258 LXXXY. ASCLEPIADEZ (BROWN). [ Periploce. 
Follicles 34-5 in. long, 2 lin. thick, terete-attenuate, straight, horizon- 
tally diverging, sometimes solitary—A. Rich. Tent. Fl. Abyss. ii. 
33. Decne. in DC. Prod. viii. 498; Engl. Hochgebirgsfl. Trop. Afr. 
341. K. Schum. in Engl. Pfl. Ost.-Afr. C. 321; in Engl. Jahrb. 
xxviii. 454; and in Engl. & Prantl, Pflanzenfam. iv. ii. 216. P. 
linearis, Hochst. ex Decne. in DC. Prod. viii. 498. 
Nile Land. Abyssinia: Tigre; on Mount Sholoda, Schimper, 365! 1857! 
near Adowa, Quartin Dillon & Petit! near Mai Gouagoua, Quartin Dillon! 
Samen ; near Enjedcap, Schimper, 1332! Begemeder, Schimper, 226! Amba Sea, 
Schimper! Shoa: Chakka Mountains, Roth, 417! and without precise locality, 
Schimper, 987 ! 
Mozamb. Dist. German East Africa: Kilimanjaro, at Marangu, 4600 ft., 
Volkens, 269! Usambara; Heboma, Holst, 2573! Ukame; South Uluguru, 
3900 ft., Goetze, 226 (ex Schumann). 
3. P. nigrescens, <A/fzel. Stirp. Guin. Med. Sp. Nov. i. 2. 
Stem twining, glabrous. Leaves distant ; petiole #-14 in. long ; blade 
3-54 in. long, 14-8} in. broad, oblong or elliptic-oblong, cuspidate, 
rounded, subtruncate or subcordate at the base, glabrous on both 
sides, glaucous beneath. Panicles axillary, 2-3 in. long, glabrous; 
bracts 1 lin. long, oblong-ovate, obtuse; pedicels 3-5 lin. long. 
Sepals 14-14 lin. long and broad, very broadly ovate, obtuse. Corolla 
rotate, glabrous, dark red inside (Holland), nearly black (Barter), with 
a velvety sheen ; tube very short; lobes 4—5 lin. long, 24-3 lin. broad, 
reflexed, oblong, obtuse, with one margin produced at the apex into an 
oblique membranous inflexed or cochleate auricle. Coronal-lobes 3-4 
lin. long, filiform or linear, not dilated at the base, usually divided 
above the middle into 2-4 filaments, of which the middle 1-2 are 
usually tortuous in the upper part, and the lateral pair short and 
spreading, rarely undivided. Stamens hairy on the filaments and 
backs of the ovate-oblong anthers. Follicles (according to A/fzelius), 
about 17 in. long, horizontal or slightly reflexed, lanceolate-attenuate, 
2-edged, angles acute.—Hiern in Cat. Afr. Pl. Welw. i. 681; K. 
Schum. in Engl. Jahrb. xxiii. 232. P. Afzelii, G. Don, Syst. Gard. iv. 
163. P. Preussii, K. Schum. in Engl. Jahrb. xvii. 117; and in Engl. 
& Prantl, Pflanzenfam. iv. 216 and 217, fig. 64, R—V. De Wild. & 
Durand, Contrib. Fl. Congo, ii. fase. 2, 41. P. nigricans, Schlechter, 
Westafr. Kautschuk-Exped. 308. Parquetina gabonica, Baill. in Bull. 
Soc. Linn. Paris, ii. (1889) 806 (86 by error); & Hist. Pl. x. 2945 
K. Schum. in Engl. & Prantl, Pflanzenfam. iv. ii, 218. 
Upper Guinea. Sierra Leone, Afzelius! Don! Barter / Scott-Elliot, 4206! 
5631! Mann, 845! Niger Territory: New Calabar, at Degama, Holland, 127! 
Old Calabar, Thomson, 43! Ikun, in a village near Ododobo, Holland, 261! 
Cameroons : Bipinde, Zenker, 863! between Mokonye and Kumba Ninga, Preuss, 
151 (ex Schumann). 
Lower Guinea. Gaboon: Munda; Sibange Farm, Soyaua, 406! Biittner, 
402 (ex Schumann); Como River, Bates, 465! Gaboon River, Mann / woods neat 
Libreville, Schlechter, 12,822, and without precise locality, Duparquet. Loango; 
Lagoa of Chinchocho, Soyaux, 46 (ex Schumann). Lower Congo, Smith! Loe 
Congo and between Sambo and Yanga, Cabra (ex De Wildeman & Durand); 
