Herminium biporosum Maxim. – a new report for India from Arunachal Pradesh.
Terrestrial or lithophytic. Plants 7.5-20 cm. Tubers subglobose to subconic, 0.7-1, 1-1.2 cm in diameter, hairy. Stem cylindric, 1.5-2 cm, slender, sheathed. Leaf oblong-lanceolate, 2-4.5 X 0.7-1.2 cm, petiole-like base and tubular sheath, apex subacute. Inflorescence 5-15 cm, slender; subdensely flowered. Sepals unequal, apex subacute; dorsal broadly ovate, 0.2-0.3 X 0.1-0.2 cm; lateral lanceolate, 0.2-0.4 X 0.2-0.3 cm, oblique, slightly falcate. Petals ovate, as long as dorsal sepal, apex obtuse. Lip oblong to lanceolate, longer than sepals, base dilated and with 2 pits, apex acute. Floral bracts ovate, short.
11800-12870 ft; June/July; Extremely rare.