Cynanchum. | LXXXY. ASCLEPIADEZ (BROWN). 401 
both sides. Corona 5-lobed ; lobes rounded, undulate, but prolonged at 
the middle.—De Wild. & Durand, Relig. Dewevr. 159. 
South Central. Congo Free State: Mwanana-Toumbwe, Dewévre, 904, near 
Kabanga, Dewevre, 976 a. 
Stated to be allied to C.minutiflorum, K. Schum., but differing in the form of 
the coronal-lobes. It seems from the description to be very similar to that form of 
C. schistoglossum, which I originally described under the name of C. brevidens. 
18. C. heteromorphum, Vathe in Linnea, x1. 215. A glabrous 
twiner. Leaves spreading; petiole 5-7 lin. long; blade 14~2 in. long, 
and up to ? in. broad, ovate and acuminate or elliptic and acute, very 
variable, but all very broad near the base, which is more or less cordate, 
subrounded, or subauriculate. Peduncles rather shorter than the 
petioles, several-flowered, puberulous, as are also the pedicels and calyx. 
Corolla-lobes ovate, somewhat obtuse, minutely papillose within. Corona 
with acute lobes, furnished within sometimes with elongated ligules of 
the form of those of C. acutum, or sometimes with shorter and broader 
ligules somewhat like the exterior ones. 
Wile Land. Abyssinia: Plain of Hamedo, Schimper, 940. 
19. ©. pleianthum, XK. Schum. in Ann. Istit. Bot. Roma, vii. 
39. A perennial herb or shrub; branches slender, herbaceous and 
twining in the upper part. Leaves petiolate, herbaceous; petiole 
5-14 lin. long, pubescent with somewhat reddish hairs ; blade $-2? in. 
long, oblong or ovate-oblong, shortly and very acutely acuminate, 
broadly cordate at the base, pilose-pubescent on both sides, ciliolate, 
paler beneath. Umbels simple or 2 to several times forked, peduncu- 
late; peduncle 43-74 lin. long, minutely puberulous ; pedicels 2-3 lin. 
long, minutely puberulous. Sepals $ lin. long, oblong, acute, sub- 
glabrous. Corolla 12 lin. in diam. Corona 5-lobed, as long as the 
staminal-column, } lin. long; lobes ovate-triangular, acute. Style- 
apex slightly umbonate, somewhat 5-lobed. 
Nile Land. Somaliland: marshy places in Panure di Savati, Riva, 1533. 
20. ©. dentatum, XK. Schum. in Ann. Istit. Bot. Roma, vii. 39. 
A perennial woody herb, probably climbing above, subtomentose on the 
young parts, afterwards glabrescent. Leaves petiolate, herbaceous ; 
petiole 4—7 lin. long; blade 2—2 in. long, 4-14 in. broad in the basal 
part, ovate or ovate-oblong, acute, cordate at the base, minutely 
puberulous on both sides, ciliolate. Racemes axillary, few-flowered ; 
peduncle up to 44 lin. long, puberulous. Sepals } lin. long, oblong- 
lanceolate, acuminate, puberulous. Corolla about 3 lin. in diam. ; lobes 
obtuse. Coronal-lobes 14 lin. long, free nearly to the base, cuneate, 
3-toothed, a little longer than the staminal-column, which is contracted 
under the anthers into a stipe } lin. long. 
Wile Land. Somaliland: in dry wooded places between Sassaber and 
Carbaden, Riva, 844. 
VOL. IV. 2D 
