410 Lxxxv. ASCLEPiADE^ (brown). [Tylophorci. 



10. T. orthocaulis, K. Schvm. in Engl. Jahrh. xxiii. 235. Stems 

 several from a short rhizome, 2-2J ft. high, erect, straight or somewhat 

 curved, yourgest parts minutely puberulous, otherwise glabrous. Leaves 

 spreading; petiole 1 lin, long; blade IJ-SJ in. long,'lJ-4J lin. broad^ 

 lanceolate or linear, attenuate-acute at both ends, recurved at the 

 margins, glabrous. Peduncles axillary, •^fl—^^ in. long, longer than the 

 leaves, generally bearing about 3 fascicles of flowers ; pedicels at first 

 about 2J lin. long, elongating to 6-7 lin., filiform, minutely puberulous. 

 Sepals Jf lin. long, minutely puberulous. Corolla divided nearly to the 

 base ; lobes about 1\ lin. long, narrow, dark purple. Coronal-tubercles 

 adnate to the staminal-column near its base, slightly prominent, obtuse. 

 Staminal-column | lin. long. Follicles about IJ-lJ in. long, very 

 narrow, cylindric, acuminate at both ends. 



TTpper Guinea. AVitliout precise locality, AfzeJius, 138. 



Imj^erfectly known species. 



11. T. Adalinae, K. Schum. in Engl, d- Prantl, Pflanzenfam. 

 iv. ii. 28G. 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 he somewhat like T. sylvatica, Decne., 

 jind tlie above is all the description that is given of it. The description agrees (so far 

 as it goes) with Marsdenia profiisa, X. E. 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, solitai y 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. Jahrh. xvii. 148, t. yi.fig. 

 R — T. Stem twining ; branches slender, with a puberulous line down 

 one side. Leaves herbaceous: petiole 7-9 lin. long ; blade 2J-2| in. 

 long, f— 1-J in. broad, oblong, acuminate and very acute, acute at the 

 base, glabrous on both sides, sometimes variegated with white. 

 Inflorescence about G in. long; intercodes about Ij in. Jong ; branches 

 3-4 lin. long, bearing numerous flowers ; pedicels slender. Sepals J-j 



