Herbarium LE - Specimens

Rubiaceae

Lam Dong Province, Di Linh District, Brah Yang Mountain, primary and old secondary evergreen broad-leaved and mixed forest (with Pinus khasya) on granite around point 11º27.669ʹ N 108º03.543ʹ E at elevation of 1100-1200 m a.s.l.

Erect lithophytic herb on shady mossy boulders along stream. Not common.

13 November 2023, L. Averyanov, Nguyen Van Canh, T. Maisak, AL2658.

Rubiaceae

Argostemma sp.

Kon Tum Province, Kon Plong District, Kon Chu Rang Nature Reserve near Mang Den Town. around point 14º602000 N 108º298525 E. Primary evergreen mixed and coniferous forest on granite with Dacrycarpus and Dacrydium at elevation about 1200 m a.s.l. Creeping terrestrial herb in shady place. Locally common.

22 November 2023, L. Averyanov, Nguyen Van Canh, T. Maisak, AL2765.

Rubiaceae

Argostemma sp.

Kon Tum Province, Kon Plong District, Kon Chu Rang Nature Reserve near Mang Den Town. around point 14º602000 N 108º298525 E. Primary evergreen mixed and coniferous forest on granite with Dacrycarpus and Dacrydium at elevation about 1200 m a.s.l. Creeping terrestrial herb in shady place. Locally common.

22 November 2023, L. Averyanov, Nguyen Van Canh, T. Maisak, AL2766.

Rubiaceae

Psychotria sp.?

Bac Kan Province, Ba Be District, Nam Mau Commune, Nam Dai Village. Dry evergreen broad-leaved forest on steep rocky slopes composed by white to gray crystalline marble-like limestone around point 22º25’20’’N 105º35’03’E at elev. of about 650 m a.s.l. Shrub to 2.5 m tall on steep rocky slope on shady humid valley between limestone hills. Not common.

18 October 2023. Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, Nguyen Van Ly, T. Maisak, AL2284.

Rubiaceae

Psychotria sp.

Bac Kan Province, Ba Be District, Nam Mau Commune, Nam Dai Village. Dry evergreen broad-leaved forest on steep rocky slopes composed by white to gray crystalline marble-like limestone around point 22º25’20’’N 105º35’03’E at elev. of about 650 m a.s.l. Shrub to 2.5 m tall on open rocky place. Common.

18 October 2023. Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, Nguyen Van Ly, T. Maisak, AL2289.

Rubiaceae

Mycetia sp.

Bac Kan Province, Ba Be District, Nam Mau Commune, Nam Dai Village. Dry evergreen broad-leaved forest on steep rocky slopes composed by white to gray crystalline marble-like limestone around point 22º25’20’’N 105º35’03’E at elev. of about 650 m a.s.l. Erect herb to 1.5 m tall on open rocky wet place. Flowers yellow. Not common.

18 October 2023. Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, Nguyen Van Ly, T. Maisak, AL2290.

Rubiaceae

Ixora sp.?

Bac Kan Province, Ba Be District, Nam Mau Commune, Nam Dai Village. Dry evergreen broad-leaved forest on steep rocky slopes composed by white to gray crystalline marble-like limestone around point 22º25’20’’N 105º35’03’E at elev. of about 650 m a.s.l. Shrub to 2.5 m tall on steep rocky slope. Not common.

18 October 2023. Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, Nguyen Van Ly, T. Maisak, AL2293.

Rubiaceae

Uncaria baviensis Tran

Hanoi Municipality.

N 3882, 26.08.1961

Rubiaceae

Uncaria sapaensis Tran

Lao Cai Prov.

N 6965, 26.06.1962

Rubiaceae

Argostemma sp.

Border of Lam Dong and Khanh Hoa provinces, Khan Le Pass, primary mixed montane forest with Pinus krempfii, Dacrydium and Dacrycarpus on shale at elevation of about 1600 m a.s.l. Lithophytic herb on shady wet stream rocks. Flowers white, anthers yellow. Locally common.

13 May 2024, L. Averyanov, Nguyen Van Canh, T. Maisak, AL3217.

FLORA OF VIETNAM

Rubiaceae

Lasianthus sp.

