Pergularia. | ASCLEPIADE (Brown). 759 
Martelli, Fl. Bogos, 54; Hiern in Cat. Afr. Pl. Welw. i. 690 ; Penzig 
in Atti del Congr. Internaz. 1892, 348 ; Schlechter in Engl. Jahrb. xxi. 
Beibl. 54, 11; Journ. Bot. 1896, 458 (excl. syn. D. garipensis, E. 
Meyer) ; De Wild. and Durand, Pl. Thonn. 33, and Relig. Dewevr. 
159 ; N. E. Br. in Dyer, Fl. Trop. Afr. iv.i. 387. D. cethiopica, Decne, 
and D. angolensis, Decne, in DC. Prodr. viii. 544 ; Hook. Niger Fi. 
454. D. bicolor, Sweet, Hort. Brit. ed. 1,280. D. scandens, G. Don, 
ex Loud. Hort. Brit. 94. D. guineensis, G. Don, Gen. Syst. iv. 156. 
'D. barbata, Schlechter in Engl. Jahrb. xx. Beibl. 51, 43, not of 
Klotzsch. D. cordifolia, K. Schum. in Engl. Pfl. Ost-Afr. C. 324, in 
Engl. and Prantl, Pflanzenfam. iv. ii. 257, fig. 74, and 258, and in 
Ann. Istit. Bot. Roma, vii. 40. Dimia eatensa, Spreng. Syst. Veg. i. 
853 ; Dietr. Syn. Pl. ii. 906. Cynanchum eatensum, Jacq. Miscell. 
ii. 353, and Ic. Rar. i. t. 54; Ait. Hort. Kew, ed. 1, i. 303; Salisb. 
Prodr. 149; Willd. Sp. Pl. i. 1257. C. cordifolium, Retz. Obs. Bot. 
ii. 15. C. bicolor, Andr. Bot. Rep. ix. t. 562. CO. echinatum, Thunb. 
Obs. in Cynanch. 8. C. pendulum, Poir. Encycl. Suppl. ii. 429; 
Schultes, Syst. Veg. vi. 108. Asclepias scandens, Beauv. Fl. Oware 
et Benin, i. 93, t. 56. A. convolvulacea, Willd. Sp. Pl. i. 1269; 
Schum. and Thonn. Beskr. Guin. Pl. 152. A. muricata, Schum. and 
Thonn. Beskr. Guin. Pl. 153. Raphistemma ciliatum, Hook. f. Bot. 
Mag. t. 5704. 
Katanart Recron: Bechuanaland ; Banquaketse Territory, near Moshoneng, 
or. Transvaal ; near Klippan, Rehmann, 5297! near Ramakopa, Schlechter, 
Eastern Recton: Natal; near the Tugela River, Gerrard, 1802! Delagoa Bay, 
Monteiro, 19! Schlechter, 11959 ! 
Also in Tropical Africa, Madagascar, and extending through Arabia into India. 
In the Tropical African forms the flowers vary from white or whitish-green, with 
or without a red blotch at the base of the lobes, to pale yellowish-green or lurid 
green with a red blotch at the base of the lobes. The follicles are exceedingly 
variable in their amount of echination. 
XXV. EUSTEGIA, R. Br. 
Calyx 5-partite ; sepals ovate or lanceolate. Corolla very deeply 
5-lobed ; lobes spreading, overlapping in bud. Corona of 3 series 
of erect lobes arising from the base of the staminal column ; outer 
series of 5 entire lobes opposite the corolla-lobes ; middle series of 
5 trifid or subsimple lobes alternating with the corolla-lobes ; inner 
series of 5 entire lobes also alternating with the corolla-lobes, 
pressed against the backs of the anthers. Stamens connate around 
the ovary, with the anthers adnate to the style-disk ; anthers erect, 
with short membranous appendages. Pollen-masses solitary and 
pendulous in each anther-cell, laterally attached at their attenuated 
tips to the strongly hooked ends of the long caudicles, which hang 
from the base of the very small pollen-carriers. Style produced 
much beyond the anther-appendages, tapering or stout, Ovules 
numerous in each carpel. Follicles not seen. 
