【摘要】 本文对沙芥属 (Pugionium)的 2个种——翅果沙芥 (P.pterocarpum Kom.)、距沙芥 (P.calcaratumKom .) [7] 根、花序轴、叶做了解剖学观察。结果表明这 2种植物属于肉质多浆类植物 ,体内薄壁组织发达 ,适于作为食用植物予以开发。它们的花序轴表皮具发达的角质层、“异形细胞”、气孔 ,皮层薄壁细胞中含有大量的叶绿体 ,维管束为双韧维管束。另外翅果沙芥和距沙芥具有二元型的初生根 ,老根肉质化。它们的营养器官有分泌细胞等十字花科植物的特征。另外 ,本文讨论了沙芥属 4个种在解剖结构的异、同点更多还原

【Abstract】 The anatomical observations on the leave. rachis and roots of P. pterocarpum Kom. and P.calcratum Kom. have been taken. The results showed that their vegetative organs possess a lot of parenchyma and less mechanical tissue. They belong to succulent xerophytse. The periderm of their rachis developed cuticle, and the vascular bundles in them are bicollateral. In addition,the two species both have diarch premery xylem,fleshy roofs and secrete cells that. Cruciferae plants often have.更多还原