376 



THE JOURNAL OF BOTANY 



capense the ovules are naJa'd, and that the fleshy coat is derived 

 from a large development of endosperm, on the outside of which the 

 remains of the nuceUus forms a thin membrane. Moreover, no 

 vascular tissue occurs in the fleshy coat. 



A. Braun {Ann. Sci. Xat. ser. 4, xiv. p. 9 (I860)) shortly after- 

 wards confirmed Prillieux's observations on the occurrence of two 

 kinds of fleshy seeds, which he named bulbous, where the outer of 

 the two integuments of the ovule forms the fleshy seed-coat (as in 

 Hymenocallis), and tuberculous (as in Crinum, &c.) respectively. He 

 also drew attention to the fact, noted by Brown, that in some of the 

 fleshy seeds (those in which their separation precedes the visible 

 formation of the embryo) spiral vessels do occur in the fleshy mass, 

 though Brown had previously stated in the Prodromus (p. 297) that 

 the mass was purely cellular. The recognition of the existence of 

 the two kinds of seeds helped to explain these differences. Brami 

 also noted that several embryos might occur in one seed in Hymeno- 

 callis. 



Fig. v. — Calostemma Ciinningliami Ait. 1. Two anatropous ovules — 

 m, micropyle ; rt, an aril-like outgrowth which ultimately forms a cap on top of 

 the bulb. 2. Longitudinal section of one of the ovules shown in 1, showing the 

 inner, i, and outer, i', integuments surrounding the nucellus, n, in v,hich is seen 

 the embryo-sac, .><■ ; m, micropyle; /;, hilum, or point of insertion of the ovule. 



3. Longitudinal section of an ovule at a later stage — the base (chalaza) has 

 become flattened, forming a disc, from the lower part of which a root, r, is 

 growing, from the upper a bud, b, which is filling the cavity of the embryo-sac. 



4. Mature bulbil in longitudinal section. The bud has completely filled the 

 cavity of the nucellus, the remains of which, together with the integuments of 

 the ovule, form the bulb -scales. 



After Baillon, in Compt.-Rend. de la 2me Session, Assoc. Franc. 1874, t. iii. 



A third kind of bulbiform seed was subsequently described by 

 Baillon in an allied genus, Calostemma, in the Proceedings of the 

 Association Fran9aise (Lyons, 1873). Calostemma was one of the 

 Australian genera to which Brown referred in his original note in 

 the Prodromus. In C. Cunningliami each of the three ovary -chambers 



