7 eS 
474 LXXXV. ASCLEPIADEZ (BROWN). | Tenaris.. 
about 3 lin. long, erect or slightly recurving, subulate, slightly gibbous 
at their base, pinkish_—Schlechter in Journ. Bot. 1895, 339 ; He Schuin. 
in Engl. Pfl. Ost-Afr. C. 327, and in Engl. & Prantl, Pflanzenfam. iv. 
ii. 296. 7. Volkensii, K. Schum. in Engl. Pfl. Ost-Afr. C. 327, and in 
Engl. & Prantl, Pflanzenfam. iv. ii. 295, fig. 91. 
Mozamb. Dist. German East Africa: Karagwe and Urundi, Scott-Elliot, 
8211! 8374! Usagara, Last! Kirk ! Kilimanjaro; Himo River below Marangu, 
Volkens, 2183 (ex Schumann), and without precise locality, Smith ! 
48. ECHIDNOPSIS, Hook. f.; Benth. et Hook. f. Gen. Pl. ii. 781. 
Calyx 5-partite. Corolla rotate or rotate-campanulate, 5-lobed, 
fleshy. Corona arising from the staminal-column ; outer corona none or 
cupular or of 5 short lobes or pouches aliernating with the anthers ; 
inner corona of 5 fleshy lobes horizontally inflexed and incumbent on 
the backs of the anthers. Staminal-column 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 few, natives of Tropical Africa, Arabia, 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, more 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 the 
angles of the stem, whilst in the other Stapeliee they arise from the axils of ae 
tubercles; but throughout the tribe (with the exception of a few species ° 
Caralluma in which the umbels are terminal, or the flowers subaxillary), uM find 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 33-4 lin. in diam. : 
Flowers yellow . : ‘ : : : - 1. £. cereiformes. 
Flowers purple-brown, corona yellow . . . lL. E. cereiformis, var- 
Corolla 13-2 lin. in diam. ; flowers purple-brown . 2. E. nubica. 
Outer corona of 5 distinct lobes or small pouches, alter- 
nating with 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 . ° . . 8. EB. dammanmant. 
Stems 6-8-angled. 
Outer coronal-pouches attaining to about the level = 
of the inner corona, : : : . 4 E. Virchows. 
Outer coronal-lobes linear, ineurved-erect, over- : 
topping the inner corona g ; : . 5. E. somalensis. 
