Tylophora.'] 



LXXXV. ASCLKPIADE.E (bROWN). 



4(>5 



between the bases of the petioles or axillary, usually consisting of 

 slender, simple or branched cymes of flower-clusters or short racemes, 

 or occasionally the flower-clusters are sessile at the nodes of the stem ; 

 flowers usually small. 



Species many, widely distributed in tlie tropical and subtropical regions of the 

 Old World. 



In some species I have failed to find any caudicles to the pollen-masses ; they 

 are always very slender. I have not found the pollen-masses pendulous as rejir©- 

 sented in Engler & Pmntl, Ptlanzenfinn., but frequently their longer axis lies hori- 

 zontally in the anther-cell so that haJf of the mass is above and half belo^v its 

 attachment to the caudicle. 



Stem erect 10. T. orthocaulis. 



Stem twining. 



Leaves more or less cordate at the base. (See also 



T. anfracta, in which the leaves are sometimes 



cordate at the base.) 



Corolla-lobes 2-2i lin. lonj^: and as much \\\ 



breadth. 



Starainal-column widened at the base ; coronal- 



tubeicles entirely adnate, ovoid . . .1. T.conspicna. 



Staminal-column not widened at the base; 

 coronal-tubercles minute, radiating, Hat 

 above, convex beneath . . . . 2. T. 



Corolla-lobes f-1 lin. long, longer than broad. 

 Cyme-branches glabrous. 



Leaves subcoriaceous, drying brownish . . 3. 



Leaves thin, drying green . . . .4. 



Cyme-branches pubescent ; leaves thin , . 5. 

 Leaves rounded or cuneate at the base. 



Flower-clusters or very short racemes scattered 

 along the axis of the inflorescence or its 

 branches ; corolla-lobes 1^-2 lin, long, not 

 linear. 

 Leaves 2— 4i in. long ; pedicels 3-5i lin. long, 

 slendex", bnfc scarcely hair-like. 

 Inflorescence 2-3 in, long, not zigzag ; corolla 



about 3 lin. in. dlam. . . . .6. 



Inflorescence 6-7 in. or more long, zigzag ; 



corolla 4^-5 lin. in diam, . . .7. 



Leaves 1-li in. long ; pedicels 6-8 lin. long, 



hair-like ....... 8. 



Flower-clusters sessile at the nodes of the stem ; 



corolla-lobes 2h lin. long, lii»ear . . .9. 



data. 



T. cameroonica. 

 T. apicidata. 

 T. si/lvatica. 



T. ohlo)iga. 



T. anfracta. 



T. tenuipedunculata. 



T. steyioloha. 



1. T,' conspicua, JS'. E.Br, in Kew IhdUtin, 180"), 'i:^X. A large 

 clim.ber. Stem hollow, finely pubescent. Leaves spreading; petiole 

 |-2f in. long, tomentose ; blade 'I^-l in. long, Ij-^^i in. broad, oblong 

 or obovate-oblong, shortly acuminate or cuspidate, cordate at t)ie base, 

 pubescent on the principal veins on both sides, otherwi.se glabrous; 

 basal lobes broadly rounded, separated by a sinus J-J in. ileep. 

 Inflorescence lateral at the nodes or subaxillary, 1 i-:5 in. long, piibf'^- 

 <;ent, consisting of a simple axis bearing 2-8 ascending, denselv s.'veral- 



VOL. IV. 



