原生中柱 meaning in English
centrarch
protostele
Examples
- The stems of some lower plants ( e . g
大多数根具有特化的原生中柱。 - Haplostele a type of protostele having a solid strand of stele with the xylem on the inside encircled by phloem , pericycle , and endodermis
单中柱：原生中柱的一种类型，是由韧皮部、中柱鞘和内皮层包围着内方的木质部构成的实心中柱。