440 Lxxxv. ASCLEPiADE^ (browji). [Ceropegia. 



fleshy, narrowly lanceolate, acute, ciliate on the margins, sparsely 

 pubescent on the midrib beneath, glaucous-green, paler beneath. 

 Flowers 1-3 together at the nodes, with occasionally a deflexed 

 peduncle up to J in. long bearing 2-3 flowers ; pedicels 1 J lin. long, 

 sHghtly pubescent. Corolla about G lin. long, pubescent and of a lurid 

 purple-brown outside, glabrous and blackish-purple inside ; tube about 

 4-5 lin. long, curved or oblique, 2 lin. in diam. at the inflated-ovoid 

 basal half, constricted below the short funnel-shaped mouth ; lobes 

 Ih lin. long, free, slightly spreading, tapering from a detoid base to a 

 short linear point, slightly keeled down the face. Outer corona cam- 

 panulate, about f lin. long, subtruncate, obscurely 5-toothed, blackish - 

 purple ; inner coronal-lobes barely J lin. long, incumbent on the backs 

 of the anthers and shorter than them, dorsally adnate to the outer 

 corona. — Hiern in Cat. Afr. PI. Welw. i. GOG. 



liO'wer truinea. Angola : Huilla ; in a rocky busby place near Lopoll i, 

 o200 ft., Welwitsch, J-267 ! 



3. G. nigra, xV. E. Br. in Keio Bidletin, 1895, 261. Stem twining, 

 pubescent. Leaves spreading; petiole J-J in. long; blade |-1J in. 

 long, J-1 in. broad and probably larger, ovate or elliptic-ovate, acute or 

 acuminate, cordate or truncately rounded at the base, both sides with a 

 short and rather harsh pubescence, but more sparse above. Cymes 

 umbel-like, suLtsessile, several-flowered ; pedicels 4-G lin. long, pubescent. 

 Sepals i^~2 lin. long, subulate or lanceolate-subulate, pubescent. 

 Corolla-tube 5-6 lin. long, curved above the somewhat oblique in- 

 flated-ovoid base, which is about IJ lin. in diam., narrowed above, 

 shortly funnel-shaped at the mouth, pubescent outside, glabrous inside 

 and striate with black in the upper part ; lobes widely spreading, with 

 free tips, 2 J lin. long, 1| lin. broad at the base, deltoid-ovate, obtuse, 

 with recurved margins, pubescent on the back, very minutely puberulous 

 on the inner face at the base and around the mouth of the tube, black 

 in the dried state. Outer coronal-lobes 1- lin. long, erect, rectangular, 

 bifid, with slightly incurved teeth, pallid; inner coronal-lobes IJ lin. 

 long, filiform, erect, with incurved penicillate tips, blackish. 



Upper y-uinea. Bs the River Niger, ^ai^ie .' 



In the dried state the lobes and raouth of the corolla-tube are black, but as the 

 same parts of C. krohoeiisis, N. E. Br., are stated to be " metallic blue-green " 

 when alive, it is probable ti)at C. nigra is also of that colour in the living state, the 

 two species beiny very similar. 



4. C kroboensis, X. E. Br. Stem twining, pubescent, about 1 

 lin. thick; internodes 8-5 in. long. Leaves spreading; petiole 1-1 J in. 

 long, pubescent; blade lJ-2-^- in. long, %-l\ in. broad, cordate- ovate, 

 shortly acuminate, thinly covered with rather long jointed hairs on the 

 upper side, minutely pubescent beneath, ciiiolate. Cymes lateral at the 

 nodes, subsessile or very shortly pedunculate, many-.flowered ; very 

 often a branch originates ?vt the same node ; peduncles 0-2 lin. long, 

 pubescent ; bracts minute, subulate, pubescent ; pedicels 5-7 lin, long, 

 slender, minutely pubescent, thickening and growing to about J in. long 



