| 释义 |
dicotyledonous, a.|ˌdaɪkɒtɪˈliːdənəs|
[f. as prec. + -ous.]
Having two cotyledons; belonging to the class of Dicotyledons.
1794Martyn Rousseau's Bot. xiii. 131 The body of the seed does not split into two lobes, but continues entire. Such plants are called monocotyledonous, the others dicotyledonous. 1845Lindley Sch. Bot. (1858) i. 19 If the embryo has two cotyledons it is called dicotyledonous, as in the Bean. 1861Miss Pratt Flower. Pl. I. 13 Dicotyledonous plants have a distinct deposition of pith, cellular tissue, spiral vessels, wood, and bark. 1872H. Macmillan True Vine iii. 87 Its dicotyledonous seed expands in germinating into two lobes. 1872Oliver Elem. Bot. i. iv. 46 The Buttercup is dicotyledonous..the character expressed by this term (the possession of a pair of cotyledons, or, more strictly, the simple fact that the first leaves of the plant are opposite).
b. Of or belonging to a dicotyledonous plant.
1870Bentley Bot. 39 In the inner bark or liber of Dicotyledonous stems. 1876Page Adv. Text-bk. Geol. ix. 185 The reticulated venation of a dicotyledonous leaf. |