Pleioceras.] lxxxiv. apocynace^ (staff). 1(J7 



to subovate, acuminate (often abruptly), rounded or acute at the base, 

 ^^-6 in. long, H--i in. broad, glabrous except t\\e delicately and 

 minutely tomentose nerves below ; secondary nerves G-O on each side ; 

 petiole up to 2 lin. long. Panicle short, wide, greyish, minutely tomen- 

 tose when young, at length glabrescent, branches spreading ; peduncle 

 up to Ih in. long; bracts small, lanceolate or subulate; pedicels 

 slender, up to 2 lin. long. Calyx scarcely 1 lin. long ; sepals broad- 

 ovate, rounded, minutely tomentose; intracalycular glands small. 

 Corolla papillosely-pubescent without; tube 1 J lin. long ; lobes ovate- 

 oblong, obtuse ; episepalous scales replaced by a minute tubercle ; 

 epipetalous scales thin, linear, 2-horned, glabrous ; a pair of filiform, 

 more or less divided appendages on each side of each stamen. Anthers 

 j lin. long. 



Upper Guinea. Cauieroons : Bipiiide, Zenker, 1204a ! 1224 ! 1954 ! 23U7 ! 



4 P. Gilletiiy Stwpf. Flowering branches scaberulous, at length 

 rough with numerous small prominent lenticels. Leaves oblong or 

 elliptic-oblong, shortly and acutely acuminate, acute or subacute at the 

 base, about o in. long, 1 J in. broad, subcoriaceous, glabrous, dull green ; 

 secondary nerves r)-G on each side, faint ; petiole 2-3 lin. long. 

 Panicles many-flowered, densely and minutely hispidulous; peduncle 

 about .V in. long ; bracts minute, ovate, acute ; pedicels up to 1 lin. 

 long. Calyx 1 lin. long, puberulous ; sepals broad-oblong, obtuse, 

 margins hyaline, ciliolate. Corolla very finely papillose without ; tube 

 slightly over 1 lin. long ; lobes oblong, obtuse, 2 J lin. long, each with a 

 fleshy subquadrate scale above the base ; episepalous scales ( > ; a solitary 

 filiform appendage on each side of each stamen, about 2 lin. long, 

 divided into 3-4 fine clavellate segments. Staminal column over 1 

 lin. long ; filaments as long as the anthers. Ovary glabrous. 



Xio^irer Guinea. Lower Congo : Kisantu, Qillef, 537 ! 



Planchoii described (Prod. Apocyu. 108-110) the follicles and seeds of a plant 

 c-ollected hy Ballay in Gaboon and snpposed to be a Wrifjhiia. The follicles are 

 said to reach more than 2 ft. in length, and to be slender, brown or blackish, striate 

 without, yellow within ; the seeds are described as being lanceolate, acute at the 

 base, attenuate at the apex into a plumose awn about 5 lin. long, imle brown and 

 prominently striate, enclosing a scanty endosi)erm and an embryo, the cotyledonn 

 of which are complicate and S shaped in cross section. The presence of a plumose 

 terminal awn excludes this plant from Phioceras as well as from Wright in, and 

 the folding of the cotyledons from Strophantluis. 



30. STHOPHANTHUS, DC. ; Benth. et Hook. f. Gen. PI. ii. 714. 



Calyx middle-sized to large, herbaceous, rarely scnrious, with few to 

 many glands at the base within; sepals T), imbricate, sometimes foli- 

 aceous. Corolla funnel-shaped or campanulate with a short or long 

 cylindric basal tube ; mouth with paiied appemlages alternating with 

 the lobes ; lobes 5, acuminate or produc-ed into very long filiform tails, 



