Homalothecium aureum (Spruce) H.Rob.

Pinnatifid homalothecium moss (en)

Species

Bryophytes > Hookeriales > Brachytheciaceae > Homalothecium

Characteristics

Plants medium-sized, in loose or dense mats, yellow-green to golden brown. Stems to 10 cm, regularly pinnate, branches 4-6 mm, ± curved. Stem leaves erect to somewhat spreading, broadly ovate-triangular, 1.3-2(-2.4) × 0.5-0.9 mm; base slightly rounded, not decurrent; margins recurved, serrulate to subentire almost throughout; apex gradually tapered almost from base, acuminate; costa to 80-90 (-100)% leaf length, terminal spine sometimes present; alar cells subquadrate, 9-14 µm wide, , region of 15-20 × 10-15 cells, distinctly delimited, ; laminal cells elongate, 40-70 × 5-7 µm; basal cells variously quadrate, ovate, and elongate, region in 1-3(-5) rows, indistinctly delimited from more distal cells. Branch leaves appressed when dry, spreading when moist, oblong-lanceolate or occasionally ovate-lanceolate, 1.2-1.6 × 0.5-0.6 mm; margins plane or narrowly recurved almost throughout, entire proximally and serrulate distally or subentire almost throughout; apex acuminate; costa to 70-95% leaf length, terminal spine absent; alar cells quadrate to rectangular, 9-12µm wide, region conspicuous, extending (8-)10-15 cells along margins, moderately distinctly delimited; laminal cells elongate, 40-80 × 5-10 µm; basal cells in 1 or 2 rows; distal cells smooth. Sexual condition dioicous. Seta 0.7-1.5 cm, rough. Capsule erect, cylindric, sometimes slightly curved, 2-2.5 mm; annulus separating by fragments; operculum long-conic; peristome xerocastique; exostome teeth with long transitional zone; endostome basal membrane high, segments as long as teeth, very narrow, cilia very short, or rarely almost as long as segments. Spores 14-18 µm.
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Identifiers

LSID 35162601
WFO ID wfo-0001183230
COL ID 6MBT3
BDTFX ID -
INPN ID 5876
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Hypnum pinnatifidum Camptothecium amesiae Homalothecium aureum Camptothecium aureum