| 释义 |
‖ ocrea|ˈɒkriːə|
Erron. ochrea. pl. -æ.
[L. ocrea a greave or legging, worn by foot-soldiers, hunters, and country people.]
a. Bot. (a) A sheath or tube round a stem or stalk formed by the lateral cohesion of two or more stipules; (b) The thin sheath surrounding the seta in mosses.
b. Zool. An investing part or growth similar to this; the ‘boot’ of a bird (see ocreate a. 2).
1830Lindley Nat. Syst. Bot. 169 The cohesion of the scarious stipulæ into a sheath, technically called an ochrea, or boot, is sufficient to distinguish Polygoneæ from all other plants. 1835― Introd. Bot. (1848) I. 308 When stipules surround the stem of a plant they become an ochrea. 1863Berkeley Brit. Mosses Gloss. 312 Ocrea, a little sheath sometimes investing the base of the fruitstalk, distinct from the vaginula.
Hence ocreˈaceous a., Bot., of the nature or form of an ocrea.
1878Masters Henfrey's Bot. 329 The..plants of this order may be distinguished by the peculiar ocreaceous stipules. |