474 Lxxxv. ASCLEPiADE^ (brown). [l^eua^ns. 



about J lin. long, erect or slightly recurving, subulate, slightly gibbous 

 at their base, pinkish. — Schlechter in Journ. Bot. 1895, 339 ; K. Schuin. 

 in Engl. Pfl. Ost-Afr. C. 327, and in Engl. & Prantl, Pflanzenfam. iv. 

 ii. 296. T. Volkensii, K. Schum. in Engl. Pfl. Ost-Afr. C. 327, and in 

 Engl. & Prantl, Pflanzenfam. iv. ii. 295, fig. 91. 



XVXozazub. Xlist. Gennan East Africa : Karagwe and Urundi, Scott-Elliot, 

 8211 ! 8374 ! Usagiira, Last ! Kirk ! Kilimanjaro ; Himo River below Marangu, 

 Volkens, 2183 (ex Schumann), and without precise locality. Smith ! 



48. ECHIDHOPSIS, Hook. f. ; Benth. et Hook. f. Gen. PI. ii. 781. 



Calyx 5-partite. Corolla rotate or rotate-cam panulate, 5-lobed, 

 fleshy. Corona arising from the staminal-column ; outer corona none or 

 cupular or of 5 short lobes or pouches alternating with the anthers ; 

 inner corona of 5 fleshy lobes horizontally inflexed and incumbent on 

 the backs of the anthers. Staminal-coiumn arising from the base of 

 the corolla, very short ; anthers horizontally incumbent on the top of 

 the subtruncate style. Pollen-masses horizontal, solitary in each anther- 

 cell, united in pairs to the minute pollen- carriers. Follicles not seen. — 

 Leafless succulent plants, with stout cylindric several-angled branching 

 stems ; angles tessellately divided by impressed transverse lines into 

 very obtuse and minutely apiculate tubercles, the apiculus being a rudi- 

 mentary leaf. Flowers small, in fascicles (sometimes solitary by abor- 

 tion) along the grooves between the angles, and mostly towards the apex 

 of the stems. 



Species iew, natives of Tropical Africa, Arabin, and Socotra. 



'Echidnopsis cannot be technically distinguished from Caralluma by its floral 

 structure, but as all the species are well characterised by their peculiar many- 

 angled tessellate stems, it is perhaps, moi-e convenient, to keep them generically dis- 

 tinct. Prof. Schumann states in the Monatsschr. fiir Kakteenkunde, 1893, iii. 98, 

 that Echidnopsis is distinguished by the flowers arising in the grooves between tlie 

 angles of the stem, whilst in the other Stapeliece tliey arise from the axils of the 

 tubercles ; but throughout the tribe (with the exception of a few species of 

 Caralluma in which the umbels are terminal, or the flowers subaxillary), I tind that 

 they always arise from the groove between the angles, although usually a little to 

 one side of the middle of the channel. 

 Outer coronal-lobes or pouches none. 

 Corolla 3^-4 lin, in diam. 



Flowers yellow . . . . . . . 1. E. cereiformift. 



Flowers purple-brown, corona yellow . . . 1. E. cereiformis^ var» 



Corolla 1^-2 lin. in diam. ; flowers purple-brown . 2. E. nuhica. 

 Outer corona of 5 distinct lobes or small pouches, alter- 

 nating witii the inner coronal -lobes. 

 Stems 8-10-angled ; outer coronal-lobes or pouches 

 spreading or deflexed, not attaining, to the level 

 of the inner corona . . . . . . 3. JS'. dammanniana. 



Stems 6-8-angled. 



Outer coronal -pouches attaining to about the level 



of the inner corona . . . . . 4. E. Virchowii. 



Outer coronal-lobes linear, incurved-erect, over- 

 topping the inner corona . . . . h. E. somalensis. 



i 



