Andaman Zeuxine is a terrestrial orchid, 30-50 cm
tall. It is named for the 20th century English botanist Robert Allen
Rolfe, who studied orchids. Stems are 5-8 cm long, 2-4 mm thick, erect,
unbranched, few membranous leaf-bases. Leaf-stalk 0.6-1.6 cm long,
sheathing at base; blade 1.6-6.3 x 0.9-2.7 cm, obliquely lanceshaped to
ovate-lanceshaped, blunt at base, somewhat pointed at tip, 3-veined.
Flowers are borne in a at branch-end raceme, densely many-flowered,
velvet-hairy, carried on flower-cluster-stalk up to 28 cm long. Flowers
are 0.7-1 cm long, erect, presented upside down. Sepals are free,
velvet-hairy; dorsal sepal 3.2-4.7 x 1.6-2 mm, ovate-elliptic to
almost- triangular, pointed at tip, adnate to petals to form a hood
around column; lateral sepals 3-5 x 1.5-1.8 mm, ovate-lanceshaped,
pointed at tip. Petals are 3-4.5 x 1.3-2 mm (at widest portion),
broadly triangular-sickle shaped, pointed at tip, hairless, 1-veined.
Lip is 4-5.5 mm long, longer than sepals and petals, smooth in living
state, wrinkled and rough in dry state. Ovary including flower-stalk is
5-8 x 2-3 mm, elliptic-oblong, twisted, velvet-hairy. Andaman Zeuxine
is endemic to Andaman & Nicobar. Flowering: March-April.