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2. Tetrodontium brownianum (Dickson) Schwägrichen, Sp. Musc. Frond. Suppl. 2(1,2): 102. 1824.
Georgia browniana (Dickson) Müller Hal.; Tetraphis browniana (Dickson) Greville
Plants without flagelliform shoots. Thallose protonematal flaps narrowly linear-lanceolate acute, occasionally with a short mucro-nate 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.
Varieties 2 (2 in the flora): North America, Eurasia.
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Protonematal flaps narrow, linear, acute, to 2.5 mm, usually entire, sometimes with a short mucronate point; stem leaves acuminate, sharply pointed |
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2a Tetrodontium brownianum var. brownianum |
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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 |
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2b Tetrodontium brownianum var. ovatum |
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Lower Taxa
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