260 XCVIII, ACANTHACEE (CLARKE). | Dicliptera. 
12. D. angolensis, S. Moore in Journ. Bot. 1880, 362. Stem 
6-angular, glabrous or in places hispid. Leaves 1} by 3 in., ovate- 
lanceolate, minutely hispid or glabrate; petiole 4 in. long. Heads 
terminal and axillary, ovoid }-1 in. diam. Two bracts of the 
spikelet 3 in. long, obovate-lanceolate, apiculate, slightly pubescent or 
nearly glabrate (margins thinly ciliate), somewhat coriaceous. Calyx 
} in. long. Corolla } in. long. Filaments glabrous; one anther-cell 
completely above the other. 
Lower Guinea. Angola: Golungo Alto and Bumba, 3000-7500 ft., Welwitsch, 
5116, 5132! 5168! Huilla, Antunes, 142, 179! 
This is very close to D, umbellata, Juss.; but the heads are much less hairy than 
in any example of that species. 
13. D. colorata, C. B. Clarke. Angles of branches 6, patently 
hispid. Leaves up to 2 by 1} in., ovate, acute, sparsely hispid, base 
rounded or sometimes subcordate: petiole jin. long. Heads terminal 
and many axillary, ovoid, #-1 in. in diam. Two bracts of the 
spikelet 4} by 4 in., lanceolate, mucronate, dark-brown or purplish- 
brown (even before the expansion of the corolla), with spreading white 
hairs. Corolla 3 in. long. Filaments hairy; one anther-cell completely 
over the other. Pistil glabrous but for a few scattered hairs on the 
style. 
Nile Land. British East Africa: Raomi River, 7000 ft., Scott-Elliot, 6766! 
Mozamb. Dist. British Central Africa: Nyasaland: Nyika Plateau, 6000- 
7000 ft., Whyte? 
The brown or purple-brown bracts give this plant a marked look, but it is very 
near D. wmbellata, 
14. D. Leonotis, Dalz. ex C. B. Clarke in Hook. f. Fl. Brit. Ind. 
iv. 553, Stems 6-8-angular, pubescent. Leaves up to 3 by 1 ny 
elliptic lanceolate, pubescent. Heads globose, dense, axillary and 
approximated towards the ends of the branches. ‘Two bracts of the 
spikelet }-} by 3:-y45 in., lanceolate, 3-nerved, pubescent. Corolla 
exceeding { in. in length. Filaments glabrous; one anther-cell com- 
pletely above the other. 
Mozamb. Dist. British Central Africa: Nyasaland: Blantyre, very plentiful 
on the banks of streams and in shady places, Buchanan, 127! uear Sekwere Village, 
Kirk ! and without precise locality, Buchanan, 568 | 
Also in India, 
In the Nyasaland examples, the plants are rather stronger, the leaves more hairy, 
the heads larger than in the Bombay examples ; but the differences hardly suffice to 
characterise a geographic form. 
15. D. nilotica, C. B. Clarke. Plants 4-8 in. long; branches 
angular, pubescent. Leaves up to 2 by % in., elliptic-oblong, hardly 
acute, minutely hairy ; petiole 4 in. long. “Heads dense, small (hardly 
3 in. in diam.), terminal, or the axillary heads mostly pedunc'ed (ter- 
minal or shortened lateral branches) ; floral leaves linear-oblong. Two 
bracts of the spikelet }-l in. long, narrowly obovate-oblong, hairy. 
Calyx hardly } in. long. Corolla } ir, long; lips unusually broad. 
Lo 
