Convolvulus.] XC. CONVOLYULACES (BAKER AND RENDLE). 97 
Var. subcordata, Hallier f. l.c. 584 (as subvar.) partly. Perennial, with a rather 
stout woody rhizome ; aerial shoots tufted, slender, elongated, prostrate, shortly fulvous 
pubescent in the younger part, glabrescent below. Leaves triangular-ovate, acute. 
with a cordate base, reaching about 1 in. long, the older ones very sparsely pilosulose 
on both surfaces, more densely on the veins beneath. Peduncles 1-flowered, brown 
pubescent like the young stem, rarely more than 1 in. long, bearing a pair of short 
linear bracts above the middle. Sepals pubescent like the young shoots, elliptic, 
shortly acute, barely exceeding 3 lin. long. Corolla rose-coloured, said to reach 
10 lin. long (about 7 lin. in the specimen in Herb. Kew.). Seeds dark brown, 
glabrous, apparently smooth.—C. Steudueri, Engl. Hochgebirgstl. Trop, Afr. 350 ; 
Hallier f, in Engl. Jahrb. xviii. 104, 
Nile Land. Abyssinia: high plateau of Talanta, Roh/fs,16; Tanta, near 
Magdala, Steudner, 956 ; and without precise locality, Schimper, 165! 
Also in Southorn Arabia. 
Var. linearifolia, Hallier f. (as subvar.) in Bull, Herb. Boiss, vi. 534. A 
climber, glaucous, very thinly puberulous: branches filiform. Leaves long linear, 
minutely auricled at the base, acute, up to 2} in. long, 1-2 lin. broad; petiole 23 lin. 
long. Peduncle rather thick, about 8 lin. long ; pedicel equal to the peduncle. 
Sepals ovate-lanceolate, with a very thin grey somewhat silky covering on the back. 
Corolla barely 9 lin. long, white, the midpetaline areas silky outside.—Hallier f. 
in pet Kunene-Sambesi Exped. 345; Baker & Wright in Dyer, FI. Cap. iv. 
li, 72. 
2 Lower Guinea. Angola: by the Chitanda River, between Goudkopje and 
Kakele, 4000 ft., Bawm, 180! 
Also in South Africa. 
19. ©. huillensis, Rendle. Stems trailing, silky hairy. Leaves 
ovate, apiculate from a subobtuse apex, entire, silky hairy, }~1 in. 
long, with small entire basal auricles; petiole very short. Hairs on 
the younger part of shoot and the calyx pale fulvous. Peduncles 
1-flowered, hairy, about 1 in. long, with a pair of short persistent fili- 
form bracts at the middle. Calyx very hairy, 4 lin. long. Sepals 
lanceolate to ovate, acute. Corolla not seen. Capsule globose, pale 
brown, glabrous, 4 lin. in diam., shortly beaked with the persistent 
style-base. Seeds glabrous, black, areolate.—C. sagittatus, var. grandi- 
florus, subvar. subcordata, Hallier f. in Bull. Herb. Boiss. vi. 534 partly ; 
Hiern in Cat. Afr. Pl. Welw. i. 726. Ipomea huillensis, Baker in Kew 
Bulletin, 1894, 70. 
Lower Guinea. Angola: Huilla; Ferrao da Sola, 3800-5500 ft., Welwitsch, 
6131! 
20. C, arvensis, Linn. Sp. Pl.ed.1,153. Perennial. Stem wide- 
climbing, glabrous or slightly pubescent. Leaves ovate-hastate, 1-2 
in. long, with spreading or deflexed usually acute basal lobes ; petiole 
2-1 in. long. Flowers 1-3, laxly cymose; peduncle long, slender, 
flexuose ; pedicels longer than the calyx, }—} in. ; bracts short, narrowly 
linear, Sepals coriaceous, subequal, elliptic-oblong, obtuse, ¢ in. long, 
glabrous or slightly pubescent, especially on the margin. Corolla broadly 
funnel-shaped, 9 lin. long, pinkish-white. Capsule globose, glabrous, 
3 lin. in diam. Seeds glabrous.—Choisy in DC. Prodr. ix. 406 ; 
VOL. IV.—SEC. 2. - 
