| 单词 | internal phloem |
| 释义 | > as lemmasinternal phloem internal phloem n. Botany phloem that develops on the inner (adaxial) side of the vascular cambium in some vascular plants, in addition to the usual (external) phloem. ΘΚΠ the world > plants > part of plant > cell or aggregate tissue > [noun] > tissue > xylem or phloem liber1753 phloem1872 xylem1875 protophloem1884 protoxylem1887 internal phloem1891 metaxylem1894 hadrome1898 leptome1898 metaphloem1900 included phloem1910 1891 Bot. Gaz. 16 308 According to Lamounette..the internal phloem is not developed from the procambium which produces the bundle, but arises from the pith parenchyma. 1953 K. Esau Plant Anat. xii. 268 In angiosperms the internal phloem is initiated somewhat later than the external. 2009 Jrnl. Torrey Bot. Soc. 136 423/2 The present investigation gathers additional information on 1) origin and development of internal phloem and 2) structure and development of internal cambium. < as lemmas |
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