Son La Prov., Moc Chau Distr., Chieng Son comm., about 1 km to NE from Chieng Son village, around point 20°46’02.0N 104°37’03.1E. Remnants of primary broad-leaved evergreen forest on tops of hills composed with karstic highly eroded yellow-white limestone at elevation 1100-1050 m a.s.l. Shrub or small treelet 2-2.5 m tall in shady place. Flowers white. Not common.

29 September 2016 CPC 8119

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak, N.T.Son.

FLORA OF VIETNAM

Rubiaceae

Randia sp.

Quang Binh Prov., Tuyen Hoa Distr., Lam Hoa municipality, Hung village, around point 17°55’41”N 105°49’43”E.

Secondary shrubs along small river on flat alluvial valley between remnant limestone hills composed with highly eroded marble-like crystalline limestone at elev. About 100 m a.s.l. Shrub to 3 m tall. Flowers white, later yellowish. Common.

CPC 2629 1 May 2011

Coll.: L.Averyanov, P.K.Loc, N.Q.Hieu, P.V.The, N.T.Vinh.

FLORA OF VIETNAM

Rubiaceae

Mussaenda sp.

Quang Binh Prov., Tuyen Hoa Distr., Lam Hoa municipality, Hung village, around point 17°55’41”N 105°49’43”E.

Secondary shrubs along small river on flat alluvial valley between remnant limestone hills composed with highly eroded marble-like crystalline limestone at elev. About 100 m a.s.l. Scandent shrub to 3 m tall. Flowers yellow, inflorescence bracts white. Very common.

CPC 2630 1 May 2011

Coll.: L.Averyanov, P.K.Loc, N.Q.Hieu, P.V.The, N.T.Vinh.

FLORA OF VIETNAM

Rubiaceae

Hedyotis sp.

Quang Binh Prov., Tuyen Hoa Distr., Lam Hoa municipality, near Ca Tang bridge crossing Gianh River, around point 17°57’31”N 105°48’43”E. Secondary broadleaved evergreen forest along river valley composed with stratified soft shale limestone at elev. about 60 m a.s.l. Terrestrial and lithophytic herb in open wet places. Flowers white. Occasional.

CPC 2657 2 May 2011

Coll.: L.Averyanov, P.K.Loc, N.Q.Hieu, P.V.The, N.T.Vinh.

FLORA OF VIETNAM

Fam. Rubiaceae

Aidia sp.

N.Vietnam, Ha Tinh Prov., Huong Son Distr., Son Hong Municipality, around point 18є34'06''N, 105є11'40''E. Primary broad-leaved dry closed evergreen forest on very steep mt slopes of Khe Sinh stream canyon and along ridge composed with shale at elev. 600-1100 m a.s.l. near Laotian border. Shrub about 4 m tall. Fruits green. Not common.

No HAL 5301 11 May 2004

_______________________________________________

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

FLORA OF VIETNAM

Fam. Rubiaceae

Gardenia sp.

N.Vietnam, Cao Bang Prov., Trung Khanh Distr., Ngoc Khe Municipality, Pac Nga village, around point 22є54'59''N, 106є31'44''E, at elevation 700-750 m a.s.l. Secondary wet closed evergreen forest on steep rocky slopes of rocky ridges and mesae composed with light gray solid marble-like highly eroded crystalline limestone. Treelet 4-6 m tall on lower part of slope and in rocky valley. Flowers white, later yellowish, light fragrant. Occasional.

No HAL 5529 10 June 2004

_______________________________________________

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

FLORA OF VIETNAM

Rubiaceae

Randia sp.

Quang Tri Prov.

N. Tap, N. V. Trai

HLF 6014, 20.03.2006

FLORA OF LAOS

Rubiaceae

Prismatomeris sp.⁣

Quang Tri Prov.

N. Tap, N. V. Trai.

HLF 6097, 26.03.2006

Det. Averyanov, Leonid Vladimirovich at 06.07.2024

FLORA OF VIETNAM

Plants of Phong Nha - Ke Bang National Park

Fam. Rubiaceae

Mycetia sp.

