384 
_LEPIDODENDRON NoTHUM (Unger). 
Sears of the leaf contiguous, rhombic, with a single and 
generally central vascular scar; leaves small, peitate and 
imbricate, on long slender petioles, fruit produced on the 
apices of the thick branches, a single sporangium, almost 
sessile, borne on the middle of the petiole of the leaf, roots 
stigmarioid. 
Localities—_N.S. WALES—Cowra, Canowindra, Goonoo-Goonoo 
Creek. QUEENSLAND—Mount Wyatt, Drummond Range, Ryedale, 
Mount Lambie. 
References.—Unger, Deuksch K. Akad, Wien, 1856, XI., p. 175, 
t. 10, f. 4-8 ; Carruthers, Quart. Jour. Geol. Soc., 1872, XXVIII, 
pp. 350, 353, t., 26, f. 1-5, f. 7-14; Tenison-Woods, Proc. Lin. Soc., 
N.S. Wales, 1883, Vol. VIII, pt. 1, p. 185; R. Etheridge, jun, 
Cat. Aust. Fossils, 1878, p. 31. 
LrEPIDODENDRON VELTHEIMIANUM (Sternberg). 
Localities. -EuropE—Silesia, Hartz Mountains, Upper Vosges. 
AUSTRALIA— 1). 
References.—h. Etheridge, jun., Cat. Aust. Fossils, 1878, p. 31 ; 
Tenison-Woods, Proc. Lin. Soc., N.S. Wales, 1883, Vol. VILL, pt. 
1, p. 186. See also Z. remoswm (Sternberg), ibid. 
Order.—CYCADEZ. 
Flowers unisexual, without any perianth. Male flowers 
forming catkins or cones, consisting of numerous spirally 
arranged imbricated scales (or stamens), more or less cuneate, 
bearing on the concealed portion of their under surface, 
numerous sessile or rarely stipitate anther-cells, each opening 
in two valves, the upper imbricated exposed part of the scales 
hardened, and often much thickened, the apex truncate or 
more or less produced into an incurved or recurved point or 
lanceolate appendix. Female cones consisting of numerous 
scales, imbricate at least when young, either with one pendulous 
ovule (or carpel) on each side of the thickened and hardened 
apex, or with three or more erect ovules (or carpels) in 
marginal notches below the flattened acuminate, and usually 
dentate or pinnatifid apex. Jruiting-cone enlarged, and either 
remaining imbricate with two pendulous seeds to each scale, or 
the scales with marginal seeds spreading as the central shoot is 
developed within the cone. Seeds naked (or nuts) with a 
thick or hard outer coating or integument, and a fleshy 
albumen in a central cavity of which the straight embryo is 
suspended by a long folded cord. Cotyledons two, undivided. 
Palm-like plants, with a thick globose, and underground or 
erect and cylindrical woody stem, simple or rarely slightly 
branched, marked with the scars or bases of the old leaves. 
Leaves forming a crown at the apex of the stem, once or twice 
pinnate. Cones sessile or very shortly pedunculate, within 
the crown of leaves. 
