68 XC. CONVOLVULACEX (BAKER AND RENDLE). | Kvolvulus. 
shape of the leaf, relative length of the peduncle and general hairiness. Schwein- 
furth (followed by Hallier and Hiern) recognises two varieties, procumbens (£. 
alsinoides, Linn.) and erectus (BE. linifolius, Linn.), but, as I find it impossible to 
say to which form many of the specimens belong, I prefer to consider them all 
under the species. Some specimens credited to var. erectus are young plants, which 
perhaps become procumbent later. 4. B. R. 
Also in South Africa, and widely distributed in the Tropics. 
2. E. nummularius, Linn. Sp. Pi. ed. 2,391. A perennial herb, 
with the habit of Dichondra repens; stems shortly hairy, trailing, 
4_1 ft. long, rooting from the nodes. Leaves orbicular or orbicular- 
obovate or elliptic, apex very obtuse, truncate or retuse, about 6 lin. 
long and broad ; petiole very short. Flowers few, solitary in the axils 
of the Jeaves,-on very short recurving peduncles. Sepals ovate to 
elliptic-ovate, subacute, pubescent or nearly glabrous, with ciliate 
margins, about 1} lin. long. Corolla white, subrotate, twice as long as 
the calyx, deeply lobed; lobes obovate. Capsule globose, 14 lin. in 
diam., 1-celled, 2-valved. Seeds 2—4, black or brown, shining.—Choisy 
in DC. Prodr. ix. 445; Hallier f. in Engl. Jahrb. xviii. 85; Hiern in 
Cat. Afr. Pl. Welw. i. 723. EF. dichondroides, Oliver in Trans. Linn. 
me cere. 117, t. (98. 
Wile Land. Upper Nile: Freeman g° Lucas! Bongo: Lesi River, Schwein 
furth, 4011! Uganda, Speke & Grant, 524! British East Africa : Sabaki Valley, 
Gregory ! 
Lower Guinea. Angola: Huilla; near Lopollo and by Lake Ivantala,. 
Welwitsch, 6136! 
Also in Tropical America. 
5. HILDEBRANDTIA, Vatke; Benth. et Hook. f. Gen. Pl. ii. 1248. 
Dicecious, flowers small, 4—5-merous. Sepals in the male flower sub- 
equal, in the female flower 2 or 3 outer much larger than the inner, accre- 
scent. Corolla minute, several times longer than the calyx in the male 
flower, slightly protruding beyond it in the female, funnel-shaped, 4—5- 
lobed. Filaments glabrous; anthers oblong, exserted, aborted in the 
female flower. Ovary glabrous, 2-celled, 4-ovuled, smaller and sterile in 
the male; styles 2; stigmas somewhat horseshoe-shaped, with a pair of 
irregularly crenately lobed branches. Capsule concealed by the two 
large membranous, orbicular, veined, accrescent outer sepals, 4-valved, 
2-celled. Seeds 1-4, trigonous, glabrous.—Much-branched shrubs; 
some branches elongated, spreading, erect, or climbing, others short 
and tuberculiform ; leaves alternate along the young elongated shoots, 
or fascicled on the dwarf shoots, small, cuneate-spathulate, subsessile- 
Flowers axillary on the dwarf shoots, subsessile in the male, on slender 
stalks in the female. 
Species 4; endemic. 
Flowers tetramerous. 
Inner pair of sepals of female flower minute, not 
accrescent, 
