Cynanchum. | ASCLEPIADE (Brown). 749 
error 445); Krauss in Flora, 1844, 827. Vincetoxicum africanum, 
Kunize, Rev. Gen. Pl. ii. 422 ; Bolus ea Schlechter in Engl. Jahrb. xx. 
Beibl. 51, 5, and Journ, Bot. 1896, 457, in syn. V. pilosum, Nichols. 
Dict. Gard. iv. 160. Periploca africana, Linn. Sp. P!. ed. i. 211; 
Ait. Hort. Kew. ed. 1, i. 301; Thunb. Prodr. 47; in Nov. Act. Acad. 
Petrop. xiv. 518; Fl. Cap. ed. 2, 152, and ed. Schultes, 233 : 
Willd. Sp. Pl. i. 1251; Pers. Syn. Pl. i. 272; Poir. Encyel. v. 190. 
P. pallida, Salisb. Prodr. 148.—Apocynum scandens africanum, éc., 
Commelin, Hort. Med. Amst. Pl. Rar. 18, t. 18. 
Var. 8, crassifolium (N. E. Br.) ; stem, leaves and iaflorsse mee quite glabrous. 
C. crassifolium, R. Br. in Mem. Wern. Soc. i. 46; Schultes, Syst. Veg. vi. 101; 
Spreng. Syst. i. 851; @. Don, Gen. Syst. iv. 153; Dietr. Syn. Pl. ii. 904. C. 
rotundifolium, Thunb. ? ex Decne in DC. Prodr. viii. 552. Cynoctonum crassi- 
folium, E. Meyer, Comm. 216 partly; Decne in DC. Prodr. viii. 530, excl. 
synonyms ; Meisn. in Hook. Lond. Journ. Bot. ii. 1843, 545 (by error 445). C. 
crassifiorum, Krauss in Flora, 1844, 827. 
Sourn Arrica : without locality, Herb. Linneus! Kiggelaer! Nelson! Harvey, 
413! Pappe! Herb. Miller! Var. B: Harvey, 248! 
Coast Reeion: Clanwilliam Div.; near Modderfontein, Penther, 2411 (ex 
Schlechter), by the Oliphants River, Schlechter, 4988 ! Malmesbury Div. ; Saldanha 
Bay, Dréye, 230b! Tulbagh Div. ; New Kloof, near Tulbagh, Burchell, 1018! 
Tulbagh Waterfall, Ecklon and Zeyher! Mosterts Berg, MacOwan, Herb. Austr.- 
Afr. 1634! Paarl Div. ; Paarl, Prior (Alexander)! Cape Div. ; Cape Flats and 
other parts of the Cap2 Peninsula, Thunberg! Burchell, 370! Zeyher, 1176! 
Harvey, 236! Bolus, 4019! and in Herb. Norm. Austr.-Afr. 1087! Galpin, 4331 ! 
Wolley Dod, 1615 ! 2995! 3607! Wilms, 3479! Wright, 592! Knysna Div. ; by the 
Gouwkamma River, Arawss, 1256 (ex Meisner), Var. B: Clanwilliam Div. ; 
Lamberts Bay, Schlechter, 8547 ! Piquetberg Div. ; St. Helena Bay, Hove! Cape 
Div. ; Paarden Island, Drége, 230! Wolley Dod, 3151! Humansdorp Div. ; 
Zitzikamma, Krauss, 1257 (ex Meisner). 
Var. 8 is only a glabrous maritime form. 
8. C. obtusifolium (Linn. f. Suppl. 169); stems twining, 
glabrous ; leaves spreading, thinly coriaceous, glabrous; petiole 
2-7 lin. long; blade 3-14 in. long, 4-1} in. broad, oblong to broadly 
elliptic or almost suborbicular, obtuse and apiculate at the apex, 
rounded, subtruncate or cordate at the base, glabrous on both 
sides ; flowers in small shortly pedunculate fascicles or umbel-like 
cymes, the axis of which gradually elongates to 2-6 lin. long, 
occasionally branches and is spirally marked with the scars of fallen 
flowers ; peduncles 4—5 lin. long, glabrous ; bracts minute ; pedicels 
1-1} lin. long, glabrous; sepals 3 to nearly 1 lin. long, }—} lin. 
broad, ovate, acute or subobtusely pointed, glabrous ; corolla-lobes 
apparently very spreading, 14-2 lin. long, 3-1 lin. broad, ovate- 
oblong, or oblong, subobtuse, glabrous on the back, minutely 
puberulous on the inner face ; corona 3-1} lin. long, 5-lobed to $ or 
% of the way down, with a small two-toothed rounded or lanceolate 
lobule alternating with the lobes, and the basal part shortly cup- 
shaped: lobes ovate, acuminate, more or less denticulate on the 
Margins, incurved over the staminal column or rarely erect, with 
2 keels on the inner face and rarely with a minute appendage at 
