Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 414
aining a double spkal fibrecoiled-up in its interior. This fibre is so elastic, that, whenthe surrounding pressure is withdrawn by the burstingof the sporangium, the spires extend themselves (Fig. 132),tearing-apart the ceU-membrane; and they do this suddenly,so as to jerk-forth the spores which… … 9 Areliegonia of Marchantia polymor-pJia, in successive stages of develop-ment. 392 MICROSCOPIC STRUCTURE OF HIGHER CRYPTOGAMIA, Fig. 132. which gradually assume the form of a flattened frond; andthus the species is very extensively multiplied, every one ofthe mass of spores, which is the product…
Microscopy
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