Crabbea. | XOVIII. ACANTHACEE (CLARKE). 119 
2. C. hirsuta, Harvey in Hook. London Journ. Bot. i. (1842) 27. 
Mature leaves hairy on the lower surface. Heads sessile or nearly so ; 
outermost floral-leaves hairy. Posticous sepal 3 by } in. ; anticous each 
3 by jy in.; inner two } by jy in.—Nees in DO. Prod. xi. 163; 
T, Anders. in Journ. Linn. Soe. vii. 32; Lindau in Engl. Jahrb. xvii. 63, 
t.1, fig. 28, and in Engl. & Prantl, Pflanzenfam. iv. 3 B. 313, and var. 
somalensis in Ann. Istit. Bot. Roma vi. (1896) 71. 
Nile Land. Somaliland: Burgi, Riva, 1347! 
This species differs very little from C. xana, The Somali specimen is said by 
Lindau to differ from the Cape type by having the “bracts less acuminate, more 
glabrate” ; but I see no “varietal” difference even. 
3. C. velutina, S. Moore in Journ. Bot. 1894, 135. Branches 
2-6 in. long, hairy. ‘Leaves up to 9 by 2 in., oblong-elliptic, hairs on 
the upper surface scattered, on the lower chiefly along the nerves, 
cystoliths obscure above but conspicuous beneath, tip subobtuse, margin 
minutely crenulate, base long tapering; petiole 4-1 in. long. Heads 
1~13 in. in diam.; peduncles }-14 in. long; outer floral-leaves 1 in. 
long, shining, glabrescent, with marginal teeth }-} in. long. Calyx 
in. long ; posticous sepal elliptic-lanceolate, more than twice as broad 
as the others. Corolla white (Zugard). Capsule } in. long, slender ; 
otherwise nearly as C’. nana.—Lindau in Engl. Pfl. Ost-Afr. C. 368. 
Wile Land, British East Africa: Mombasa, Taylor ! 
Mozamb. Dist. Portuguese East Africa: Shamo, near the mouth of the River 
Shire, Kirk! Lower Zambesi; Lupata, Kirk! British Central Africa: Nyasaland, 
Buchanan, 906! Ngamiland ; Kwebe, Lugard, 131! 
4. C. reticulata, (. B. Clarke. Leaves up to 4 by 1 in., narrow 
oblong-elliptic, hairy on both surfaces, cystoliths obscure, secondary 
veins prominent on the lower face, margin minutely crenulate, tip 
snbobtuse, base long attenuate ; petiole 0-} in. long. Heads f-1j in. 
in diam. ; peduncles 4-1} in. long; outer floral-leaves up to 1 in. long, 
Pubescent, marginal spines 4-1 in. long. Calyx scarcely 3} in. long ; 
Posticous sepal lanceolate, nearly twice as wide as the others. Corolla 
in. long, white. 
Wile Land. British East Africa: Ukamba, 4000 ft., Scott-Elliot, 2309! 
Mozamb. Dist. German East Africa: Karagwe, 4000-5000 ft., Scodt- 
Elliot, 8147 ! 
30. THOMANDERSIA, Baill. Hist. Pl. x. 456. 
Calyx-tube 4-4 in. long, wide-cylindric ; lobes 5, subequal, ovate, 
Corolla # in. long; tube 3 in. long, 2-lipped ; anticous -lobed lip longer, 
folded down over the other in the bud. Stamens 4, subsimilar ; anthers 
of 2 muticous oblong cells at equal height; pollen subglobose, smooth, 
with 6 slender longitudinal depressions. Ovary and style glabrous ; 
Stigma of 2 short unequal branches ; ovules 2 in each cell, superposed. 
apsule globose-ellipsoid, compressed, very woody, 2-seeded, sometimes 
