236 THE JOURNAL OF BOTANY 



Fruit ovoid or ellipsoidal. 



Corolla-tube very slender, limb usually 

 much less than 1 cm. diam., fruit 



dehiscent 19. Monteiroi. 



Corolla-tube not sleuder, limb 1-5-2-5 cm. 

 or more in diam., fruit indehiscent 



20. arcuata. 

 Ovary, calyx and corolla all more or less densely 

 and continuously pubescent or hispidulous. 

 Leaves rough and hispidulous above... 21. tenuiflora. 

 Leaves smooth and glabrous, or nearly so, above. 

 Primary peduncles 6 cm. or longer ... 22. Holstii. 

 Primary peduncles 3 cm. or less... 23. ulugarensis. 

 dd. Calyx-lobes attaining 1*5 cm. or more in length. 



e. Corolla-limb narrow, rarely more than about 



1*5 cm. in diameter, which is usually much 



less than the tube. 



Leaves glabrous, except for a few spreading 



hairs on the veins ; secondary veins few, 



distant 24. conopharyngiifolia. 



Leaves hairy. 



Calyx-lobes subulate-setaceous 25. Soyauxii. 



Calyx-lobes flat, to 2-4 mm. broad. 



Calyx-lobes coloured or tinged with deep 



red, ovary 2-merous 26. erythrophylla. 



Calyx-lobes not coloured red, ovary 3-merous 



27. tristigmatica, 

 ee. Corolla-limb ample, attaining 3-5 cm. in dia- 

 meter, which is equal to or greater than the tube. 

 Leaves smooth and glabrous above, with fine 



yellowish conspicuous tertiary veins 28. Zerikeri. 

 Leaves hispidulous above, tertiary veins not 

 conspicuous. 

 Leaves elliptic or oblong, secondary nerves 

 rarely so many as 10 pairs, not glabrous 



below 29. elegans. 



Leaves broadly lanceolate, secondary nerves 



12-16 pairs, glabrous below 30. Jiispida. 



aaa. Calyx-lobes ample, oblong or ovate, exceeding 1 cm. x 6 mm. 



31. grandiflora. 



The species dealt with below are arranged in the order of their 

 appearance in the preceding key. 



1. Musssenda scabrida Wernham, sp. nov. Frutex ramulis 

 divaricatis pilis rigidiusculis ferrugineis decurvatis scabridis ; 

 foliis ellipticis ad obovatis 9-10 cm. x 5*5-7 cm., basi obtusis v. 

 rotundatis, brevissime acuminatis acutis, supra scabridis subtus 

 pnesertim in venis hispidulis, venis secundariis utrinque 10-12, 

 petiolo brevissimo hispido, stipulis deciduis basi lato, floribus . . . 

 fructu biloculari indehiscente ellipsoideo breviter rufo-hispido, 

 calycis limbo dentibus triangularibus brevibus acutis persistente 

 coronato. 



Lagos: Botanical Station, Millen, 95! Hb. Kew. 



Eeadily distinguished by the scabrid branchlets and upper 

 leaf -surf aces, and by the short triangular calyx- teeth. The rela- 

 tionship, in the absence of flowers, must remain in doubt. 



