724 ASCLEPIADE& (Brown). | Pachycarpus. 
Katanart Recron: Transvaal ; grassy slopes at the base of mountains extend- 
ing from Barberton to Avoca, 2000-2800 ft., Galpin, 707! White River Settle- 
ment, Burtt Davy, 1500! 
8. P. natalensis (N. E. Br.); plant 14-1} ft. high, in stem, 
habit and general character of the leaves and inflorescence like 
P. appendiculatus, with the following differences ; leaves usually 
broader, 13-2? in. long, 1-2 in. broad, oblong or elliptic, very 
obtuse or slightly retuse, apiculate, obtuse or very broadly cuneate 
at the base ; umbels sessile, usually 3—4-flowered ; pedicels 4—} in. 
long ; sepals 6-7 lin. long, 2 lin. broad, lanceolate, acuminate, rather 
coarsely pubescent, ciliate ; corolla-lobes apparently reflexed-spreading 
at the basal part with the terminal half upcurved, 7-8 lin. long, 5—6 
lin. broad, ovate or elliptic-ovate, obtusely pointed, slightly concave or 
nearly flat, thinly pubescent on the back, glabrous on the inner 
face, green, spotted with purple-brown (Wood) ; corona-lobes 4-5 
lin. long, with the basal part spreading, claw-like, scarcely or very 
slightly dilated and 1-11 lin. broad at the very base, bearing 2 erect 
parallel subcontiguous oblong wing-like (or perhaps fleshy when 
alive) keels 1} lin. high and 3 lin. broad, obliquely acute to 
truncate at their tips, with the inner and dorsal margins nearly 
parallel, and the inner margins with a narrow wing on the outer 
side extending to the broadest part of the claw, which at a short 
distance beyond the keels abruptly expands into an ovate or sub- 
cordate-ovate acute blade about } in. long and broad, flat, inflexed 
over the claw and keels, apparently purple-brown with whitish 
keels ; staminal column about 24 lin. long; anther-appendages 
large, 14 lin. long, ovate-acute, with the margins much folded back, 
loosely incurved over and much above the style-apex ; anther-wings 
1 lin. long, with concave outer margins; follicles solitary, horizontally 
spreading, 34 in. long, 11 in. in diam. in the immature specimen 
seen, stoutly fusiform-ellipsoid, obtuse with 4 entire wings 14-2 lin. 
broad, glabrous. 
Eastern Recon: Natal; Inanda, Wood, 470! 1420! Intshanga, Wood, 6641 ! 
parser het Farm, Riet Vlei, Fry in Herb. Galpin, 2744! Dargle Farm, 
‘annin, 35! 
Probably Wilms 2135, collected near Pietermaritzburg, belongs to this species, 
but I have not dissected it. Dr. Schlechter in various Herbaria has included this 
plant under P. appendiculatus, from which it is entirely different in floral 
structure. 
9. P. plicatus (N. E. Br.); stem 8-15 in. high, simple or 
sparingly branched at the base, scabrous or subscaberulous along 
2 broad lines; leaves ascending or ascending-spreading ; petiole 
2-6 lin. long ; blade 14-3 in. long, 3-1} in. broad, elongated oblong 
or oblong-lanceolate to elliptic-oblong or elliptic-ovate, shortly acute 
or obtuse or broadly rounded and apiculate at the apex, rounded to 
somewhat broadly cuneate at the base, scabrous to thinly scabrous- 
pubescent on both sides, densely so on thie margins and midrib 
