【摘要】 白三叶草花蜜腺突起环状，位于花丝基部并延续至花托上，属于环状花托／雄蕊蜜腺，蜜腺由分泌表皮和产蜜组织组成．在花的发育过程中，蜜腺由本身的原始细胞分裂，分化而来．分泌表皮具角质层，其上分布有变态气孔器，蜜汁经产蜜组织合成后，经变态气孔器泌出．更多还原

【Abstract】 Anatomic studies and Cytological observations of the floral nectaries in Trifolium repens were studiedwith light and scanning electron microscopy. The nectary of Trifolium repens was located at the base of filaments,forming a zone whose base was continned to receptacle,belonging to an annular receptacular/staminalnectary. A nectary composed epidermis and nectariferous tissue and was derived from its own initials duringthe development of the flower. The cuticula and modified stomata are present in epidermal layer. It is concluded that the pre-nectar was sythesised in nectariferous and was exuded from the modified stonmata.更多还原