802 ASCLEPIADEZ (Brown). [ Riocreuara. 
3. R. Bolusii (N. E. Br.) ; stem twining, pubescent all round ; 
leaves herbaceous, thinly sprinkled with minute adpressed hairs 
above, puberulous or pubescent beneath; petiole 4-14 in. long; 
blade 13-32 in. long, 1-3} in. broad or perhaps larger, broadly 
cordate-ovate, acute or acuminate ; cymes racemosely or dichoto- 
mously branched, and (including the }—1} in.-long peduncle) 2—4 in. 
long, more or less puberulous on the branches and upper part of the 
2-1 in.-long pedicels ; flowers in pairs racemosely scattered along the 
short or gradually elongating branches of the cyme ; sepals 1} lin. 
long, subulate or lanceolate-subulate, puberulous ; corolla-tube 37-9 in. 
long, probably slightly ovoid-inflated at the base, but the inflation 
almost obliterated in dried specimens, glabrous, apparently pale 
yellowish ; lobes connivent-erect and connate at the tips, 3—4 lin. 
long, attenuate-linear, glabrous, apparently slightly darker than the 
tube; outer corona-lobes about } lin. long, narrowly deltoid or 
subulate-lanceolate, acute or bifid, concave-channelled down the 
face, with a minute tooth on each side at the base; inner corona- 
lobes oblong or linear-oblong, obtuse, adpressed to the backs of the 
anthers and about half as long as them. 
Eastern Recion: Tembuland; on the banks of the Umtata River near 
Umtata, 2200 ft., Bolus, 10194 ! 
In its broad leaves and more cyme-like character of its inflorescence this — 
resembles R. polyantha, but the leaves are rather thinner and the corona entirely 
different, being more like that of R. torulosa. 
4. R. torulosa (Decne in DC. Prodr. viii. 640); stem twiming, 
pubescent nearly or quite all round ; leaves herbaceous, somewhat 
adpressed-pubescent on both sides, often more densely so beneath ; 
petiole 4-24 in. long ; blade 14-5 in. long, 3-3} in. broad, elongated 
cordate-ovate or more rarely broadly cordate-ovate, acuminate ; 
peduncles 1-3 at each stem-node, slender, 1-3} in. long, bent at me 
nodes, pubescent, bearing 2-3 distant umbel-like fascicles vaded 
only 1 fascicle) of 2-15 flowers, with or without an additiona 
fascicle sessile at the node; pedicels }-1} in. long, glabrous ie 
pubescent throughout, or minutely pubescent on the apical part or 
glabrous below ; sepals about 1 lin. long, lanceolate, acumina! “4 
pubescent ; corolla glabrous, pale yellow, more or less tinged wit t 
red or purplish ; tube 34-5 lin. long, globose or ovoid-inflated a 
the base ; lobes connivent-erect, connate at the tips, 244 lin. long, 
linear-attenuate ; outer corona of 5 subulate or filiform and entire 
or linear-subulate and bifid lobes, horizontally radiating high above 
the base of the staminal column, yellowish or purple, alternating 
with 5 pairs of minute or elongated teeth (sometimes nearly oF 
quite obsolete) placed just below or forming one series with them ; 
inner corona-lobes closely pressed against the staminal column, 
minute, reaching to about the base of the anthers, thin, oblong, 
obtuse ; staminal column about 1 lin. long ; follicles subparallel or 
curved, 3-7 in. long, } in. thick, linear-terete, with constrictions 
