Typhaceae |
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Thulin, M. (1995) Typhaceae in Flora of Somalia 4: 94-95 Plants aquatic or wetland rhizomatous herbs with unbranched, erect stems. Leaves linear, in 2 rows, with long, open, sheathing bases. Inflorescences cylindric spikes (Typha) or globose heads (Sparganium), unisexual but male and female inflorescences present on the same stem, male inflorescences distal to the female. Male flowers: tepals absent (Typha) or 3-6, club-shaped, translucent or opaque linear, white or green when fresh (Sparganium); stamens 1-8; filaments united below or free; anthers with 2-thecae, basifixed, intorse, opening by longitudinal slits. Female flowers: perianths whorls of long hairs (Typha) or similar to the male flowers; ovaries superior, stipitate, 1-2(-3)-celled, each cell with 1 ovule; styles filiform, simple of with 2-3 branches; stigmas linear to ovate or subcapitate. Sterile femal flowers intermixed with and similar to fertile flowers present in Typha, differing in having club-shaped ovaries with reduced styles. Fruits 1-seeded follicles or drupes. The family Typhaceae now includes what used to a treated as Sparganiaceae. The enlarged family now includes 2 genera, Typha and Sparganium, and about 25 species. It grows primarily in north temperate regions but is also present in southeastern Australia, New Zealand, and some islands of woutheast Asia. Onel one genus, Typha, and one species, Typha domingensis, is present in Somaliland and . References Kaul, R.B. Sparganiaceae in Flora of North America, volume 22. Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 14.> Thulin, M. (1995) Typhaceae in M. Thulin (Ed.) Flora of Somalia 4: 94-95. Royal Botanic Gardens, Kew, Richmond, Surrey, U.K. |
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