Cryptosepalum staudtii Harms

Van Der Burgt, Xander M., Poundje, Maguy & Sene, Olivier, 2014, Cryptosepalum korupense Burgt, sp. nov. (Leguminosae, Caesalpinioideae), a tree species from the Southwest Region in Cameroon, Adansonia (3) 36 (1), pp. 73-81 : 80-81

Cryptosepalum staudtii Harms

( Fig. 5 )

Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 26: 267 (1899).

— Typus: Cameroon. Southwest Region, Johann Albrechtshöhe (Lake Barombi-Mbo near Kumba ), young fruits, III.1897, Staudt 907 ( A, BM, K, PH).

OTHER MATERIAL EXAMINED. — Nigeria. Sine loc., 1930, Rosevear s.n. (K). — Cameroon. Mbalmayo, fr., 5.X.1951, Endagade SRFK 1515 (YA) ; route Mbalmayo-Ebolowa, fr., 11.IV.1949, Letouzey SRFK 1248 (P[P00187937], YA) ; same loc., sterile, 11.IV.1949, Letouzey SRFK 1249 (P[P00187938], YA) ; km 78 route Mbalmayo-Ebolowa, fr., 25.VIII.1950, Letouzey SRFK 1442 (P[P03641255], YA) ; colline au SE de Ndengué, 15 km S d’Ebolowa, sterile, 26.III.1970, Letouzey 10244 (P[P00187943], YA) ; près Bitsokmam-Eyou, à 12 km E de Ngoulemakong , sterile, 13.VI.1972, Letouzey 11419 (P[P00187931], YA) ; 3 km environ de la scierie Sieba, au fond du SSO près Mbalmayo , sterile, 27.II.1953, Médou SRFK 1831 (P[P00187940], YA) ; près carrefour de Mengong sur route Sangmélima-Ebolowa, sterile, 26.III.1981, Meijer 15293 (MO, WAG, YA) ; Mbalmayo, fr., 1952, Mpom SRFK 1674 (YA) ; same loc., fl., fr., 1952, Mpom 1793 (P[P00187934, P03641272], YA) ; N’Koemvone, 14 km on the road from Ebolowa to Ambam , 2°49’N, 11°08’E, fl., 17.XI.1975, J. de Wilde 7968 (BR, K, P[P00187930], WAG, YA). — Equatorial Guinea. Inselberg de Akoak Ebanga, à 1 h de marche du village de Ngong Mocomo , à 10 km de Nsork , 1°04’N, 11°12’E, alt. 580 m, 7.VIII.1990, Parmentier & Nguema 30 (BRLU; not seen) ; Makonanam, alt. 450 m, 25.III.1908, Tessmann 307 (K). — Gabon. Ogooué-Ivindo, Lopé Reserve , Petit Okano , pont de la Nké , 0°02’S, 11°53’E, fl., 10.X.1983, Floret & Louis 1797 (LBV, P[P00388094], WAG) ; Ogooué-Lolo, Région de Lastoursville , fl., 1929- 1931, Le Testu 7501 (K, P[P03641252, P03641253, P03641254]) ; Ogooué-Ivindo, Lopé Reserve , 500 m further downstream where the Koumbien meets the Lopé river, 0°7’S, 11°37’E, fl., 25.III.1998, Leal 49 (WAG) ; Lopé Reserve, 0°25’S, 11°30’E, alt. 200 m, fl., 25.IX.1990, White 130 (LBV, MO, WAG) ; Lopé Reserve , headquarters of ECOFAC, 0°15’S, 11°40’E, alt. 200 m, fl., 21.IX.1993, White 1062 (LBV, MO, SEGC, WAG) ; Lopé Reserve , near biological station SECG, 0°12’S, 11°37’E, alt. 280 m, fr., 25.XI.1995, J. de Wilde 11437 (LBV, WAG) ; Lopé Reserve , 11 km SSE de gare Lopé , 0°12’S, 11°38’E, sterile, 26.X.1987, Wilks 1645 (MO, WAG) ; Lopé Reserve , sterile, 1985, Williamson 61 (K).

DESCRIPTION. — See Aubréville (1968, 1970); Vivien & Faure (2011).

DISTRIBUTION. — Cryptosepalum staudtii occurs in Nigeria (possibly), Cameroon, Equatorial Guinea and Gabon ( Fig. 5 ). The exact locality where the only Nigerian specimen, Rosevear s.n., was collected is uncertain; this could be Nigeria or the Southwest Region in Cameroon. The species is common around the towns of Mbalmayo and Ebolowa in Cameroon, and in the Lopé Reserve in Gabon ( White & Abernethy 1996).

HABITAT. — Rainforest and gallery forest, 200-700 m.

CONSERVATION STATUS

Cryptosepalum staudtii is here assessed as Least Concern ( IUCN 2013), because it occurs in three or four countries and is known from at least 23 collections. The extent of occurrence is 94 900 km 2.

Figures

FIG. 5. ― Distribution of Cryptosepalum staudtii Harms.