Distichia

Distichia Nees & Meyen, in Meyen, Observ. Bot. 128. 1843. Type species. Distichia muscoides Nees & Meyen Goudotia Decne., Ann. Sci. Nat. Bot., Ser.3. 4: 83. 1845; Distichia Nees & Meyen sect. Goudotia (Decne.) Bentham & Hooker, Gen. pl. 3: 367. 1883. Type species. Goudotia tolimensis Decne. (=Distichia muscoides Nees & Meyen). Agapatea Steud., Bot. Zeitung (Berlin) 14: 391. 1856, nom. nud.; Agapatea Steud. ex Buchenau, Abh. Naturwiss. Vereine Bremen 4: 124. 1874, nom. nud. References. Steudel, Syn. pl. glum. 2: 309. 1855; Buchenau, Abh. Naturwiss. Vereine Bremen 6: 369. 1879; Bentham & Hooker, Gen. pl. 3: 866. 1883; Buchenau in Engler & Prantl, Nat. Pflanzenfam. 2(5): 4. 1887; Buchenau, Bot. Jahrb. Syst. 12: 60. 1890; Buchenau in Engler, Pflanzenreich IV, 36 (Heft 25): 33. 1906; Hauman, Anales Mus. Nac. Hist. Nat. Buenos Aires 27: 300. 1915; Hauman & Vanderveken, Cat. phan. Argentine 1: 254. 1917; Castillon, Bol. Mus. Hist. Nat. 7: 6. 1926; Vierhapper in Engler & Prantl, Nat. Pflanzenfam. 2 ed. 15a: 221. 1930; Macbride, Field Mus. Nat. Hist., Bot. Ser. 13: 610. 1936; Barros, Darwiniana 10: 288. 1953; Balslev, Fl. Ecuador 11: 4. 1979; Balslev, Fl. Neotropica 68: 41. 1996; Kirschner et al., Juncaceae. Species Plantarum: Flora of the World 6: 1-237. 2002. Perennial, glabrous, cushion forming herbs. Stems more or less regularly forked and covered with persisting leaves. Leaves regularly, densely, and strictly distichously inserted along the stem, with a wide sheath clasping the leaf above; blade shorter than the sheath, terete. Inflorescence reduced to a single lateral, subapical flower; plants dioecious. Flowers supported by 2-4 minute membranous bracteoles. Tepals lanceolate. Staminate flower long pedicellate; stamens six, with linear mucronate anthers about 10 times as long as the filaments. Pistillate flower short pedicellate; ovary on a short gynophore; style with three filiform, sticky, papillose stigmas. Capsule unilocular, lifted on a gynophore at ripening. Seeds many. Etymology. The name Distichia refers to the distichous arrangement of the leaves. Composition and distribution. Distichia is a small genus with three species at high elevations in the Andes. D. muscoides is distributed from Colombia to northern Argentina, D. filamentosa is endemic to Bolivia, and D. acicularis is endemic to Ecuador.

Juncaceae
Distichia muscoides

Sin material de COL

Juncaceae