DIMENSIONS OF SEEDS. 451 



enormously from plant to plant. The s 1 of the terrestrial Orchid Gymnadenia 



Fig. 341. — Mangrove Tree (Rhizoph<ira Mungle). 



' Branch with flowers and fruit» (reduced). ' Single fruit, the apex of which is being penetrated by the radicle of the embryo. 



(After Baillon.) 



Ciuijisrn measures 1 nun. in Length and weighs "008 "ram: that of the ( \icoa-nut 

 Palm 11-14 cm. and weighs 800-1100 grams. The Wind Bent-grass (Apera spica- 



