344 CXXIXa. TAXACEM (Stapf). | Podocarpus. 
vertically erect branches, the barren specimens of which match completely 
with examples of “<P. latifolius ” from South Africa, and he adds that it 
differs from P. milanjianus in the very shortly tapering leaves. The 
description of the habit does not suggest P. latifolius, R. Br., by which 
is here evidently meant P. Thunbergii, Hook. (see Kew Bulletin, 1916, 236). 
Orper CXXX. CYCADACE:. 
(By D. Pratn.) 
Cones dicecious. Males one or more, terminal or subterminal, 
composed of numerous thickly coriaceous or fleshy flat or variously 
peltate scales, bearing on the under surface crowded 1-celled pollen- 
sacs. Females terminal or subterminal, composed of flat or thickened 
variously peltate scales or, less often (Cycas), of flat blades crowded 
round the apex of the stem; ovules large, sessile, orthotropous, 
solitary and inverted on either side of the peltate scales of the female 
cone, or (Cycas) several and erect in notches along the margins of 
the blades. Seeds large, drupaceous, with a more or less fleshy outer 
coat and a crustaceous or bony inner coat ; albumen copious, at first 
fleshy, at length horny, with one or more embryonic cavities ; 
embryo usually solitary by abortion, slender ; cotyledons 2; radicle 
superior, attached to the crumpled suspensory cord.—Shrubs or small 
trees with a thick simple, rarely forking stem crowned with a terminal 
tuft of leaves, or stemless with the leaves arising from a tuberous 
simple or branched rootstock. Leaves in alternate series of short 
coriaceous scales and of palm-like pinnate, rarely 2-3-pinnate fronds 
with membranous or coriaceous often marginally toothed leaflets 
(pinnules) which are usually many-nerved with the nerves parallel, 
rarely (Stangeria) anastomosing, sometimes (Cycas) 1-nerved. 
Species about 80, natives of the tropics and of southern subtropical and 
temperate regions, 
Leaflets (pinnules) l-nerved, their margins entire, in 
bud circinate ; male cones approximately terminal ; 
aioe cone sd ier ‘ ovules erect, 2 or more along 
ither margin of the stalk of an at 
elongated blade ‘i ie ‘ naan euries : 
1. Cycas. 
Leaflets (pinnules) many-nerved, the nerves close-set 
and longitudinal, their margins (in the tropical 
species) usually toothed, in bud straight ; both male 
and female cones approximately terminal or only 
subterminal ; ovules inverted, solitary on either side 
of a peltate scale a sey a ... 2, ENCEPHALARTOS. 
