THE BULBIFORM SEEDS OF CERTAIN AMARYLLIDE^ 



375 



HymenocalHs speciosa the two integuments of the ovule after fertili- 

 zation become much thickened, and fuse together with the nucellns 

 to form the thick fleshy mass surrounding the embryo. Vascular 



Fig. iv.— Criiium capense Herb. 1. Seed cut longitudinally, showing 

 contained embryo — r, radicle ; c, cotyledon. 2. Germinating seed — /•, radicle ; 

 c, cotyledon ; b, first leaf of plumule. 3. A dry seed germinating on the edge 

 of a board : the cotyledon has grown to a great length, the first leaf of the 

 plumule has not yet broken from the cotyledonary sheath. 4. Longitudinal 

 section of the cotyledonary sheath showing also the long, narrow first leaves of 

 the plumule. The sheath which ultimately forms the outermost bulb-scale is 

 already thickening. 5. Sucker-like end of cotyledon which remains in the seed. 



After H. C. van Hall, in Tijdschr. v. Natuurl. Geschied. vii. t. iii. Leiden, 

 1840. 



tissue derived from the outer integument can be seen. In the next 

 year PrilUeux {Ann. Sci. Nat. ser.*4, ix. 97 (1858) ) confirmed Baillon's 

 statements on Hijmenocallis (except that he states that the fleshy 

 coat arises purely from the primine), but showed that in Amanjllis 

 Belladonna, Crinum embescens, C. giganteiim, C. taitense, and C. 



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