| 释义 |
endarch, a. Bot.|ˈɛndɑːk|
[f. Gr. ἔνδον endo- + ἀρχή beginning, origin.]
Having a primary xylem developing outwards and a central protoxylem.
1900B. D. Jackson Gloss. Bot. Terms. 1902Encycl. Brit. XXV. 413/1 When..there are several protoxylem strands situated at the internal limit of the xylem..the stele is endarch. 1910J. M. Lowson Textbk. Bot. (ed. 5) xiv. 361 The lower part of the stem has a single central protoxylem, i.e. it is endarch and monarch. 1957H. C. Bold Morphol. Plants xix. 370 Development of the xylem is endarch, for the first-formed annular and spiral protoxylem cells arise near the inner limit of each procambium strand. |