Oxystelma.'] Lxxxv. asclepiade.*: (brown). 383 



convex, not exceeding the anthers. Follicles ]i^-2 in. lon^, about 

 b lin. thick, not inflated, lanceolate, acute, glabrous. Seeds very small, 



1 lin. long or less, ovate, biconvex, very narrowly margined, grey. 



0. Alpini, Decne. in DC. Prod. viii. 543 ; Schweinf. PI. Nilot. 29. 

 O. (Egyptiacum, Decne. in DC. Prod, viii, 504, name only. 0. Secamone 

 K. Schum. in Engl. & Prantl, Pflanzenfam. iv. ii. 229. Periploca Seca- 

 mone, Del. Fl. ^gypt. Illust. 56 (ex Decaisne), not of Linn. 



wile Xiand. Abyssinia: Agow ; banks of the Kiver Awarra, near Mawerr 

 3300 ft,, Schimper, 2305 ! 



Also in Egypt. 



A form with acute, non-inflated follicles also occurs in India, but tlie seeds are 

 larger, about 1^ lin. long. The quotation by Decaisne of Secamone, Alpinus, PI. 

 .Egypt. 53, with fig., and ed. Vesling (1640), 133 and 134 fig., and ed. (1735), iVi, t\ 

 48, is altogether wrong for the genus Oxystelma, as the plant there figured is 

 Leptadenia heterophylla. 



2. O. bornouense, JR. Br. in Denham <0 Clapp. Trav. in Xm-th 

 and Central Africa, App. 239. Characters as in 0. esculentum, var. 

 Alpini except : — petiole of the leaves 3-9 lin. long ; blade 1-2^^ in. long, 

 ^-1 in. broad, usually elongated oblong-ovate or deltoid-ovate^ acut^ or 

 acuminate, cordate or cordate-hastate at the base, with rounded lobes, 

 or occasionally lanceolate or oblong, acute or obtuse, apiculate, rounded 

 oi* subtruncate at the base, glabrous. Corolla 1-1;^ in. in diam., the 

 whole interior veined with dark purple except the tips of the lobes. 

 Follicles solitary (always?), 1^-2 in. long, |-1 in. in diam., very inflated, 

 ovoid or ovoid-oblong, very obtuse, glabrous. Seeds \\-2\ lin. long, 

 flattened, with a broad firm wing, brown. — 0. hornouense, R. Br., and 

 0. seneqalense, Decne. in DC. Prod. viii. 543 ; Engl, k Prantl, Pflan- 

 zenfam.^iv. ii. 228, fig. 66, E. 



Upper Guinea. Senegal, Roger ! Perrottet, 468 ! Senegambia, Heudelot, 

 423 ! Lagos : Abeokuta, Irving, 27 ! Interior of Western Lagos, Rowland .' Niger 

 Territory : Nupe, common on the river-banks, Barter, 1131 ! Bonui, Oudney, 6 I 



Wile Iiand. White Nile, at Om Madeb, /ScAwe/n/wr^A, 982 ! Mittu : Moolo, 

 Schiveinfurth, 2850 ! Somaliland : Webi Abdallah, Keller, 103 ! near Barcif, Rita, 

 691 (ex iSchumann). 



Tbis was separated from 0. esculentum by R. Brown on accoifnt of the different 

 leaves and inflated follicles, but the typical Indian O. esculentum has inflated 

 follicles, as originally described by Linnaeus. The flowers, however, of O. bomouense 

 are much more veined with purple, and the seeds very much larger, much more 

 broadly winged, different in colour, and altogether different in character from those 

 -of 0. esculentum. 



26. SARCOSTEMMA, R. Br. ; Benth. et Hook. f. Gen. 

 PI. ii. 763. 



Calyx 5-partite. Corolla 5-lobed to the base, rotate or rotate- 

 campanulate ; lobes overlapping to the left in bud. Corona double, 

 arising from the staminal-column ; outer corona annular or cup- 

 shaped, often pentagonal, truncate or shortly lobed ; inner corona ot 5 

 erect fleshy compressed or keeled lobes, with tlieir ba.<v'il jwirt 



