694 ASCLEPIADE (Brown). [ Asclepias. 
Eastern Recion: Portuguese East Africa; Inhambane, Fornasini (ex 
Bertoloni). 
Probably also in Tropica] Africa. 
31. A. rivularis (Schlechter in Journ. Bot. 1896, 455); stems 
many from the same root and leafy to the base, growing to a height 
of 4 ft., simple, glabrous ; leaves in whorls of 3-4 or the uppermost 
sometimes opposite, petiolate, 24-4 in. long, 15-5} lin. broad, from 
almost linear to narrowly lanceolate, tapering to a very acute apex, 
cuneate-acute at the base, glabrous, sometimes minutely ciliate when 
young ; umbels numerous, lateral at the nodes, racemose, peduncu- 
late, 8—25-flowered ; peduncles 1-1} in. long, glabrous ; bracts very 
caducous, only seen on very young umbels, numerous, 24-3 lin. long, 
linear-subulate, glabrous ; pedicels #-1} in. long, slender, glabrous ; 
sepals 14-2 lin. long, 3-3 lin. broad, ovate-lanceolate, acute or 
acuminate, glabrous ; corolla-lobes reflexed, 2}—3$ lin. long, 13-1 
lin. broad, lanceolate-oblong, obliquely notched at the obtuse apex, 
glabrous on both sides, often ciliate on one margin, white ; corona- 
lobes arising }-} lin. up the staminal column and_ shorter 
than it, erect, cucullate, about 1 lin. long from the truncate 
base to the obliquely truncate top, about 3-3} lin. broad, the 
inflexed sides produced into erect acute points about 4 lin. long, 
without a tooth or process within ; staminal column 2—2} lin. long ; 
anther-appendages rather broader than long, subtruncately emargi- 
nate, rounded at the sides, slightly folded back longitudinally, 
loosely inflexed, over the slightly depressed-truncate style-apex 5 
follicles solitary, 141-2} in. long, nearly 1 in. thick, ovoid, ellipsoia 
or elongate-obovoid, very obtuse, glabrous, apparently somewhat 
fleshy ; seeds about 2} lin. long, 1} lin. broad, ovate, central 
part smooth and slightly convex on both sides, surrounded by 
a broad transversely plicate- wrinkled rim, glabrous, brown. 
Schlechter in Ann. Naturhist. Hofmus. Wien, xv. 68. Gomphocarpus 
rivularis, Schlechter in Engl. Jahrb. xx. Beibl. 51, 36. 
Katanart Recion: Transvaal ; Mooi River, Burke, 331! and probably from 
the same locality, Zeyher, 1166! Derde Poort, near Pretoria, Rehmann, 4782! in 
streams near Middelburg, Schlechter, 3789! Potchefstroom, Burtt Davy, 2174! 
Piet Retief, Burtt Davy, 1932! between Middelburg and Crocodile River, Wilms, 
949! stream between Carolina and Wonderfontein, Burtt Davy, 2993 ! Potgeiters 
Rust, Rogers, 538 ! : 
EASTERN REGION, growing in water and very wet situations: Transkei } Bashee 
River, Drége, 4942! Tsomo River, Bowker and Mrs, Barber, 869! Tllitooli River ; 
Bowker and Mrs. Barber, 824! Tembuland; Bazeia, Baur, 487! Qumankwe 
River, near Engcobo, Bolus, 10202! Griqualand East ; near Clydesdale, Tyson. 
3119! banks of the Umzimhlava River, Krook, 795! Schlechter, 6541! near 
Kokstad, Haygarth in Herb. Wood, 4257! Pondoland, Drége, 4948 ! 
$2. A. rotundifolia (Mill. Dict. ed. 8, no. 15); a branching shrub 
about 2-3 ft. high; branches 2-3} lin. thick, velvety-tomentose, 
with internodes }—}1 in. long ; leaves spreading, subsessile or with 
