Difference between revisions of "Tetrodontium brownianum"
Sp. Musc. Frond. Suppl. 2(1,2): 102. 1824,.
Synonyms: Georgia browniana (Dickson) Müller Hal. Tetraphis browniana (Dickson) Greville
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|name=Georgia browniana | |name=Georgia browniana | ||
|authority=(Dickson) Müller Hal. | |authority=(Dickson) Müller Hal. | ||
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|name=Tetraphis browniana | |name=Tetraphis browniana | ||
|authority=(Dickson) Greville | |authority=(Dickson) Greville | ||
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}} | }} | ||
|hierarchy=Tetraphidaceae;Tetrodontium;Tetrodontium brownianum | |hierarchy=Tetraphidaceae;Tetrodontium;Tetrodontium brownianum | ||
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name=Tetrodontium brownianum | name=Tetrodontium brownianum | ||
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|authority=(Dickson) Schwägrichen | |authority=(Dickson) Schwägrichen | ||
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|genus=Tetrodontium | |genus=Tetrodontium | ||
|species=Tetrodontium brownianum | |species=Tetrodontium brownianum | ||
Latest revision as of 22:24, 5 November 2020
Plants without flagelliform shoots. Thallose protonematal flaps narrowly linear-lanceolate acute, occasionally with a short mucronate point, margins usually entire, up to 2.5 mm. Leaves with costa weak or sometimes absent, present only in distal leaves. Spores about 10–12 µm.
Distribution
North America, Eurasia.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Protonematal flaps narrow, linear, acute, to 2.5 mm, usually entire, sometimes with a short mucronate point; stem leaves acuminate, sharply pointed | Tetrodontium brownianum var. brownianum |
| 1 | Protonematal flaps ovate-lingulate, less than 0.5 mm, dentate, with a large acute apical cell, often mixed in with linear, mucronate flaps; stem leaves obtuse | Tetrodontium brownianum var. ovatum |