Plants and their uses; an introduction to botany . duces all the

Download this stock image: . Plants and their uses; an introduction to botany . duces all the rest of theplant, the pseudo-leaves {b-h) which project from the lower surfaceof the thallus and hold water for it, and archegonia, very young (a)and full grown (a), ready for fertilization. (Waldner, Kny.) Both generations are still more highh developed in the umbrella-liverwort (^larchantia, Figs. 340-342), a common species growing onthe earth in moist localities. The spores germinate much as inRiccia, but the thalli are alwajs bisexual. At first, however, bothforms are essentially alike and resemble a brood-lolled Riccia. Fr - 2CE2R36 from Alamy's library of millions of high resolution stock photos, illustrations and vectors.

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Plants and Their Uses; An Introduction to Botany

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. Plants and their uses; an introduction to botany . Fig. 341, V.—Umbrella-liverwort. Archegonium (at the left) containingan egg-cell (e): and (at the right) the same, later, containing a youngsporophyte (sp). ^(^ The neck (n) of the

Plants and their uses; an introduction to botany . Fig. 342.—Umbrella-liverwort. Thallus (i) showing on the top sevenbrood-cups containing minute brood-bodies; and below numerouspseudo-roots. (Atkinson.) 522 LIFE-HISTORIES whether it ho ;i

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Darwin, Francis & Seward, A. C. eds. 1903. More letters of Charles Darwin. A record of his work in a series of hitherto unpublished letters. London: John Murray. Volume 1.

Plants and their uses; an introduction to botany . duces all the rest of theplant, the pseudo-leaves {b-h) which project from the lower surfaceof the thallus and hold water for it