DLAURACEZ. 443 
whose leaves remain rudimentary, while two develop into long, 
erect, flattened, membranous or subligneous wings, tapering slowly 
but considerably to the base. The endocarp contains one seed, 
whose exalbuminous embryo has a superior conical radicle, and two 
petiolate foliaceous cotyledons, spirally rolled around the central 
part of the embryo. Gyrocarpus consists of trees or shrubs (some- 
times climbing) in nearly all countries. Their leaves are alternate 
exstipulate, with a palmiveined blade, simple, lobed, or trifolio- 
late. The flowers form much-ramified racemes of cymes axillary 
to the leaves or terminating the branches. Five or six species’ 
are now admitted, which might perhaps be reduced to a 
couple. 
Sparattanthelium? comes very near Gyrocarpus, from which it is dis- 
tinguished by its perianth of four or six caducous leaves, its four 
or six valvate stamens without basilar glands, and its wingless fruit. 
The five or six known species’ of this genus inhabit tropical America. 
VII. ILLIGERA SERIES. 
Illigera’ (figs. 270-272) has regular hermaphrodite flowers. The 
receptacle forms a deep sac containing the ovary ; above this it tapers 
into a narrow neck traversed by the style, above which it again ex- 
pands into a sort of cup, the edges of which bear the perianth and 
androceum. The former consists of two whorls of leaves, each 
usually pentamerous; or sometimes tetramerous, and valvate in the 
bud. ‘The leaves of the two whorls alternate, and resemble each 
other in thickness and consistency.’ The androceum consists of five 
free stamens, superposed to the outer perianth-leaves, possessing a 
free filament and an introrse two-celled anther. The front wall of 
each cell separates all round except along its upper edge, on which 
1W., Spec., iv. 982.—R. Br., Prodr., 404.— 
“ Roxz., Pl. Coromand., i. 2, t. i—H. B. K., 
Nov. Gen. et Spec., vii. 493.—Prrs., Syn., 
i. 145.—Miq., Fl. Ind.-Bat., i, 977.—Tuw., 
Enum, Pl. Zeyl., 258.—Muissy., in Mart. Fl, 
Bras., Laurac., 290. 
2 Mart., Herb. Fl. Bras., 280; in Regensb. 
Bot, Zeit. (1841); Beibl. Densk. d. Bot. Ges. 
ia Regensb., iii. 298, t. 10, 11.—ENDL., Gen., 
Suppl, ii. 35, n. 2068,—Mutssn., Prodr., 249, 
3 Mezrssn., in Mart. Fl. Bras., Laurac., 291, 
t. 106. 
4 Bu, Bijdr., 1153; Nov. Fam. Expos., 14; 
in Ann. Se. Nat., sér. 2, ii. 96.—Nuzs, Syst, 
703.—ENDL., Gen., n. 2069.—MeEissy., Prodr., 
250.— B. H., Gen., 689, n. 18.— H. Bn., in 
Adansonia, v. 186.—Gronovia Buanc., Fl. de 
Filippin., 186 (nec L.).— Henschelia PRrst., 
Rel. Henk., ii. 81, t. 63.—ENpDL., Gen., ». 4705. 
—Coryzadenia GRiF¥., Posth. Pap., iv. 356. 
5 Some botanists consider the periauth a 
double calyx, others a calyx and corolla. The 
Jaiter view seems most probable, if we look at 
the case of the true Lawracee. 
