| 单词 | Cordaites |
| 例句 | One argument that has been adduced in support of the axillary bud theory is derived from the Palaeozoic type Cordaites, in which each ovule occurs on an axis borne in the axil of a bract. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" 2011-12-26T03:00:11.613Z Another curious, and till recently little understood, group of Carboniferous trees is that known as Cordaites, which existed already in some of its species in the Devonian. The Chain of Life in Geological Time A Sketch of the Origin and Succession of Animals and Plants 2011-06-01T02:00:24.880Z Of great interest are the genera Cordaites, Araucarioxylon, &c., which were synthetic types, uniting in some degree the Coniferae and the Cycadofilicales. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 "Destructors" to "Diameter" Further, the Sigillariae grew on the same soils which supported Conifers, Lepidodendra, Cordaites, and Ferns—plants which could not have grown in water. Critiques and Addresses Further, it is now believed that a large part of what were believed to be Conifers, suddenly entering from the unknown, are not Conifers at all, but Cordaites. The Story of Evolution Botanists look for their ancestors in some form related to the Cordaites of the Coal-forest. The Story of Evolution The Cordaites is a very remarkable combination of features that are otherwise scattered among the Cryptogams, Cycads, and Conifers. The Story of Evolution The ginkgo trees seem to be even more closely related to the Cordaites, and evolved from an early and generalised branch of that group. The Story of Evolution |
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