| 释义 |
‖ coleorhiza Bot.|ˌkɒliːəʊˈraɪzə|
[f. Gr. κολεός sheath + ῥίζα root.]
The sheath enveloping the radicle or rudimentary root in the embryo of grasses and other phanerogams; the root-sheath.
1866in Treas. Bot. 1880Gray Struct. Bot. ii. 26 The radicle is completely enclosed by..a peculiar sheath..named the Coleorhiza. 1882Vines Sachs' Bot. 638 In Ranunculus Ficaria, a tuberous lateral root is produced below the primary axis of the embryo, sheathed by a coleorhiza. |