Qrfvoa.] LVII. MELASTOMACE.E (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, pore 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 facets, 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, 3-5- nerved. Flowers in scorpioid 

 cymes-, rather small, rosy. 



Glabrous, succulent. Leaves sinuate-toothed 1.0. sinuata. 



Hoary, succulent ? Leaves sinuate-toothed 2. C. crassinoda. 



Densely pubescent. Leaves denticulate 3. C. Mrsuta. 



1. C. sinuata, Hook. f. Glabrous. Stem 2 ft., stout, 4-angled, 

 simple or branched, nodes thickened. Leaves 2-3 in. by l|-2 in., suc- 

 culent, ovate or suborbieular, cordate, recurved, obtusely acuminate, 

 coarsely sinuate -toothed, 5-7-^ierved ; petiole slender, 1-2 in. Flowers 

 rose-red, in simple or 2-fid scorpioid cymes, f-1 in. diameter, shortly 

 pedicelled. Calyx- tube |-J in., turbinate ; limb dilated, obtusely 5- 

 lobed. Petals broadly obovate, acuminate. Anthers l-12th in., linear- 

 oblong, incurved ; connective shortly produced, dilated and 2-auricled 

 at the base. Capsule J 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, Btirter ! 

 A very succulen 

 for the description 



A very succulent plant, with difficulty analyzed, hence some allowance must be made 

 des 



2. C. crassinoda, Booh. 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 2J-3J in. by 

 1-1 J in., succulent, broadly elliptic-ovate, obtuse, obtusely sinuate- 

 toothed, 3-5-nerved ; petiole J-l in., slender. Flowers in elongate, 

 axillary and terminal, simple or forked, scorpioid cymes, shortly pedi- 

 celled. Calyx-tube Jin., narrowly campanulate; lobes 5, short, tri- 

 angular, with a dorsal tubercle at the tip. Anthers linear-oblong; 

 connective produced into a stout prolongation which bears a scutelli- 

 form disk at the middle in front. Capsule | in., very strongly ribbed, 

 3-celled ; scales level with the top of the calyx-tube. 



Upper Guinea. St. Thomas's Island, on the top of the Peak, Mann I Specimen 

 very imperfect. 



3. C. hirsuta, Hook. f. A small branched annual herb, 6-8 in. 

 high, hairy or hirsute, stem terete. Leaves lj-2^in. by f-ljin., 