Vietnam, Quang Binh Prov., Bo Trach Distr., Hung Trach Municipality, Khe Ba Tanh locality, around point 17є27'24''N, 106є23'14''E at elev. 600-700 m a.s.l. Slightly logged primary closed broad-leaved evergreen forest on slopes of mountains composed with shale, sandstone and occasionally granite, along rocky stream valley. Small undershrub 0.5 - 1 m tall. Fruits white. Common.

No HAL 6285 30 January 2005. Photo.

_______________________________________________

Collectors: L.Averyanov, P.K.Loc, P.V.The, A.Averyanova, N.T.Vinh, N.Q.Vinh, N.T.Binh.

FLORA OF VIETNAM

Fam. Rubiaceae

Adina sp.

Vietnam, Thua Thien – Hue Prov., Huong Thuy Distr., Duong Hoa Municipality, Huong Thuy forest enterprise territory, around point 16°12'50''N, 107°36'29''E, mountain and hill slopes composed with shale at elevation about 200 m a.s.l. Fractionally logged primary and secondary closed evergreen broad-leaved forest on steep stream slopes. Treelet 3-5 m tall on open rocky place along stream. Flowers white. Not common.

No HAL 8274 15 May 2005.

______________________________________________

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

FLORA OF VIETNAM

Rubiaceae

Lasianthus sp.

Son La Prov., Moc Chau Distr., Chieng Son comm., about 1 km to NE from Chieng Son village, around point 20°46’02.0N 104°37’03.1E. Remnants of primary broad-leaved evergreen forest on tops of hills composed with karstic highly eroded yellow-white limestone at elevation 1100-1050 m a.s.l. Shrub or small treelet 2-2.5 m tall in shady place. Flowers white. Not common.

29 September 2016 CPC 8119

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak, N.T.Son.

FLORA OF VIETNAM

Rubiaceae

Ophiorrhiza sp.

Cao Bang Prov., Bao Lac Distr., Hong An municipality, Mi Lung village. Primary broad-leaved and mixed humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 1500-1550 m a.s.l. around point 22°50’01.3’’N 105°50’05.7’’E. Terrestrial herb in shady wet place among mossy boulders. Flowers white, tube with dirty violet apex. Very common.

20 November 2014 CPC 7531

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz

FLORA OF VIETNAM

Rubiaceae

Ophiorrhiza sp.

Ha Giang Prov., Vi Xuyen Distr., Tung Ba municipality, Khau Ca NR. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 700-1150 m a.s.l. around point 22°50’43.9’’N 105°07’18.5’’E. ( Khau Ca forest station to travel b,a,c to Minh Son to Lung village to Khau Ca Foretbstation) Herb, occasional.

10 May 2015 CPC 7863

Coll.: N.Q. Hieu, N.T.Hiep, T.B. Ngan, C.Q. Ngan, D.K. Harder, C. P. Tuy, G.C.Pao

FLORA OF LAOS

Rubiaceae

Pavetta sp.?

Houphan Prov., Xon Distr., Nong Hua Pa Noi village, around point 20°13'02.1''N 103°24'23.3''E. Primary and secondary broad-leaved evergreen forest on very steep rocky mountain slopes composed by shaly limestone at elev. 1100-1200 m a.s.l.

Treelet about 5 m tall on open rocky slope. Very common.

LA-VN 1289 11 April 2015

Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham.

FLORA OF VIETNAM

Rubiaceae

Psychotria sp.

Ha Giang Prov., Vi Xuyen Distr., Tung Ba municipality, Khau Ca NR. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 700-1150 m a.s.l. around point 22°50’43.9’’N 105°07’18.5’’E. ( Khau Ca forest station to travel b,a,c to Minh Son to Lung village to Khau Ca Foretbstation) Shrub, occasional.

10 May 2015 CPC 7861

Coll.: N.Q. Hieu, N.T.Hiep, T.B. Ngan, C.Q. Ngan, D.K. Harder, C. P. Tuy, G.C.Pao

FLORA OF LAOS

Rubiaceae

Pavetta sp.?

