| 单词 | Selaginella |
| 例句 | He soon turned his attention to the embryology of Bryophytes and Pteridophytes, and gave continuous accounts of the germination of the spores and fertilization in Pilularia, Salvinia, Selaginella. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 5 "Hinduism" to "Home, Earls of" 2012-03-25T02:00:05.717Z Selaginella, sē-laj-i-nel′a, n. a genus of heterosporous cryptogams, allied to club-moss. Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) 2012-01-30T03:00:19.113Z To one of the lycopods, called Selaginella, reference will hereafter be made in connexion with its very instructive reproductive process. The Contemporary Review, Volume 36, September 1879 Selaginella lepidophylla.—This species of club moss is found in southern California, and has remarkable hygrometric qualities. Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture I, vertical section of the female prothallium of Selaginella, × 50. ar. archegonium. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses It was a huge shallow cup, composed mainly of moss, bound together with stems of creepers and fronds of a Selaginella, and lined with coarse roots and broken pieces of dry grass. The Nests and Eggs of Indian Birds, Volume 1 The only case of purely vegetative cell-formation which takes place by either of these processes is that of the formation of endosperm in Selaginella and phanerogams, which is a process of free-cell formation. Scientific American Supplement, No. 531, March 6, 1886 Nearest to the water the primeval garden began with ferns and creeping Selaginella. At Last In one of these club-mosses called Selaginella, the cases near the bottom of the cone contain large spores, while those near the top contain a powdery dust. The Fairy-Land of Science The spores are of two kinds, as in Selaginella, but the macrosporangia contain numerous macrospores. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Lastly, the very young fronds of a Fern and of a Selaginella circumnutated. The Power of Movement in Plants Secondly, the nucleus of the ovule corresponds with the macrosporangium of Selaginella, through the connecting link of the conifers, where the ovule is of similar origin and position to the macrosporangium of the Lycopodiaceæ. Scientific American Supplement, No. 531, March 6, 1886 Now this little Selaginella is of all living plants the one most like some of the gigantic trees of the coal-forests. The Fairy-Land of Science |
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