Triuridaceae, A New Familial Record of Angiosperm from Myanmar

Sciaphila nana, a species representing a new familial record of flora of Myanmar, is described and illustrated.

The monocot family Triuridaceae consists of approximate 11 genera and ca. 50 species and is widespread in tropical and subtropical region around the world. Triuridaceae is characterized by achlorophyllous plants, leaves alternate, reduced and scalelike, small flowers actinomorphic, sometimes appendaged at apex, stamens 2-6 inserted at base of receptacle or perianth, carpels 6 to many, ovule solitary, fruiting carpels crowded, opening by a slit。

During our botanic survey in northern Myanmar,  Sciaphila nana, a species representing a new familial record of flora of Myanmar, is described and illustrated. Sciaphila nana is characterized by having monoecious plants, flowers with six tepals, inner tepals of male flowers having knob tip, three stamens, and stamen 4-celled.

Sciaphila nana is closely related to S. khasiana Benth. & Hook. f. from Bangladesh by sharing small status plants, racemose inflorescence and four-celled anthers, but differs from the latter by its flowers with 6 tepals (4-5 tepals in S. khasiana), monoecious plants (dioecious in S. khasiana), and male flowers usually without subulate pistillodes (3 in male flowers of S. khasiana)。

The result published as " Triuridaceae, A New Familial Record of Angiosperm from Myanmar" on Journal of Tropical and Subtropical Botany.

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 Plants of Sciaphila nana Blume. A: Habit of Sciaphila nana in Putao, Kachin, Myanmar; B: Close up of female flowers (live plants); C: Close up of male flower (dry specimens)