Cycas. | CXXX, CYCADACE®M (Prain). 345 
1. CYCAS, Linn. ; Benth. et Hook. f. Gen. Pl. iii. 444. 
Cones 1-sexual, dicecious. Male apparently terminal, peduncled ; 
scales cuneate, closely imbricate ; apex often long-acuminate ;_ pollen- 
sacs ellipsoid, in groups of 3-5 on the lower face. Female blades 
numerous, crowded round the apex of the ultimately produced 
stem, densely woolly, at first appressed into a terminal cone, soon 
spreading, elongate, flattened, dilated upwards, entire, crenate or 
pectinate. Ovules 1-5, in notches on either side of the stalk, rather 
remote, alternate or opposite, nearly erect. Seeds ellipsoid or globose. 
—Shrubs or small trees with a simple or casually branched cylindric 
trunk clothed with the woody bases of the petioles. Leaves in 
terminal crowns, linear-oblong, pinnate ; pinnules linear, 1-nerved, 
quite entire, circinate in bud ; lower often reduced to spines. 
Species about 12, extending from tropical East Africa to Polynesia. 
1. C. Thouarsii, R. Br. Prodr. 347 (Thuarsii). Stem well- 
developed, cylindric, casually branched when old, 12-20 ft. high, 
1} ft. thick. Leaves 5-9 ft. long, 1-2 ft. wide above the middle, 
bright green, shining above, rather paler beneath; petiole and 
rhachis slightly angular, quite glabrous ; pinnules very coriaceous, 
60-70 pairs, linear, gently curved, 8-15 in. long, 4—} in. wide, slightly 
unequally attenuated at the base the lower edge there shortly de- 
current and somewhat concave, apex acutely acuminate slightly 
indurated, margin entire on either edge, midrib grooved above. 
Male cone shortly peduncled, brown, oblong-cylindric, 1-13 ft. long, 
5-6 in. wide ; peduncle under 2 in. long, sparingly brown-pubescent ; 
scales horizontally spreading, obovate-deltoid, 14-2 in. long, $—} in. 
wide, with a barren glabrous basal portion ? in. long, fertile portion 
glabrous, 1-1} in. long, considerably longer than broad, apex barren, 
triangular, curved sharply upwards, acute or shortly acutely acumi- 
nate, # in. long, clothed externally with close brown tomentum, 
glabrous above. Female blades 9-12 in. long; stalk long, rusty- 
pubescent, with 4-5 pairs of ovules above the middle, passing in- 
sensibly into the ovate-lanceolate lamina, which is 3-4 in. long, 
3-11 in. wide, apex acute, margin crenulate or subentire, glabrous 
on both sides towards apex and margins, elsewhere closely rusty- 
pubescent. Seeds ovoid-globose, 2-2} in. long, 1? in. wide; outer 
coat, red (Engler).—Miq. in Tijdschr. Wis. en Nat. Wetens. ii. 287, 
Arch. Neérl. iii. 236, Nieuwe Bijdr. Cycad. 40, and Adansonia, ix. 
56, 366; Lem. Ill. Hort. 1864, [4] sub t. 405; DC. Prodr. xvi. 11. 528 ; 
A. Br. in Verh. Bot. Ver. Brand. xviii. 1875, Sitzungsb. 15, and in 
Sitzungsb. Gesellsch. Naturf. Freunde, Berl. 1876, 113; Duchartre 
in Bull. Soc. Bot. Fr. xxxv. 247; Baron in Journ. Linn. Soc. Bot. 
xxv. 268; Eichler in Engl. & Prantl, Pflanzenfam. ii. 1. 21; 
Warburg, Monsunia, i, 180, 181; Drake del Castillo in Madagascar 
