanov

All drawings © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Didymoplexiella sp.nov.

N Vietnam, sine loc., C.X.Canh s.n., 7 April 2016

Det.: L. Averyanov

All photos © - Chu Xuan Canh

All drawings © - L. Averyanov

All photos © - M.S. Nuraliev

FLORA OF VIETNAM

Orchidaceae

Didymoplexiella ornata

N Vietnam, Quang Ninh, Halong Bay, 20 05 2011, N.T. Hiep, NTH 6271

Det.: L. Averyanov

All photos © - Tien Hiep Nguyen

Materials of complex expedition in spring 2017

Russian-Vietnamese Tropical Centre

Didymoplexiella (only spirit)

SOUTHERN VIETNAM

Gia Lai prov., K'Bang distr., K'rong municip.

Kon Ka Kinh National Park

25 km NW of K'Bang town

Forest

N 14° 18' 25'' E 108° 26' 21'' elev. 820 m

Nuraliev M.S. ? 1781 14.05.2017

Det. L.V. Averyanov

All photos © - M.S. Nuraliev

FLORA OF VIETNAM

Orchidaceae

Didymoplexiella siamensis (Rolfe) Seidenf.

Vietnam, Quang Tri Prov., Huong Hoa Distr., Huong Phung Municipality, Sa Mui pass, around point 16º47’42’’N 106º35’50’’E at elevation about 1000 m a.s.l. Secondary broad-leaved evergreen submontane forest on shale mountains. Terrestrial achlorophyllous olive-brownish to nearly black saprophyte on rocky shady stream slope with bamboo. Flowers white, lip light blue-violet. Not common.

HLF 6263 28 March 2006. Photo.

Coll. L.Averyanov, P.K.Loc, P.V.The.

Grant from Henry Luce Foundation.

d-EXSICCATES OF VIETNAMESE FLORA 0061b/HLF6263 (HN, LE)

© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

All photos © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Didymoplexiella siamensis (Rolfe) Seidenf.

Vietnam, Quang Tri Prov., Huong Hoa Distr., Huong Phung Municipality, Sa Mui pass, around point 16º47’42’’N 106º35’50’’E at elevation about 1000 m a.s.l. Secondary broad-leaved evergreen submontane forest on shale mountains. Terrestrial achlorophyllous olive-brownish to nearly black saprophyte on rocky shady stream slope with bamboo. Flowers white, lip light blue-violet. Not common.

HLF 6263 28 March 2006. Photo.

Coll. L.Averyanov, P.K.Loc, P.V.The.

Grant from Henry Luce Foundation.

d-EXSICCATES OF VIETNAMESE FLORA 0061b/HLF6263 (HN, LE)

© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

All photos © - L. Averyanov & Phan Ke Loc

FLORA OF VIETNAM

Plants of Da Krong Nature Reserve

Orchidaceae

Didymoplexiella siamensis (Rolfe) Seidenf.

Vietnam, Quang Tri Prov., Da Krong Distr., Huc Nghi Municipality, in vicinities of La To village around point 16º29’16’’N 107º00’32’’E at elevation about 414 m a.s.l. Secondary broad-leaved evergreen lowland forest on montane hills composed with shale. Achlorophyllous terrestrial saprophyte on very steep shady wet slope. Flower white. Very rare.

HLF 6216 26 March 2006. Photo.

Coll. L.Averyanov, P.K.Loc, P.V.The, N.S.Khang, N.V.Huy, D.C.Tri, L.M.Tuan, T.T.Tu, P.K.Vuong, P.V.Bao, P.X.Dieu, H.T.Phuong.

Grant from Henry Luce Foundation.

d-EXSICCATES OF VIETNAMESE FLORA 0061a/HLF6216 (HN, LE)

© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

All photos © - L. Averyanov

FLORA OF VIETNAM

Plants of Da Krong Nature Reserve

Orchidaceae

Didymoplexiella siamensis (Rolfe) Seidenf.

Vietnam, Quang Tri Prov., Da Krong Distr., Huc Nghi Municipality, in vicinities of La To village around point 16º29’16’’N 107º00’32’’E at elevation about 414 m a.s.l. Secondary broad-leaved evergreen lowland forest on montane hills composed with shale. Achlorophyllous terrestrial saprophyte on very steep shady wet slope. Flower white. Very rare.

HLF 6216 26 March 2006. Photo.

Coll. L.Averyanov, P.K.Loc, P.V.The, N.S.Khang, N.V.Huy, D.C.Tri, L.M.Tuan, T.T.Tu, P.K.Vuong, P.V.Bao, P.X.Dieu, H.T.Phuong.

