Difference between revisions of "Abietinella"
Nuovo Giorn. Bot. Ital., n. s. 3: 115. 1896.
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|name=Thuidium sect. Abietina | |name=Thuidium sect. Abietina | ||
|authority=Schimper | |authority=Schimper | ||
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|name=Thuidium subg. Abietinella | |name=Thuidium subg. Abietinella | ||
|authority=(Müller Hal.) Brotherus | |authority=(Müller Hal.) Brotherus | ||
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|hierarchy=Thuidiaceae;Abietinella | |hierarchy=Thuidiaceae;Abietinella | ||
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|publication year=1896 | |publication year=1896 | ||
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|genus=Abietinella | |genus=Abietinella | ||
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Latest revision as of 21:36, 5 November 2020
Plants large. Stems erect-ascending, 1-pinnate; paraphyllia filamentous to narrowly foliose, simple or branched; axillary hairs 2-celled, cells brown. Stem leaves ovate; margins recurved at least proximally, crenulate-papillose; costa 3/4 leaf length; laminal cells rhombic to oblong-hexagonal, 1-papillose on both surfaces. Branch leaves ovate; margins plane, crenulate-papillose; apex acute to broadly acuminate; costa 3/4 leaf length, not covered with cells apically; laminal cells rounded-quadrate to short-rectangular, 1-papillose on both surfaces. Sexual condition dioicous; perichaetial leaves oblong-lanceolate, margins strongly serrate distally, costa subpercurrent, laminal cells porose. Seta smooth. Capsule inclined, cylindric, arcuate; annulus 2- or 3-seriate; operculum obliquely short-rostrate; endostome segments narrowly perforate, cilia 1 or 2.
Distribution
North America, Europe, Asia.
Discussion
Species 3 (1 in the flora).
Abietinella is a genus easy to recognize in the flora area; the plants are characterized by relatively robust, stiff, more or less erect, 1-pinnate, paraphylliate stems, often golden brown, growing most often on fairly dry, mostly calcareous sands.
Selected References
None.