Houphan Prov., Hem Distr., Khon Ngua village, around point 19°55'53.2''N 103°16'24.2''E. Secondary broad-leaved evergreen open dry forest with bamboo on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 700-950 m a.s.l. Shrub about 4 m tall on steep rocky slope. Flowers white. Common.

LA-VN 1488 15 April 2015

Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham, Somchanh Bounphanmy.

FLORA OF LAOS

Rubiaceae

Aidia sp.?

Houphan Prov., Hem Distr., Nacoc village, Puphadeng mountain, around point 20°09'52.6''N 103°10'19.4''E. Primary and secondary broad-leaved evergreen open dry forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 1000-1200 m a.s.l. Treelet 4-5 tall on mountain top. Fruits orange-red. Common.

LA-VN 1460 12 April 2015

Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham.

FLORA OF LAOS

Rubiaceae

Psychotria sp.?

Xiangkhouang Prov., Peak Distr., Oran village, around point 19°38’53”N 103°23’12”E. Primary and secondary broad-leaved evergreen dry forest on shale sandstone slopes and along ridge edge at elev. about 1750-1850 m a.s.l. Shrub 1-1.5 m tall. Fruits brightly red, glossy. Very common.

LA-VN 885 2 April 2015

Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham.

FLORA OF LAOS

Rubiaceae

Psychotria sp.

Xiangkhouang Prov., Peak Distr., Oran village, around point 19°38’53”N 103°23’12”E. Primary and secondary broad-leaved evergreen dry forest on shale sandstone slopes and along ridge edge at elev. about 1750-1850 m a.s.l.

Undershrub 1-2 m tall in shady wet place. Flowers light greenish. Common.

LA-VN 893 2 April 2015

Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham.

FLORA OF VIETNAM

Rubiaceae

Psychotria sp.

Ha Giang Prov., Bac Me Distr., Phieng Luong municipality, around Phieng Luong village. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 1100-1150 m a.s.l. around point 22°38’07.1’’N 105°19’22.1’’E. Undershrub 2 m tall on very steep rocky slope and on cliffs. Fruits brightly glossy green. Not rare.

13 November 2014 CPC 7390

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz

FLORA OF VIETNAM

Rubiaceae

Ophiorrhiza sp.?

Ha Giang Prov., Bac Me Distr., Phieng Luong municipality, around Phieng Luong village. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 1100-1150 m a.s.l. around point 22°38’07.1’’N 105°19’22.1’’E. Terrestrial herb or undershrub on very steep humid shady rocky slope at middle part of mountain slope. Flowers white. Common.

13 November 2014 CPC 7430

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz

FLORA OF LAOS

Rubiaceae

Aidia sp.?

Houphan Prov., Hem Distr., Na Puok village, Pu Tham Nhon mountain around point 20°10'00.0''N 103°24'37.0''E. Primary and secondary broad-leaved evergreen dry forest on very steep rocky mountain slopes composed by solid marble-like highly eroded limestone at elev. 1050-1150 m a.s.l. Treelet 4-6 m tall on the top of mountain. Flowers pale yellow. Common.

LA-VN 1311 11 April 2015

Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham.

FLORA OF LAOS

Rubiaceae

Aidia sp.?

Houphan Prov., Hem Distr., Na Puok village, Pu Tham Nhon mountain around point 20°10'00.0''N 103°24'37.0''E. Primary and secondary broad-leaved evergreen dry forest on very steep rocky mountain slopes composed by solid marble-like highly eroded limestone at elev. 1050-1150 m a.s.l. Treelet 4-6 m tall on the top of mountain. Flowers pale yellow. Common.

LA-VN 1311 11 April 2015

Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham.

FLORA OF VIETNAM

Rubiaceae

Canthium sp.?

Ha Giang Prov., Bac Me Distr., Phieng Luong municipality, around Phieng Luong village. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 1100-1150 m a.s.l. around point 22°38’07.1’’N 105°19’22.1’’E. Shrub 1.5-2 m tall along rocky ridge edge. Fruits red. Not common.

