282 OXXIIIp. URTICACE® (Rendle). | Elatostema. 
stalked ; perianth minute, deeply 3-partite, segments hyaline, 
orbicular, about } lin. long in the fruiting stage. Achene shortly 
stalked, brown, ovate-ellipsoid, about } lin. long; pericarp longi- 
tudinally wrinkled ; stalk after fall of fruit 1 lin. or less in length.— 
Wedd. in DC. Prodr. xvi. i. 187. 
Upper Guinea. Cameroons: Cameroon Mountain at 7000 ft., Mann, 2014! 
Buea, 6200-7000 ft., Preuss, 607 ! 
6. E. parvulum, Engl. in Engl. Jahrb. xxxiii. 127. A small herb 
about 4 in. high, branched in the upper two-thirds of its length with 
a few erect-spreading branches ; lower and middle internodes rather 
long, the upper short, scarcely 24 lin. long. Stem and midrib 
densely hairy. Leaves sessile, deep green above, obliquely oblong, 
acuminate, margin with 2-4 blunt teeth on each side, 7-12 lin. long, 
5-6 lin. wide, tip 2} lin. long ; upper face deep green, sparsely hairy 
and provided with linear cystoliths, grey-green beneath. Female 
inflorescence short, few-flowered; bracts oblong, pellucid, ciliate, 
13-2 lin. long, the outer longer than the inner, the outermost 1 hin. 
wide. Perianth-segments lanceolate. Achenes ellipsoid. 
Lower Guinea, Island of St. Thomas, at about 5000 ft., Quintas, 152. 
?. BE. Mannii, Wedd. in DC. Prodr. xvi. i. 178. A moncecious 
herb ; stems rising erect from a decumbent rooting base which sends 
out slender rooting suckers, simple or sometimes slightly branched, 
somewhat succulent, 6 in. to 1 ft. high, 1-14 lin. thick, surface rough 
with crowded linear cystoliths, somewhat hispidulous in the younger 
portion. Leaves crowded on the upper third of the stem, a few 
small ones at the lower nodes, stiffly membranous when dry, sessile 
or very shortly stalked, obliquely obovate-lanceolate, apex abruptly 
acuminate, base cuneate, slightly unequal, entire, margin crenate- 
serrate above the base, teeth mucronate, 2-34 in. long, 7-14 lin. 
wide, lateral nerves 4-6 on each side, the two lowest springing from 
the midrib above the base, that on the narrow side appreciably 
higher, about } in. from the base, and reaching to about the middle 
of the leaf; upper face glabrous, densely covered with linear white 
cystoliths and punctulate, lower face sparsely hispidulous on the 
somewhat prominent veins, cystoliths sparse. Stipules persistent, 
lanceolate, acuminate, 2-3 lin. long, apex sometimes 2-fid. Male 
inflorescence on a slender stalk 4-2 in. long; cyme broadly 2-lobed, 
2-4 lin. in greatest diam.; involucral bracts broadly ovate, acute 
or shortly acuminate, ciliolate, marked on the back with numerous 
linear cystoliths, 13-2 lin. long, inner bracts becoming narrower to 
rusts, pilosulose ; perianth deeply 4-partite, segments about 
1} lin. long, bearing an erect dorsal mucro 3-3 lin. long; stamens 
attached above the base. Female cymes sessile, smaller than the 
male in the flowering stage; involucral bracts bluntly and broadly 
