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BFNA | Family List | BFNA Vol. 3 | Gymnomitriaceae

Prasanthus Lindberg in Kgl. Sv. Vetensk. Akad. Handl. 23 (5): 62. 1989.

Greek prason, onion, plus anthos, flower

Won Shic Hong

Plants ca. 0.5 mm wide, forming dense prostrate mats. Stem a subterranean rhizome, ca. 5--10 mm, with numerous rhizoids. Leaves transversely inserted, scalelike, elliptical; cell walls thick and colorless; lobes shallowly 2-lobed 0.1--0.2 of their length, broadly triangular, entire or shallowly emarginate at the apex; oil bodies usually absent. Underleaves minute, 0.1--0.2 size of leaves, ovate-elliptical, unlobed to 2-lobed. Sexual condition paroicious. Specialized asexual reproduction absent. Antheridia axillary, male bracts similar to leaves, 1--3-androus, antheridial stalk 2-seriate. Gynoecia terminal on main stem, bulbous, bracts in several pairs, bearing slime papillae. Perianth absent. Perigynium fleshy, cup-like, densely rhizoidous. Capsule ovoid, wall 2-stratose. Elaters 6--8  m wide. Spores 12--14  m.

Species 1 (1 in the flora): European Alps and High Arctic regions of the Northern Hemisphere.


Hedderson, T. A., L. Söderström and G. R. Brassard. 2001. Hepaticae of the Torngat Mountains, northern Labrador, Canada. Lindbergia 26: 143--156. Schuster, R. M. 1974. Prasanthus Lindb. & Arn. In: R. M. Schuster, 1966--1993. Hepaticae and Anthocerotae of North America, New York. Vol. 3. pp. 157--166. Schuster, R. M. and N. Konstantinova. 1996. Studies on the distribution of critical arctic/subarctic Hepaticae with special reference to taxa found in Russia. Lindbergia 21: 26--48.

Lower Taxon

Related Synonym(s):


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