Strophanthus.^ lxxxiv. apocyxace^ (staff). 169 



Sepals as \ox\^ as the t'orolla-tube or longer , 8. S. hispulus. 

 liather tinely and on the whole more simringly 

 liis})id ; corolla-tails not more than twice the 

 length of tlie tube; anthers exceeding the 

 shallow throat . . . . . . 9. 6'. huUenianvs. 



Leaves minutely scahridulous or quite glabrous. 

 Inflorescence distinctly pubescent. 



Leaves scahridulous . . . . . . 10. aS'. gracilis. 



Leaves quite glabrous. 



Sepals (at least the outer) with a broad base . 11. S. Preiissii. 

 Sepals narrow, oblong-spathulate . . .12. S. Barteri. 



Inflorescence quite glabrous, like the whole plant 

 (the pedicels rarely slightly pubescent in S. par- 

 viflorns). 

 Calyx 5-6 lin. long ; corolla-tube 6-7] lin. long. 

 Sepals very broad at the base ; supra-staininal 

 ])art of the corolla-tube campanulate; 

 corolla-tails 4—42 ^"' l^^'^^ • • • l'^* ^- hracteatus. 



Sepals mirrow ; supra-staminal i)art of the 

 corolla-tube cupular; corolla-tails about 

 i-2 in. long 

 Leaves with 7-9 distinctly i)rorainent 



secondary nerves on each side . . 14. S. erythroleucus. 



Leaves with 5-6 faint secondary nerves on 



each side ...... 15. S. parvfjforus. 



Calyx 2A-4 lin. long ; corolla-tube 3-3| lin. long. 

 Calyx 2i lin. long; leaves with 4 secondary 



nerves on each side .... 16. S. arnoldianus. 



Calyx 3^-4 lin. long; leaves with 11-12 



secondary nerves on each side . . 17. S. xvildem^nianus. 



) (Cylindric infra-staminal part of the corolla-tube much shorter than the widely 

 tubular, campanulate or funnel-shaped supra-staminal part. 

 Corolla-tube 1 in. long or more, rarely smaller, svipra- 

 staminal part widely campanulate or funnel-shaped. 

 Corolla-lobes tailed. 



Flowers generally on short leafless branches, 



rarely together with quite young leaves . 18. S. sarmenfosvft. 

 Flowers produced with the leaves. 



Leaves often ternate; corolla-tails very short . 19. S. ogovensis. 

 Leaves opjwsite ; corolla-tails long. 



Sepals subulate-acuminate ; corolla-tube 9- 

 13 lin. L)ng; lobes inclusive of the tails 



4^-5 in. long 2.0. S. verrucosus. 



Sepals lanceolate, acute ; corolla-tube 7 lin. 

 long; lobes inclusive of the tails 2-3 



in. long 21. S. peiersianvs. 



Corolla-lobes not tailed. 



Corolla (inclusive of the lobes) 3 in. long; throat 



scales short 22. S. £:ourmonfi. 



Corolla (inclusive of the lobes) 1.^, in. long ; throat 



scales filiform, up to 7 lin.'long . . ^ . 23. S. ecaudafus. 

 Corolla-tube 6-10 lin. long, supra-staminal part widely 

 tubular or narrowly funnel-shaped. 

 Leaves softly tomentose 24. 5. Schvchardti. 



