Arrow-Lip Closed-Mouth Orchid is a small sized,
tree-dwelling orchid with a stem enveloped by leaf bearing sheaths and
carrying distichous, unequally bilobed apically, linear leaves. The
plant blooms in the spring through summer on a lateral, 14-20 cm long,
paniculate, hairless, laxly many flowered inflorescence with 3 distant,
tubular bracts and ovate pointed floral bracts. Flowers are purplish
red, small; flower-stalk and ovary about 5 mm. Dorsal sepal is oblong,
boat-shaped, about 3 x 1.5 mm, blunt; lateral sepals slightly obliquely
ovate, about 3 x 1.5 mm, blunt. Petals are sickle shaped-oblong, about
2.5 x 1.5 mm, blunt; lip lateral lobes erect, triangular, pointed;
mid-lobe arrow shaped-triangular, tip blunt, with 2 backward triangular
basal lobules on either side, with a longitudinal ridge; spur
horn-shaped, about 5 mm, tip blunt. Arrow-Lip Closed-Mouth Orchid is
found in Bhutan, NE India, S Yunnan, Thailand, at altitudes of 900-1600
m. Flowering: May-September.
Identification credit: Jambey Tsering
Photographed in Sessa, West Kameng, Arunachal Pradesh.
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The flower labeled Arrow-Lip Closed-Mouth Orchid is ...