Dissotis. | LVII. MELASTOMACEZ (HOOKER). - 449 
long as the tube, acuminate, glabrous, not ciliate, persistent. Petals 
(young) orbicular, apiculate, red-purple. Capsule 5-valved, tip bristly. 
Upper Guinea. Sierra Leone, Afzelius! Grand Bassa, T. Vogel! 
4. D. (Heterotis) Afzelii, Hovk. 7. Branches stout, elongate, 
flexuons (climbing ?), densely villous, more bristly at the nodes with 
spreading deflexed stiff and curled hairs. Leaves 2—2 in. oy 1-1} in., 
ovate, subacute, 5-nerved, quite entire, base rounded or cordate, upper 
surface sparsely clothed with appressed or spreading hairs, under sur- 
face hirsute ; petiole 4-4 in. hirsute. Flowers 1-14 in. in diameter, 
capitate, shortly pedicelled; outer bracts leafy, inner broadly ovate, 
equalling the calyx, subscarious, ciliate, persistent. | Calyx-tube ovoid, 
$in., covered with simple or pedicelled stellately or palmately ar- 
ranged bristles; lobes 5, ovate-lanceolate, half the length of the tube, 
ciliate, bristly at the tip and back, persistent. Petals large, broadly 
obovate. Anthers of long stamens } in., equalling the connective, 
appendage clavate entire. Capsule sunk in the subcampanulate calyx- 
tube, which is 4 in. long, crown free, 5-valved, bristly at the tip. 
Upper Guinea. Sierra Leone, Afzelius / 5 
Habit of Tristemma involucratum, but calyx and anthers very different. Afzelius 
in 4 ms. note states the stamens to be 5, a point I cannot determine from his imperfect 
Specimens. 
5. D. (Heterotis) thezefolia, Benth. in Fl. Nigr. 351. A small pale 
shrub. Branches stout, white, obtusely 4-angled, scabrid with minute 
very distant short bristles; nodes with few long erect stiff bristles. 
Leaves subsessile, 1-23 in. by $-1 in., oblong-lanceolate or linear-ob- 
long, obtuse or subacute, rigidly coriaceous, 3—nerved, equally guard 
strigillose and green on both surfaces. Heads many-flowered, sessile 
between the upper pair of leaves, 1-14 in. in diameter in fruit; outer 
bracts foliaceous, scabrid; inner imbricate, very broad, truncate, hard 
and coriaceous,. pale, quite smooth, edges membranous, persistent. 
Flowers sessile, 14 in. in diameter, dull purple. Calyx-tube oblong, 
2 in., smooth, glabrous, terete, base without bristles; lobes ovate- 
anceolate, acute, membranous, half as long as the tube, persistent. 
Petals broadly obovate. Anthers of long stamens 4 in., connective 
nearly as long; connective of short stamens very short. Capsule 
eset pce nearly free, 5-valved at the tip, with an apical ring of 
ristles, 
papper Guinea. Sierra Leone, Afzelius! Don! Abbeokuta, Irving! Onitscha, 
arter | 
6. D. (Heterotis) capitata, Benth. in Fl. Nigr. 852. A small 
Shrub. Stems robust, erect or weak and flexuous, diffusely branched, 
branches obtusely 4-angled, more or less scabrid; nodes with 1-2 
short erect bristles. Leaves 3—5 in. by 1-2 in., ovate, acute, 5—7-nerved, 
sparsely strigose above, pale and nearly glabrous (with few microscopic 
hairs) eneath; petiole 1-1 in. Heads few-flowered; outer bracts 
leat’y, variable in size and shape; inner oblong, acute, membranous, 
crinite with long hairs towards the base, persistent. Calyx-tube 4 in., 
VOL, II, GG 
