Abietinella

Müller Hal.

Nuovo Giorn. Bot. Ital., n. s. 3: 115. 1896.

Etymology: Latin abietis, of conifer genus Abies, and - ella, diminutive, alluding to habit aspect
Synonyms: Thuidium sect. Abietina Schimper Thuidium subg. Abietinella (Müller Hal.) Brotherus
Treatment appears in FNA Volume 28. Treatment on page 374. Mentioned on page 373, 375, 380, 648.
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 TaxonIllustrator 
ThuiAbietinellaAbietina.jpegAbietinella abietinaPatricia M. Eckel

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 roundedquadrate 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-seriate 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.

... more about "Abietinella"
3-seriate +  and 2-seriate +
differentiated +
acute +  and broadly acuminate +
William R. Buck +
Müller Hal. +
roughened +  and smooth +
cucullate +
cylindric +
papillose +
differentiated +
2 (?) +  and 1 (?) +
nodulose +
subpercurrent +
North America +, Europe +  and Asia +
Latin abietis, of conifer genus Abies, and - ella, diminutive, alluding to habit aspect +
shouldered +  and bordered +
dioicous +  and sexual +
crenulate-papillose +
short-rostrate +
branched +, simple +  and foliose +
oblong-lanceolate +
Nuovo Giorn. Bot. Ital., n. s. +
smooth;roughened +
elongate +
spheric +
not stipitate +
erect-ascending +
differentiated +
Thuidium sect. Abietina +  and Thuidium subg. Abietinella +
Abietinella +
Thuidiaceae +
specialized +
dioicous +, autoicous +, sexual +  and asexual +
dark green;golden brown +