394 LXXXV. ASCLEPIADEZ (BROWN). [ Cynanchum. 
Umbels or umbel-like cymes Jlaxly 5-12-flowered,; pedunculate ; 
peduncles 2-6 lin. long, lateral, puberulous on one side; pedicels 
slender, thread-like, 3-1 in. long, puberulous. Sepals ? lin. 
long, 4-4 lin. broad, oblong, acute, glabrous. Corolla when in bud 
oblong-ovoid, obtuse, with an apiculus, 5-lobed nearly to the base ; 
lobes 2} lin. long, ? lin. broad, oblong, obtuse, apiculate, quite glabrous. 
on both sides, not ciliate, apparently green or greenish. Corona twice 
as long as the staminal-column, 2 lin. long, tubular, 10-toothed ; 5 of 
the teeth about ? lin. long, more or less bifid or irregularly toothed at 
the apex, the other 5 shorter and narrower, subulate, not toothed at 
the apex, all the teeth strongly incurved and forming a dome over the 
column, with very narrow fissures between the teeth, no teeth or 
appendages within the tube. Staminal-column 1 lin. long; anthers. 
subsessile, subquadrate, with ovate acute appendages, inflexed over the: 
truncate apex of the style. 
Upper Guinea. Lagos: Papalayito, Millen, 48 (1895 Coll.) ! 
5. C. Mannii, V. 2. Br. Stem twining, slender, glabrous or with 
one puberulous line when young. Leaves spreading, thin; petiole }—1 
in. long; blade 14-3 in. long, 4-1} in. broad, oblong-ovate on elliptic, 
abruptly acuminate, cordate or subsagittate at the base, 5-nerved,. 
glabrous. Flowers small, in compact umbelliform racemes on slender 
lateral peduncles 3-11 in. long; bracts very minute; pedicels 2-3 lin. 
long, puberulous on the inner side. Sepals 4-3? lin. long, ovate, obtuse, 
minutely ciliate. Corolla probably rotate, 5-lobed nearly to the 
base ; lobes 1}-1} lin. long, oblong-lanceolate, obtuse, suberect, glabrous.. 
Corona 1 lin. long, tubular for half its length, then 10-lobed, the 
alternate lobes shorter, channelled and crisped, the larger ones thick 
and fleshy, more or less crisped, but channelled only at their base, with 
slightly recurving tips. Anther-appendages erect, fleshy, lanceolate,. 
acute ; overtopping the conical apex of the style and rising to the level 
of the shorter lobes of the corona.—C. acuminatum, K. Schum. 1n 
Engl. & Prantl, Pflanzenfam. iv. ii. 2532 Vincetowicum Mannit, Scott- 
Elliot in Journ. Linn. Soc. xxx. 938. Cynoctonum acuminatum, Benth. 
in Hook. Niger Fl. 453; Walp. Ann. iii. 52. 
Upper Guinea. Sierra Leone: Bagru River, Mann! Bumban to Port 
Lokko, Scott-Elliot, 5672! near Kabusa, Scott-Elliot. 5479! and without preci-e 
locality, Don ! : 
The name C. acuminatum is preoceupied, and specimens received from Berlin, 
named C. acuminatum by Dr. Schumann, do not belong to this species, but to C.. 
Adaline, K. Schum., so that I am uncertain what plant is intended by C. acumina- 
tum, K. Schum., the description given being insufficient. Specimens from Cameroons. 
and French Congo are referred to C. acuminatum, K. Schum., by Schlechter (West-afr. 
Kautschuk Exped. 309), some of which probably belong to @. Adaline, K. Schum. 
6. C. Adaline, K Schum. in Engl. d Prantl, Planzenfam. iv. 0. 
253. A glabrous twiner, with slender stems. Leaves spreading, thin ;. 
petiole 1-2} in. long; blade 14-4 in. long, 3-2 in. broad, oblong-ovate 
or elliptic-ovate, cuspidate-acuminate into a blunt mucronulate point.. 
