410 LXXXV, ASCLEPIADEE (BROWN). [ Tylophora.. 
10. T. orthocaulis, A. Schum. in Engl. Jahrb. xxiii. 235. Stems. 
several from a short rhizome, 2-24 ft. high, erect, straight or somewhat 
curved, yourgest parts minutely puberulous, otherwise glabrous. Leaves. 
spreading ; petiole 1 lin. long; blade 14-2? in. long,*14—4$ lin. broad, 
lanceolate or linear, attenuate-acute at both ends, recurved at the 
margins, glabrous. Peduncles axillary, 34-43 in. long, longer than the: 
leaves, generally bearing about 3 fascicles of flowers; pedicels at first 
about 24 lin. long, elongating to 6-7 lin., filiform, minutely puberulous. 
Sepals J lin. long, minutely puberulous. Corolla divided nearly to the 
base ; lobes about 14 lin. long, narrow, dark purple. Coronal-tubercles 
adnate to the staminal-column near its base, slightly prominent, obtuse. 
Staminal-column $ lin. long. Follicles about 14-14% in. long, very’ 
narrow, cylindric, acuminate at both ends. 
Upper Guinea. Without precise locality, Afzelius, 138. 
Imperfectly known species. 
11. T. Adaline, K. Schum. in Engl. & Prantl, Pflanzenfam. 
iv. ii. 286. Leaves membranous, with a closed sinus and overlapping 
basal lobes. Branches of the inflorescence leafless. 
West Tropical Africa. 
I have not seen this plant, which is said to be somewhat like 7’, sylvatica, Decne.» 
and the above is all the description that is given of it. The description agrees (so far 
as it goes) with Marsdenia profusa, N, KE. Br. 
34. ONCOSTEMMA, K. Schum. in Engl. Jahrb. xvii. 148. 
Calyx 5-partite. Corolla campanulate-rotate, deeply 5-lobed ; lobes 
overlapping to the left in bud. Corona double; outer of. 5 fleshy lobes 
united into a ring at their base, arising from the base of the corolla, 
opposite the corolla-lobes and close to the thick fleshy annular slightly 
lobed inner corona, which is adnate to the staminal-column. Staminal- 
column arising from the base of the corolla; anthers short, connivent 
over the apex of the style. Pollen-masses subhorizontal, minute, sub- - 
globose, solitary in each anther-cell, attached in pairs by short caudicles 
to the pollen-carriers. Style flattened at the apex, with a slightly 
convex or bilobulate centre——A twining shrub. Leaves opposite. 
Inflorescence axillary (sublateral ?), pedunculate, lax, dichotomously 
cymose, passing into subsessile abbreviated racemes; flowers small. 
Species 1, endemic, unknown to me. 
1. O. cuspidatum, K. Schum. in Engl. Jahrb. xvii. 148, t. vi. fig- 
Rk—T. Stem twining; branches slender, with a puberulous line down 
one side. Leaves herbaceous: petiole 7-9 lin. long ; blade 24-2} in- 
long, {-1} in. broad, oblong, acuminate and very acute, acute at the 
base, glabrous on both sides, sometimes variegated with white. 
Inflorescence about 6 in. long; internodes about 12 in. Jong ; branches 
3-4 lin. long, bearing numerous flowers; pedicels slender. Sepals 4-3 