13 November 2014 CPC 7405

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz

FLORA OF VIETNAM

Rubiaceae

“Mussaenda with very big seeds”

Border area between Phieng Luong municipality (Ha Giang Prov., Bac Me Distr.) and Sinh Long municipalitiy (Tuen Quang Prov., Na Hang Distr.). Primary broad-leaved humid evergreen and mixed forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 1100-1170 m a.s.l. around point 22°38’24.3’’N 105°20’21.3’’E. Shrub about 3 m tall on slopes and on base of rocky limestone mountain. Fruits black. Common.

14 November 2014 CPC 7448

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz

FLORA OF VIETNAM

Rubiaceae

Mussaenda sp.

Ha Giang Prov., Bac Me Distr., Thuong Tan municipality. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 1200-1285 m a.s.l. around point 22°38’19.0’’N 105°17’06.5’’E. Scandent shrub about 2 m tall on mountain slope in secondary open forest. Fruits dark green. Not common.

16 November 2014 CPC 7493

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz

FLORA OF VIETNAM

Rubiaceae

Ophiorrhiza sp.?

Cao Bang Prov., Bao Lac Distr., Hong An municipality, Mi Lung village. Primary broad-leaved and mixed humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 1500-1550 m a.s.l. around point 22°50’01.3’’N 105°50’05.7’’E. Lithophytic and terrestrial herb to 1 m tall in shady humid place. Flower buds white. Common.

20 November 2014 CPC 7513

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz

FLORA OF LAOS

Rubiaceae

Psychotria sp.?

Xiangkhouang Prov., Kham Distr., Huad village, Phou tat Vinh mt., around point 19°32'31.6'N 103°39'40.4'E. Primary and secondary broad-leaved evergreen and semideciduous dry forest on very steep rocky slopes of limestone highly eroded mountains composed by solid marble like limestone at elev. 1200-1400 m a.s.l. Small undershrub on rocky mountain top. Flowers white, tepals with pinkish apices. Not common.

LA-VN 1028 4 April 2015

Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham.

FLORA OF LAOS

Rubiaceae

Canthium sp.?

Xiangkhouang Prov., Peak Distr., Khoang village, Pa Khao mt., around point 19°33’02.2’N 103°39’56.3’E.

Primary and secondary broad-leaved evergreen dry forest on solid rocky highly eroded limestone at elev. 1200-1450 m a.s.l.

Shrub 1 m tall on open cliff. Flowers white. Not common.

LA-VN 934 3 April 2015

Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Pheng Phengsintham.

FLORA OF VIETNAM

Rubiaceae

Psychotria sp.

Ha Giang Prov., Vi Xuyen Distr., Tung Ba municipality, Khau Ca NR. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 700-1150 m a.s.l. around point 22°50’39.4’’N 105°07’50.3’’E. Terrestrial herb 0.4- 0.5 m in tall, common.

08 May 2015 CPC 7777

Coll.: N.Q. Hieu, N.T.Hiep, T.B. Ngan, C.Q. Ngan, D.K. Harder, C. P. Tuy, G.C.Pao

FLORA OF VIETNAM

Rubiaceae

Psychotria sp.

Ha Giang Prov., Vi Xuyen Distr., Tung Ba municipality, Khau Ca NR. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 700-1150 m a.s.l. around point 22°50’39.4’’N 105°07’50.3’’E. Terrestrial herb 0.5 m in tall, Flower bud pink-violet, common.

08 May 2015 CPC 7782

Coll.: N.Q. Hieu, N.T.Hiep, T.B. Ngan, C.Q. Ngan, D.K. Harder, C. P. Tuy, G.C.Pao

FLORA OF VIETNAM

Rubiaceae

Mussaenda sp.

Ha Giang Prov., Vi Xuyen Distr., Tung Ba municipality, Khau Ca NR. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 700-1150 m a.s.l. around point 22°50’39.4’’N 105°07’50.3’’E. Rambling Shrub , 4 m in tall, flower yellow, common.

08 May 2015 CPC 7785

Coll.: N.Q. Hieu, N.T.Hiep, T.B. Ngan, C.Q. Ngan, D.K. Harder, C. P. Tuy, G.C.Pao

FLORA OF VIETNAM

Rubiaceae

Ophiorrhiza sp.

