Tenaris. | ASCLEPIADE& (Brown). 797 
3. T. chlorantha (Schlechter in Engl. Jahrb. xx. Beibl. 51, 44) ; 
tuber and stem as in L. rubella, but usually 1-1} ft. high, sometimes 
branched at the upper part and leafy from below the middle to the 
apex ; leaves in 7-12 pairs, erect or ascending, the lower 2-3 in. 
long, the upper shorter, }-3 lin. broad, linear-filiform or linear, 
acute, glabrous ; flowers usually in fascicles of 3-7 at the 5-10 
uppermost nodes ; peduncles 0-4 lin. long ; pedicels 34-7 lin. long, 
very slender, glabrous; sepals }—} lin. long, lanceolate, acute, 
glabrous ; corolla glabrous ; tube }—3 lin. long, campanulate ; lobes 
24-3} lin. long, 4 lin. broad at the base, } lin. broad above, linear- 
filiform, with recurved margins, acute, with a microscopic papillation 
on the inner face, but not tuberculate; outer corona-lobes } lin. 
long, subquadrate, notched at the apex, glabrous ; inner corona- 
lobes 4 lin. long, subulate, acute or obtuse, applied to the backs of 
the anthers and shorter than or subequalling them. Schlechter in 
Journ. Bot. 1897, 291. Macropetalum Benthamii, K. Schum. in Engl. 
and Prantl, Pflanzenfam. iv. ii. 266. 
Katanart Recion: Transvaal; Magalies Berg, Burke, 326! Zeyher, 1175! 
ridge near Johannesberg, 6000 ft., Gilfillan in Herb. Galpin, 1458! Rand, 1121! 
near Pretoria, 4900 ft., Schlechter, 4152! near Klein Olifants River, Schlechter, 
3812, and near Botsabelo, Schlechter. 
Dr. Schlechter has stated that the flowers are green, but Dr. Rand in Journ. 
Bot. 1908, 340, writing about the living plant, states that the petals are ‘‘ brown- 
purple in colour,” and all the dried specimens I have seen which distinctly show 
any colour, have the inner surface of the corolla-lobes dark purple-brown. 
Dr. Rand also states that the corona-lobes are “‘continued up over stylar head, 
swollen and glandular at the tips,” but I do not find them so in his dried 
specimen (1121), nor in any others that I have examined, 
4. T. filifolia (N. E. Br.) tuber flattened, 1}-13 in. in diam. ; 
stem solitary, 14-24 ft. high, slender, simple or sparingly branched 
at the middle, #-1 lin. thick at the base, glabrous ; leaves erect or 
ascending, in 10-20 or more pairs, from below the middle to the 
apex of the stem, the lower 24-3} in. long, the others gradually 
smaller, filiform, glabrous ; flowers in very slender glabrous racemes, 
lateral at the nodes; lower racemes 3-4 in. long, occasionally 
branched, with 1-3 flowers at each of the 3-6 nodes, the upper much 
reduced ; bracts very minute; pedicels 2-3 (3-4, Schlechter) lin. long, 
capillary, glabrous ; sepals 4-3 lin. long, lanceolate or ovate-lanceo- 
late, acute, glabrous; corolla quite glabrous, apparently greenish 
outside and purple-brown on the inner face of the lobes ; tube about 
2 lin. long, cup-shaped ; lobes ascending-spreading, 4-4} lin. long, 
filiform from a deltoid-ovate base ; outer corona of 5 very minute 
prominent pouch-like lobes ; inner corona-lobes } lin. long, filiform, 
closely incumbent on the backs of the anthers and produced beyond 
them into connivent-erect tips, dark-coloured ; staminal column § lin. 
long; follicles diverging, about 2} in. long, 1} lin. thick, linear- 
terete, beaked, glabrous. Macropetalum filifolium, Schlechter in 
Engl. Jahrb. xxxviii. 36, fig. 4. 
