752 ASCLEPIADEZ (Brown). [ Cynanchum. 
The Natal specimens seem mostly to have a slightly 5-crenulate corona, which 
is not the case in those from the other regions. Specimens of C. schistoglossum 
have also been distributed by Mr. Wood under the number 611. 
Until now all authors have erroneously identified Cynanchum capense, Linn. f., 
with this plant, no one having taken the trouble to examine his type The dis- 
tinguishing characters in Linneus’ description of C. capense are:— “* Leaves 
obsoletely cordate-ovate, mucronate, smooth, the younger ovate, the adult 
emarginate with a mucro” and “‘Pedicels capillary, longer than the peduncle.” 
In the Linnean Herbarium are 2 sheets of good specimens under Cynanchum 
bearing the name ‘‘capense” upon them in Linnean handwriting. The first of 
these contains a specimen of Pentatropis microphylla, Wight and Arn., an Indian 
plant, collected by Kénig, as quoted by Linneus fil. ; the second contains a 
specimen of the South African Cynanchum obtusifolium, Linn. f., probably the 
one from Sparrmann referred to by Linnaeus fil. With the latter, the characters 
above noted, especially as to the pedicels, do not accord, whilst they exactly agree 
with the specimen of: Pentatropis microphylla, from which latter it is clearly 
evident Linneus fil. made his description of C. capense, therefore the name 
C. capense, Linn. f., must henceforth be quoted as a synonym of Pentatropis 
microphylla, Wight and Arn. 
I have also examined the types of Cynanchum capense of Robert Brown and of 
Thunberg. The former I find to be C. obtusifolium, Linn. f., of which I have also 
seen the type. Thunberg’s type of C. capense is, however, that which I have 
above described, and his name as the authority for this species must now replace 
that of Linn. f. There is no specimen of C. capense, Thunb., in the Linnean 
Herbarium under Cynanchum or the allied genera. 
10. C. virens (Dietr. Syn. Pl. ii. 905, not of 906) ; stem twining, 
glabrous or slightly puberulous ; leaves herbaceous ; petiole 4—2 in. 
long ; blade 1-34 in. long, }-14 in. broad across the cordate base, 
thence tapering to an acute apex, glabrous or thinly sprinkled with 
minute curved hairs on one or both sides : cymes umbel-like, axillary, 
3-15-flowered ; peduncles 1-6 lin. long; pedicels 14-2 lin. long, 
glabrous or with a few minute curved hairs ; sepals 1-1} lin. long, 
| lin. broad, lanceolate, acuminate, glabrous ; corolla-tube 4 lin long ; 
lobes 2-3 lin. long, 3-1 lin. broad at the ovate-lanceolate base, 
tapering into a linear twisted point, glabrous on the back, puberulous 
on the inner face ; corona very deeply 5-lobed ; tube about 3 lin. 
long, shortly cupular ; lobes erect, 14—-1# lin. long, 4 lin. broad at the 
base, thence tapering to a very acute point, with a small oblong or 
rounded appendage near their base on the inner face, which varies 
from being entirely adnate to nearly free; staminal column not 
quite 1 lin. long, not stipitate ; anther-appendages ovate, inflexed 
upon the short obtusely conical style-apex ; follicles stout, solitary 
or in pairs, 2-24 in. long, 3-3} in. thick, lanceolate or ovate lance- 
olate, tapering into a beak, smooth, glabrous. Steud. Nom. Bot. ed. 
2, i. 462; Decne in DC. Prodr. viii. 552; Schlechter in Engl. Jahrb. 
xx. Beibl. 51, 2 and 42 ; xxi. Beibl. 54,11; and Journ Bot. 1896, 
456. Cynoctonum virens, E. Meyer, Comm. 216 ; Decne in DC. Prodr. 
viii. 552. Endotropis Meyeri, Deene, l.c. 546. Vincetoxicum virens, 
Kuntze, Rev. Gen. Pl. ii. 424. 
iB Coasr Recion : Queenstown Div.; between Klipplaat River and Zwartkei River, 
Drege, 3433 ! 
