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柳兰花蜜腺杯状，贴生于凹形的花托内壁上，属花托蜜腺．它由分泌表皮，产蜜组织及亚腺组织构成．分泌表皮由一层细胞组成，具变态气孔，角质层薄，产蜜组织由１５～２０层细胞组成，无维管束，但在其外侧的亚腺组织中有维管束．柳兰花蜜腺发育早期无特定的原始细胞，是由花托内周表面细胞特化而成的．在蜜腺发育过程中，蜜腺细胞内的液泡、淀粉粒有明显的动态变化，其变化与蜜汁的形成、分泌密切相关．
Willow orchid nectar cup-shaped, stuck in the concave torus wall, is a flower nectar. It consists of the secretion of the epidermis, producing honey and sub-gland organization. Secretion of the epidermis by a layer of cells, with abnormal stomata, stratum corneum thin, honey tissue consists of 15 to 20 layers of cells, no vascular bundle, but in its lateral adenomatous vascular bundle. Willow nectar gland early development of specific primitive cells, the inner surface of the torus is made of cells. During the development of nectaries, the vacuoles and starch granules in the nectary cells obviously change dynamically. The changes are closely related to the formation and secretion of nectar.