Pachycarpus. | ASCLEPIADE& (Brown). 733 
19. P. McKenii (N. E. Br. in Dyer, Fl. Trop. Afr. iv. i. 377) ; 
stem 2 ft. or more high, stout, bifariously subhispid ; leaves spreading, 
shortly petiolate, 14-2 in. long, #-14 in. broad, elliptic, obtuse, 
apiculate, cuneate or rounded at the base, coriaceous, thinly 
sprinkled with outstanding hairs on both sides, scabrous and ciliate 
on the margins, the cilia disappearing with age; umbels lateral at 
the nodes, shortly pedunculate, 2—4-flowered ; peduncles 14-2 lin. 
long, roughly hairy ; pedicels 3-4 lin. long, roughly hairy ; sepals 
5-6 lin. long, 2-24 lin. broad, lanceolate, acute, hairy and ciliate 
with rather long and somewhat stiff hairs; corolla 1 in. or more in 
diam., thinly pubescent outside, glabrous within, apparently whitish, 
spotted with purple; tube about } in. long, very broadly campanu- 
late or cup-shaped; lobes apparently ascending-spreading, about 
5 lin. long, 44 lin. broad, ovate, notched at the obtusely pointed 
apex ; corona-lobes arising 14 lin. up the staminal column, 7 lin. 
long, 1-1} lin. broad, apparently purple-brown, horizontally spreading 
at the base, then upcurved, with the upper half horizontally incurved 
over the basal part, linear, acute, replicate at the upper half, bearing 
2 keels extending from the base to beyond the middle and then 
excurrent at the margins, rectangular and not reaching to the tops 
of the anthers at the base, closely contiguous for 3 of their length, 
then diverging ; staminal column } in. long, anther appendages 
ovate, acute, inflexed over the depressed-truncate style apex ; anther- 
wings abruptly widely divergent at the very base, but scarcely or 
not at all broader or more prominent than at the apex. Gompho- 
carpus M‘Kenit (misprint for McKenii), Harv. Thes. Cap. ii. 60, 
(McKenii) t.194. G. Mackenii, Pritz. Ind, Ic. Bot. ii. 135. Asclepias 
Mackenii, Schlechter in Journ. Bot. 1896, 454. 
Eastern Recion: Zululand, Gerrard, 1284! 
Xysmalobium orbiculare was also distributed as Gerrard, 1284. 
20. P. coronarius (E. Meyer, Comm. 209); plant 2-25 ft. high, 
exactly like P. grandiflorus, E. Meyer, in appearance ; leaves shortly 
petiolate, spreading, 14-3 in. long, up to 1 in. broad, oblong or 
oblong-lanceolate, acute, somewhat scabrous or nearly glabrous on 
both sides, undulate at the scabrous margins ; flowers in pairs at the 
nodes ; pedicels 1-14 in. long, more or less pubescent ; sepals }-1 in. 
long, 5-6 lin. broad, elliptic, shortly acuminate or very acute, 
thinly pubescent ; corolla about 1} in. in diam., inflated-globose, very 
slightly pubescent outside or glabrous on both sides, apparently 
whitish-green or yellowish-green, sometimes spotted with dark 
purple-brown ; united part 4 lin. long; lobes 1} in. long, 1 in. or 
more broad, elliptic-ovate, acute, very concave, with overlapping 
margins and recurved tips ; corona-lobes horizontally spreading, # in. 
long, lanceolate, deeply complicate boat-shaped, obtuse, somewhat 
deltoid-ovate viewed sideways, narrowly wing-margined along the 
linear-oblong under side, not produced at the apex beyond the broad 
erect sides, which rise to the level of the style-apex and are 44-5 
