Spermacoce. | LXX. RUBIACEZ (HIERN). 239 
Mile Land. At Ukidi, Speke et Grant! (Mitracarpum, sp. n. 1, Thoms. in 
Speke, Journ. App. p. 636; Spermacoce hebecarpa?, Oliv. in Trans. Linn. Soc. Lond. 
xxix. p. 89); Djur-land, (‘Spermacoce ampliata.’) Schweinfurth ! 
Lower Guinea. Congo, Chr. Smith! 
Occurs also at Delagoa Bay and Madagascar. 
14, S. dibrachiata, Oliv. in Trans. Linn. Soc. Lond. xxix. p. 87, 
t. 52. A rigid branched or subsimple annual herb, 9-18 in. high. 
Stem and branches hispid with white hairs. Leaves lanceolate, sub- 
acute, somewhat narrowed at the sessile base, rigid, rugose above, 
scabrous on the midrib and revolute margin beneath, 2-3 by 3-4 in., 
lateral veins inconspicuous ; stipules with long hispidulous sheath and 
about 3 setae about the same length. Upper internodes usually long. 
Flowers 4-3 in. long, very numerous, densely packed in terminal and 
subterminal sessile heads, based by the dilated stipules of the upper- 
most leaves; bracteoles filiform, very numerous. Calyx-teeth 4, nar- 
rowly subulate, subequal, longer than the glabrous ovary, turning 
rigid. Corolla sky-blue or purple, salver-shaped; tube slender, 
glabrous except the tips of the lobes, exceeding the calyx-teeth. An- 
thers exserted, white. Stigma subcapitate, bilobed, exserted. Fruit 
dehiscing as in the type of the genus.—Spermacoce, sp. n. 2, T. Thoms. 
in Speke, Journ., App. p. 636. 
Wile Land. Karagué, alt. 5000 ft. Speke § Grant ! . 
Mozamb. Distr. Manganja hills, alt. 3000 ft. Kirk! Meller! Zambesi-land, 
ewart | 
15. S. Kotschyana, Oliv. in Trans. Linn. Soc. Lond. xxix. p. 88, 
t. 58. Erect, not much branched, 3-13 feet high. Stem glabrous, 
subterete below, somewhat scabrous on the 4 angles above. Leaves 
ear, acute, sessile, scabrous above, somewhat hispid beneath, 1}-3 in. 
long, the floral ones dilated at the base into the hairy stipular sheath 
which is tipped with about 5-7 longer sets. Flowers small, numerous, 
Crowded in dense verticillate terminal and axillary leafy and brac- 
teate heads of 1 in. diam. ; bracteoles linear-filiform, very numerous, 
pale reddish, exceeding the calyx-teeth. Calyx-teeth 4-3, subequal, 
subulate, ciliate with paleaceous hairs, as long as the ovary, rather 
shorter than the fruit. Corolla-tube about equalling the calyx-lobes ; 
lobes 4-3, short. Fruit pubescent towards the apex.—Spermacoce, sp. 
n. 3, Thoms, in Speke, Journ., App. p. 636. 
Mile Land. Madi, in low grounds near water, Speke § Grant! Sennaar, 
Kotschy ! 
16. S. compacta, Hochst. in Hb. Kotsch. Nub. n. 240 (1841). A 
glabrons, erect, simple or branched annual, 8-16 in. high. Stem 
marked with narrow raised lines. Leaves linear or narrowly oval, 
narrowed at both ends, 1-2 in. long, somewhat scabrous on the mar- 
8ins; the floral leaves dilated at the base into the glabrous or puberu- 
lous sheath of the stipules which are tipped with about 5 rather longer 
Sete. Flowers small, numerous, densely crowded in verticillate leafy 
Sessile terminal and axillary heads of 4—3 in. diam.; bracteoles very 
numerous, paleaceous-filiform, exceeding the calyx-teeth. Calyx-teeth 