Grant from Henry Luce Foundation.

d-EXSICCATES OF VIETNAMESE FLORA 0061a/HLF6216 (HN, LE)

© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

All photos © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Didymoplexiella denticulata Aver., sp.nov. Type

Vietnam, Quang Binh Prov., Le Thuy Distr., Kim Thuy municipality, around Lang Ho village at 16º59’31’’N 106º38’31’’E. Old secondary broad-leaved closed forest on steep shale slopes of Khe Nuoc Trong River at elevation 150-200 m a.s.l. Terrestrial achlorophyllous herb on steep shady slope. Flowers light violet-brown, lip light violet with white apex, column white. Not common.

HAL 11443 9 April 2008 photo

Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, N.S.Khang

d-EXSICCATES OF VIETNAMESE FLORA 0129/HAL 11443 (HN, LE)

© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

All drawings © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Didymoplexiella denticulata Aver., sp.nov. Paratype

Vietnam, Quang Binh Prov., Quang Ninh Distr., Truong Son municipality, around Chan Trong village at 17º10’49’’N 106º29’22’’E. Secondary dry broad-leaved forest on tops and steep slopes of highly eroded karst limestone mountain composed with gray solid marble limestone allied to Long Dai River, at elevation 300-400 m a.s.l. Terrestrial achlorophyllous dull gray-brownish saprophyte. Flowers light violet. Not rare.

HAL 11521 13 April 2008 photo

Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, N.S.Khang

All photos © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Didymoplexiella denticulata Aver., sp.nov. Type

Vietnam, Quang Binh Prov., Le Thuy Distr., Kim Thuy municipality, around Lang Ho village at 16º59’31’’N 106º38’31’’E. Old secondary broad-leaved closed forest on steep shale slopes of Khe Nuoc Trong River at elevation 150-200 m a.s.l. Terrestrial achlorophyllous herb on steep shady slope. Flowers light violet-brown, lip light violet with white apex, column white. Not common.

HAL 11443 9 April 2008 photo

Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, N.S.Khang

d-EXSICCATES OF VIETNAMESE FLORA 0129/HAL 11443 (HN, LE)

© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

All photos © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Didymoplexiella denticulata Aver., sp.nov. Type

Vietnam, Quang Binh Prov., Le Thuy Distr., Kim Thuy municipality, around Lang Ho village at 16º59’31’’N 106º38’31’’E. Old secondary broad-leaved closed forest on steep shale slopes of Khe Nuoc Trong River at elevation 150-200 m a.s.l. Terrestrial achlorophyllous herb on steep shady slope. Flowers light violet-brown, lip light violet with white apex, column white. Not common.

HAL 11443 9 April 2008 photo

Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, N.S.Khang

d-EXSICCATES OF VIETNAMESE FLORA 0129/HAL 11443 (HN, LE)

© Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc

All photos © - L. Averyanov

FLORA OF VIETNAM

Fam. Orchidaceae Juss.

Didymoplexiella siamensis (Rolfe) Seidenf.

N. Vietnam, Tuyen Quang prov., Na Hang distr., Xuan Tam municipality, near Ban Cai village (22º29'18''N, 105º19'47''E). Primary broad-leaved evergreen dry forest on very steep slopes of highly eroded remnant limestone ridge at elev. 450-500 m a.s.l. Terrestrial tuberiferous saprophyte in dry steep slope with bamboo. Flowers with strong, very pleasant fragrance, tepals light purple-violet, column white. Rare.

No HAL 218 22 March 2001

Collectors: P.K.Loc, N.X.Tam, L. Averyanov.

All photos © - L. Averyanov

FLORA OF VIETNAM

Orchidaceae

Didymoplexiopsis vietnamensis Ormerod

Hoa Binh Prov., Lac Son Distr., Tu Do Municipality, Mon village, around point 20°24’52”N 105°19’41”E. Secondary evergreen dry broad-leaved forest on steep rocky slopes of remnant mountain composed with highly eroded marble-like solid crystalline limestone at elevation about 300 m a.s.l. Achlorophyllous herb on rocky slope. Flowers white, Lip with yellow spot. Very rare.

CPC 1380 23 March 2011

Coll.: N.Q.Hieu, L.Averyanov, N.T.Hiep, P.K.Loc, P.V.The, N.T.Vinh, T.B.Ngan, N.Tap, D.D.Dao, V.T.Ha.

All photos © - L. Averyanov

Orchidaceae

Dendrobium yplilon

Wild collected plant unknown origin, cultivated in Japan, Tsukuba botanical garden, Apr 2010, L. Averyanov, s.n.

All photos © - L. Averyanov

Orchidaceae

Dendrobium xichouense S.J.Cheng & Z.Z.Tang

Wild collected plant originated from northern Vietnam, cultivated in private garden in Hanoi.

16 Sept. 2016, Nguyen Phong AL 213, photos.

All photos © - Nguyen Hong Phong