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- the zosterophyllophytes or basal members of the Lycophytina are characterized by the exarch xylem; 不同于工蕨类或石松植物基部类群的外始式木质部;
- exarch xylem 外始式木质部
- A cell in the xylem of vascular plants. 管胞在维管植物的木质部中的细胞
- Lignified tissues include SCLERENCHYMA and XYLEM. 木质素组织包括厚壁组织和木质部。
- The xylem of ferns only contains tracheids. 蕨类植物的木质部只含有管胞。
- It has a well developed root cap with no root hairs developed from its epidermal cells. Stelar structure is tetrarch with pri- mary xylem elements in exarch development. Xylem and phloem strands are arranged in alternate. 漂浮根发生于茎节的中柱鞘细胞,它有发育良好的根冠,表皮细胞不分化为根毛,中柱初生木质部为四原型,发育方式为外始式,维管束中的木质和韧皮两部分相间排列,整个器官属内起源,可以说明这一漂浮器官是根而非叶。
- Withdraw - The Exarch and his squad have the Hit&Run USR. 突发攻击-不论战役是否允许,皆可使用深入攻击规则。
- The first formed xylem that differentiates from the procambium. 原生木质部最先形成的木质部,与原形成层不同
- Tank Hunters - The Exarch and his squad have the Tank Hunters USR. 坦克杀手-视为具有坦克杀手技能。
- The xylem of ferns and conifers contains only tracheids. 蕨类植物和针叶树的木质部仅含有管胞。
- Shining Spear Exarch has a Star Lance giving a S8 power weapon on the charge. 音爆长矛军官可使用星光长枪,在冲击时做为S8的动力武器。
- Primary xylem Xylem derived from the procambium in the young plant. 初生木质部:指幼嫩植物中来源于原形成层的木质部。
- Large proportion of xylem benefit to the water transfer. 叶脉中木质部比重越大,越有利于水分的传输。
- Skilled Riders - The Exarch and his squad have the skilled Riders USR. 出色骑士-可使用出色骑士规则。
- Observation and Study of Vessel Elements of Secondary Xylem in. 次生木质部导管分子观察研究。
- Sapwood contains xylem vessels, but not as strong as heartwood. 边材含有木质导管,但不如中心木质那样坚硬。
- The vascular cambium is located between the xylem and the phloem. 维管形成层位于木韧之间。
- The development of xylem is of mesarch.Stomata are monocyclic type. 叶脉、叶柄、上胚轴的维管束均为外韧型。
- The bine is comprised by cerebral cortex, xylem and fungous marrow. 茎由皮层.;木质部和海绵状的髓组成。