Calvoa. | LVII, MELASTOMACEE (HOOKER). 457 
9. CALVOA, Hook. f.; Benth. et Hook. f. Gen. Plant. i. 755. 
Calyx-tube turbinate or campanulate, produced beyond the ovary ; 
limb truncate, deciduous, 5-toothed. Petals 5, obovate or oblong. 
Stamens 10 equal, or 5 smaller, suberect, anthers linear, a single ; 
connective shortly or not at all produced, dilated tubercled in front, 
not spurred behind. Ovary adherent, 3—5-celled, top concave, angled, 
smooth ; style filiform, stigma obtuse. Capsule included in the coria- 
ceous, campanulate, ribbed calyx-tube, surmounted by 3-5 depressed, 
scale-like pce corresponding to as many cells and valves. Seeds 
minute, oblong or obovoid; hilum basilar, raphe much thickened, ex- 
tended beyond the nucleus.—Herbs or small shrubs of tropical West 
Africa, often succulent; branches terete or 4-angled, with thickened 
nodes. Leaves long-petioled, ovate, 8—5-nerved. Flowers in scorpioid 
cymes, rather small, rosy. 
Glabrous, succulent. Leaves sinuate-toothed . . sinuata. 
reel ee Of 
Hoary, succulent ? Leaves sinuate-toothed: =<. esses 3s 220. crassinoda, 
Densely pubescent. Leaves denticulate 3. C. hirsuta. 
1. C. sinuata, Hook. f. Glabrous. Stem 2 ft., stout, 4-angled, 
simple or branched, nodes thickened. Leaves 2-3 in. by 14-2 in., suc- 
culent, ovate or suborbicular, cordate, recurved, obtusely acuminate, 
coarsely sinuate-toothed, 5—7-nerved ; petiole slender, 1-2 in. Flowers 
Tose-red, in simple or 2-fid scorpioid cymes, 3-1 in. diameter, shortly 
pedicelled. Calyx-tube 1—lin., turbinate; limb dilated, obtusely 5- 
obed. Petals broadly obovate, acuminate. Anthers 1—12th in., linear- 
oblong, incurved ; connective shortly produced, dilated and 2-auricled 
at the base, Capsule } in., turbinate-campanulate, coriaceous, 5-celled, 
strongly ribbed ; scales level with the mouth of the calyx-tube. 
Upper Guinea. Rocky islets near Prince’s Island, Barter / 
f very succulent plant, with difficulty analyzed, hence some allowance must be made 
or the description. ; 
2. C. crassinoda, Hook. f. Minutely hoary-puberulous. Stem 
shrubby, erect, 5-6 ft., stout, terete; nodes close set, very much thick- 
ened and covered with thickened concave scars. Leaves 24-3} in. by 
1-1} in., succulent, broadly elliptic-ovate, obtuse, obtusely sinuate- 
toothed, 3—5-nerved ; petiole 4—-lin., slender. Flowers in elongate, 
axillary and terminal, simple or forked, scorpioid cymes, shortly pedi- 
celled. Calyx-tube }in., narrowly campanulate; lobes 5, short, tri- 
angular, with a dorsal tubercle at the tip. Anthers linear-oblong; 
“onnective produced into a stout prolongation which bears a scutelli- 
form disk at the middle in front. Capsule } in., very strongly ribbed, 
8-celled ; scales level with the top of the calyx-tube. 
Upper Guinea. St. Thomas's Island, on the top of the Peak, Mann! Specimen 
very imperfect. 
3. G. hirsuta, Hook. Jf. A small branched annual herb, ean. 
high, hairy or hirsute, stem terete. Leaves 1}-2}in. by j-ljin., 
