ADDENDA. 593 
Adams, 2; Makonde Plateau, near Mkomadatchi, Busse, 12538; Nyasa Region ; 
basin of the Luhagarra River, Busse, 1249; Likonde River, Busse, 1250 ; Lilambo 
River, Busse, 1252. 
According to Busse the latex of th's species is useless. 
26. Landolphia Thollonii, Dewévre. The rhizomes much 
branched and almost matted; branches up to 74 lin. in diam. and 
about 6-8 in. below the surface of the soil. Fruit globose or slightly 
attenuated at the base, up to 3 in. long, 2 in. in diam., dirty yellow, 
mottled with brown, rind thick; seeds 3-24 in an edible cream-like 
palp, 10-15 lin. long.—Cheval. in Bull. Mus. Hist. Nat. Par. vii. 
(1901) 426; De Wild., Not. Apocyn. Laticif. Congo, i. 40 et seq., 93, 
t. i. and Etudes Fl. Bas et Moyen Congo, i. 68; De Wild. & Gentil, 
Lian. Caoutch. Congo, 117, t. xxv., xxvi.; Hua in Rev. Cult. Colon. 
xiv. 65 et seq. 
South Central. Congo Free State: Eastern Kwango and Lualaba-Kasai 
districts to 50° S. lat. 
Carpodinus (?) chylorrhiza, K. Schum. in Baum, Kunene- 
Samb. Exped. 336. An undershrub about 16 in. high, with creeping 
rhizomes, much branched; branches minutely pubescent when young, 
then glabrous, dark brown, with minute lenticels. Leaves lanceolate, 
obtuse, acute or slightly rounded at the base, 1-3 in. long, 24-74 lin. 
long, firmly coriaceous, quite glabrous, with about 15 lateral nerves, 
more prominent above than below. Fruit obovoid, over 1 in, long, 
with corky warts, glabrous. 
26a. Landolphia droogmansiana, De Wild. in De Wild. d: Gentil, 
Lian. Cuoutch. Congo, 59, t. iii. A liane, up to 100 yards long and 
8 in. thick with numerous stout tendrils, glabrous when mature. 
Leaves oblong, almost rounded at the base, slightly and _ obtusely 
acuminate, 4—5 in. long, up to 1} in. broad, coriaceous, glabrous, midrib 
channelled above; lateral nerves 10-15 on each side, subhorizontal, like 
the veins very prominent below; petiole about 4 lin. long. Flowers 
unknown. Fruit ovoid to obovoid, brick-red, with a thick coriaceous 
rugose transverse ring at the middle and with longitudinal ribs, slightly 
depressed at the top, 1-3 in. in diam., on a short stout pedicel ; seeds 
1-30, reddish-brown, 74 lin. long, 34 lin. wide, embedded in an acidu- 
lous, edible, greyish pulp. 
South Central. Congo Free State: Kanda-Kanda, on the River Lusile, 
Gentil, 63. 
This is, according to De Wildeman and Gentil, an excellent rubber vine. The 
actual position of this species is somewhat obscure, the flowers not being known. 
266. Landolphia dubreucgiana, De Wild. in De Wild. & Gentil, 
Lian. Caoutch. Congo, 92, tt. 13-14. A liane, 4-5 yards long, up to 10 
lin. thick, climbing by means of very slender tendrils or sensitive in- 
florescences; branches slender, spreadingly hirsute, at length 
glabrescent; bark brown with numerous minute lenticels. Leaves 
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