NOTES ON AFRICAN CONVOLVULACEX 181 
Hab. —— Rhodesia: Bulawayo, on schists, open veld, 
4500 ft., F. Hyles, no. 21, Oct. Flowers purplish-red u 
east Angola: near Fort Prineeza Amelia, Cubango; in poor gravelly 
short thicket-grown pasturage, Gosswe eiler, no. 2351, Dec.; flower 
delicate iy oe with red-purplish colouration towards the rer 
expanding during the forenoon only ; on poor pas 
gravelly re pee no. 2503, Jan.; corolla pale red; in grav polly 
sais on sunny herb-grown pasturage, no. 2942, ‘Jan.; flower 
rose 
Peorinhes to 23 ft. long (‘8 metre); much shorter (to 20 cm.) 
and stouter in the Rhodesian specimen, which is also less see 
hairy than the Angolan plants ; leaves ie} a em. long, 1-15 ¢ 
broad; petiole :25-1 cm. long; pedun 1:5-3°5 cm. wate 
bractegles attached about the middle ie peduncle, about 
1 cm. or a little longer; sepals about equal in length to the 
seo gan corolla 3:°5—4 cm. lo 
r. ovata Hallier f., but ‘distinguished by its small cor- 
date Ey and is a more densely hairy plant. 
I. uinosepaua Hallier f. Hitherto known only from Wel- 
in Welwitsch’s specimen were all closed) are 35 cm. long, and 
paler than in Welwitsch’s plant, having a white limb with the 
tube violet-red inside. The woody, cylindrical rhizome is 1 cm. 
thick. 
Wetwitscut Vatke. A very fine-flowered form was 
salt det 
Upre r Tienewirin yt the flowers are 6 cm. long. There are 
also two interesting specimens from Mr. Gossweiler which en- 
large our knowledge of the species. One (no. 3655) grows from a 
huge napiform rhizome, 1 dm. long and 4 cm. thick, an has a 
bright purplish-red corolla; it was found here and there in open 
— at Cubango near Fort Princeza Amelia (Jan. 1907), and 
& narrow- Saat es of the var. latifolia, forming a link between 
that and the spec 
ime paren sweileri, sp. nov. Herba i e tubere 
peren ibus erectis ral decumbentibus, superne densius 
foliatis: “foliig orbicularibus yenulosis breviter petiolatis ; floribus 
uam folia brevioribus; 
ea, 4:5 em. longa 
Hab. South-east ‘Abpea 
grown ses at River Cam 
N ov Gossweiler, no. 3887. 
A unique specimen, with slender soft woody stems, 20-30 cm. 
“here and there in shin shrub- 
bambe (tributary of River Cuebe), 