Ha Giang Prov., Vi Xuyen Distr., Tung Ba municipality, Khau Ca NR. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 700-1150 m a.s.l. around point 22°50’39.4’’N 105°07’50.3’’E. Terrestrial herb 0.5- 1 m in tall, common.

08 May 2015 CPC 7774

Coll.: N.Q. Hieu, N.T.Hiep, T.B. Ngan, C.Q. Ngan, D.K. Harder, C. P. Tuy, G.C.Pao

Rubiaceae

Schizomussaenda sp.

Cao Bang Prov., Bao Lam Distr., Yen Tho municipality, Cha Hai village, Phia Hai Mt. Secondary highly degraded broad-leaved evergreen forest on steep mountain slopes near mountain top at elevation 1300-1350 m a.s.l. around point 22°41’22.3’’N 105°34’43.5’’E. Tree 6-8 m tall on rather open grassy slope. Inflorescence bracts white. Very common.

27 November 2014 CPC 7674

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz

Rubiaceae

Schizomussaenda sp.

Cao Bang Prov., Bao Lam Distr., Yen Tho municipality, Cha Hai village, Phia Hai Mt. Secondary highly degraded broad-leaved evergreen forest on steep mountain slopes near mountain top at elevation 1300-1350 m a.s.l. around point 22°41’22.3’’N 105°34’43.5’’E. Tree 6-8 m tall on rather open grassy slope. Inflorescence bracts white. Very common.

27 November 2014 CPC 7674

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz

FLORA OF VIETNAM

Rubiaceae

Psychotria sp.

Son La Prov., Van Ho Distr., Van Ho comm., Hua Tat village, around point 20°46’21.7N 104°47’47.5E. Remnants of primary evergreen broad-leaved and mixed forest (with Pinus wangii) on very steep rocky slopes and on mountain tops composed with highly eroded karstic light gray marble-like limestone at elevation 1300-1350 m a.s.l. Treelet 4-5 m tall on rocky mountain top. Fruits dark green. Not common.

2 October 2016 CPC 8220

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak, N.T.Son.

FLORA OF VIETNAM

Rubiaceae

Ophiorrhiza sp.

Son La Prov., Van Ho Distr., Tan Xuan comm., A Lay village, around point 20°40’46.2N 104°39’49.6E. Primary evergreen broad-leaved forest on very steep rocky slopes and on mountain tops composed with red-brown sandstone at elevation about 1500 m a.s.l. Terrestrial herb in shady wet place. Flowers light pinkish. Not rare.

1 October 2016 CPC 8182

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak, N.T.Son.

FLORA OF VIETNAM

Rubiaceae

Paederia sp.

Son La Prov., Moc Chau Distr., Chieng Son comm., about 1 km to NE from Chieng Son Village, around point 20°46’02.0N 104°37’03.1E. Remnants of primary broad-leaved evergreen forest on tops of hills composed with karstic highly eroded yellow-white limestone at elevation 1150-1250 m a.s.l. Herbaceous vine 3-4 m long on exposed mossy rocks on mountain top. Not common.

27 September 2016 CPC 8063

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak, N.T.Son.

FLORA OF LAOS

Rubiaceae

Ixora sp.

Vientiane prov., Kasi distr., between Pa Chao and Nam Ken villages, Pa Chao Mt., around point 19°19'50.6''N 102°21'20.5''E.

Secondary broad-leaved evergreen dry forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 1000-1100 m a.s.l. Treelet 4-5 m tall on steep shady rocky slope. Flowers red. Occasional.

LA-VN 1703 26 March 2017

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

FLORA OF VIETNAM

Rubiaceae

Hedyotis sp.

Son La Prov., Moc Chau Distr., Chieng Son comm., Pha Luong village, Pha Luong Mountains. Primary evergreen broad-leaved and mixed forest with Pinus cernua on mountain tops and steep summit slopes composed with highly eroded red-brown sandstone at elevation 1400-1500 m a.s.l. around point 20°41’33.2N 104°37’37.0E. Terrestrial herb among exposed mossy rocks in open mossy rocky place near mountain top. Very common.

22 September 2016 CPC 7937.

Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak, N.T.Son.