| 释义 |
exannulate, a. Bot.|ɛksˈænjʊlət|
[f. ex- priv. + annul-us + -ate2.]
Having no annulus or ring round the sporangium, as certain ferns; opposed to annulate.
1861Bentley Bot. 369 Those in which the ring is absent are said to be exannulate. 1880Gray Struct. Bot. x. §2. 361 Not dehiscent, exannulate. |