840 CXXII. EUPHORBIACEH (PRAIN), [ Manihot. 
petiole above; petiole glabrous, 4-6 in. long; stipules 2~3 lin: long, 
pale green, ovate-lanceolate, denticulate. Racemes paniculate, from the 
forks of the younger twigs, panicles pyramidal; bracts lanceolate, 
denticulate below, entire higher up, under 2 lin. long; pedicels about 
4 in. long; flowers nodding, those at the base of each raceme female, 
opening some days before the more numerous males higher up. Calyx 
$ in. long or rather longer, glabrous outside and within, campanulate, 
the male 5-fid, the female 5-partite, green blotched with purple at the 
base. Stamens 10; filaments glabrous, outer longer than inner ; anthers 
‘with the connective slightly hairy at the tip. Ovary glabrous, sub- 
globose. Disk glabrous. Capsule globose, 3-$ in. across, wingless, 
plicate-rugose, grey. Seed flattish, 4 in. long, 4 in. wide, grey marbled 
with brown.—Trimen in Journ. Bot. 1880, 321. t. 215; Kew Rep. 
1880, 17, with plate; Pax in Engl. and Prantl, Pflanzenfam. iii. 5, 79, 
fig. 48; Kew Bulletin, 1898, 1; De Wild. Miss. E. Laurent, 134, fig. 
17-21, and Etudes FI. Bas- et Moyen-Congo, i. 278 and ii. 287 ; Dawe, 
Miss. Bot. Uganda, 56; Th. & Hél. Durand, Syll. Fl. Congol. 490; Pax 
in Engl. Pflanzenr. Euphorb.-Adrian. 89, fig. 31. Manihot sp., Pax in 
Ann. Istit. Bot. Roma, vi. 185. 
Native of Brazil, widely cultivated as a rubber-plant in Tropical Africa. The 
Ceara Rubber or Manicoba. 
The figure in the Kew Report for 1880 is a reproduction, that of the Pflanzen- 
familien repeated in the Pflanzenreich is an adaptation of the original drawing 
made by Fitch for Trimen. 
Var. alienigena, Prain. Shrub or small tree, 10-12 ft. high ; yielding rubber. 
Leaves long-petioled, membranous, peltate, some of the uppermost entire, the 
others palmately 3-5-lobed, 3-4 in. long, when entire 1 in., when lobed 4-5 in. 
wide; lobes wide-spathulate, rounded or subacute with a long terminal mucro, 
separated by wide rounded sinuses, their margins entire, the basal pair almost 
horizontal, central largest lobe 2-3 in. long, 1-14 in. wide, very glaucous beneath. 
Calyx white, blotched with purple at the base. Capsule globose, 4-3 in. across. 
Mozamb. Distr. Mozambique: Buzi district, Lusitania estate, cultivated, 
Johnson, 67! 
Doubtless also imported from Brazil. Johnson notes that this is “quite distinct 
from M. Glaziovii,” with. drooping branches, white female flowers with purple 
marks inside, only growing to about one-fourth the size of M. Glaziovu, with 
smaller trunk, leaves and fruit, and with thinner leaves of a paler green. The wide 
sinuses, whereby the lobes of the leaves, instead of being in contact or overlapping in 
their lower third, are separated from each other by interspaces 4-4 in. across, 
impart a distinct facies to the foliage. But exeept as regards its smaller size, 
var. alienigena does not otherwise differ essentially from M. Glaztovii. The seeds 
are said to have been received slong with a consignment of seeds of IZ. Glaziov 
supplied to the Lusitania estate by Messrs. Vilmorin, Andrieux & Cie. 
2. M. piauhyensis, Ule in Notizbl. Kénigl. Bot.Gart. Berlin, v.No.41, 
2, and No. 41a, 18, 23, fig. 1 C-H, fig. 2 C-E. Shrub, 6-16 ft. high ; twigs 
tawny-tomentose, soon glabrous; stems yielding rubber. Leaves rae 
petioled, firmly membranous or chartaceous, not peltate, some of ti 
uppermost occasionally 3-lobed, the others palmately 5-7 -lobed, 4 a 
long, 7-8 in. wide ; lobes free almost at the base, obovate-cuneate, reset 
or slightly retuse, very distinctly mucronulate, gradually narrowe 
