喉红石斛  转到中国兰科植物志

Dendrobium christyanum  分类来源:中国植物志

喉红石斛 Dendrobium christyanum Rchb. F 

Epiphytic at forest margins; 800-1200 m. Yunnan [Thailand, Vietnam].

IMG_8615.JPG

Stems erect, subclavate to fusiform, 2-4[-8] cm, 6-9 mm in diam., unbranched, with few nodes.

IMG_8616.JPG

 Leaves 2 or 3, subterminal, long-lasting, ovate-lanceolate or oblong, 3-4(-4.5) × ca. 1 cm, abaxial surface and sheath with black hairs, apex obtuse and unequally 2-lobed.

IMG_8617.JPG

 Inflorescences subterminal, 1- or 2-flowered. Flowers spreading, white, lip with orange center. Dorsal sepal ovate to ovate-lanceolate, ca. 20 × 8-10 mm, acute; lateral sepals similar to dorsal sepal; mentum broadly conic, ca. 10 mm. Petals elliptic-oblong, ca. 20 mm, subacute; lip ca. 25 mm, margin undulate, apex 3-lobed; mid-lobe emarginate at apex; disk with 3 granulose lamellae.


Flowering July, often in summer and early autumn, flowering long.

IMG_8621.JPG

IMG_8618.JPG

IMG_8633.JPG

IMG_8635.JPG

IMG_8637.JPG

IMG_8638.JPG

IMG_8639.JPG

 



特别鸣谢: