Pachycarpus. | LXXXV. ASCLEPIADEE (BROWN). 377 
(A. schinziana, Schlechter); P. Galpinii, N. E. Br. (A. Galpinii, Schlechter) ; 
P. scaber, N. E. Br. (Gomphocarpus scaber, Harv.); P. McKenii, N. E. Br. 
(G. Me Kenii, Harv.); and P. validus, N. E. Br. (A. valida, Schlechter) ; all of 
which I have examined, The habit and general appearance of all the species I have 
seen is very uniform, and in most cases is quite sufficient to distinguish this 
genus from its allies. 
Leaves linear-lanceolate, 1-1 in. broad. : - 1. PB. rhinophyllus. 
leaves oblong, ovate-oblong or oblong-lanceolate, 
-li in. broad. . ‘ z 2 : . 2. P. concolor, 
1. P. rhinophyllus, V. 7. Br. Stem more or less flexuose, 
pubescent-scabrid. Leaves spreading-incurved, subsessile or with 
petioles 4-1 lin. long; blade 4-6 lin. long, 4-6 lin. broad, linear- 
lanceolate, gradually tapering to an acute point, acute at the base, 
scabrid on both sides. Umbels terminal and probably also lateral ; 
pedicels 7 lin. long, with a spreading pubescence; bracts subulate, 
pubescent. Sepals 7 lin. long, ovate-lanceolate, acuminate, pubescent, 
Scaberulous near the apex. Corolla rotate-campanulate ; lobes 6-7} lin. 
long, 4-5 lin, broad, elliptic-ovate, shortly and rather abruptly pointed, 
pubescent on the back. Coronal-lobes arising from the base of the 
staminal-column and incurved over it, } in. long, horizontally spreading 
at the dilated rhomboidal base, then abruptly contracted into a long 
linear obtuse incurving apical part; upon the middle of the dilated base 
stand two erect, broadly deltoid, obtuse teeth 14 lin. long and nearly 
as broad, placed close together and nearly or quite reaching to the top 
of the staminal-column. Anther-appendages elliptic-ovate, inflexed 
over the apex of the style-——Gomphocarpus scaber, K. Schum. in Engl. 
Jahrb, xvii. 124, not of Harvey. G. rhinophyllus, K. Schum. in Engl. 
PA. Ost.-Afr. C. 322. @. trachyphyllus, K. Schum. in Engl. & Prantl, 
Pflanzenfam. iv. ii. 237. 
Mozamb. Dist. (German East Africa: Evst bank of Lake Victoria, 
Fischer, 399 ! 
Through the kindness of Prof. Engler, I have seen a flower and leaf from the 
type, but do not find any black hairs on the outside of the corolla as mentioned in 
the original description. Gomphocarpus scaber, Harvey, has the same type of 
©oronal-structure, but is otherwise a totally different species. 
2. P. concolor, £. Meyer, Comm. 210. Stems 10-16 in. high, 
simple, 13-3 lin. thick, somewhat scabrid-pubescent. Leaves numerous, 
4-1} in. apart, spreading ; petiole 2—4 lin. long; blade 13-3} in. long, 
3-1} in. broad, oblong or ovate-oblong, acute or obtuse and apiculate, 
rounded or rarely cuneate at the base, usually undulate, rigid in the 
dried state, with scattered hairs on both sides or nearly glabrous on one 
or both surfaces, scabrous on the margins. Umbels lateral at the nodes, 
Sessile or shortly pedunculate, 2- (very rarely 3-) flowered, or some of 
the flowers solitary; peduncles 0-3 lin. long; pedicels 4—7 lin. long, 
Somewhat roughly pubescent. Sepals 5-9 lin. long, 2-3 lin. broad, 
Ovate-lanceolate, acuminate, spreading, rather coarsely pubescent. 
Corolla 1-1} in. in diam., glabrous or very slightly pubescent outside, 
