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Taxon  Report  
Ptychostomum pseudotriquetrum  (Hedw.) J.R. Spence & H.P. Ramsay ex Holyoak & N. Pedersen
Ptychostomum pseudotriquetrum is a moss that is native to California.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
Genus: Ptychostomum
Family: Bryaceae  
Category: bryophyte  
PLANTS group:Moss

Information about  Ptychostomum pseudotriquetrum from other sources
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[beta.floranorthamerica.org] Description, Phenology, Habitat, Elevation: Plants in dense turfs, green, red-green, or yellow - green, older shoots becoming red-brown. Stems 2 - 4 (-6) cm, tufted, weakly comose to evenly foliate, innovations elongate and evenly foliate; usually strongly radiculose well toward stem apices. Leaves green, red-green, or yellow-green, dull brown-red or brick red with age, somewhat twisted to contorted when dry, ovate, flat to weakly concave, (1-) 2 - 3 (-4) mm, not much enlarged toward stem apex; base strongly and narrowly decurrent; margins revolute to mid leaf or beyond, limbidium strong, in 2 or 3 rows; apex acute; costa short-excurrent, awn smooth; proximal laminal cells short-rectangular, 3:1, same width or somewhat wider than more distal cells; medial and distal cells rhomboidal, 14 - 22 µm wide, (2-) 3:1, walls firm to often incrassate. Specialized asexual reproduction occasional, by leaf axil gemmae, brown. Sexual condition dioicous. Seta 1- -3 (-4) cm. Capsule brown, elongate-ovate, symmetric, 3 - 5 mm, mouth yellow; operculum conic, apiculate; peristome well developed; exostome teeth yellow basally, hyaline distally, lamellae usually straight mid tooth, pores absent along mid line; endostome not adherent to exostome, basal membrane high, 1/2 exostome height, segments with ovate perforations, cilia long, appendiculate. Spores 12 - 18 µm, finely papillose, pale yellow or green. Phenology: Capsules mature Apr - Oct. Habitat: Wet soil, soil over rock, rock, fens Elevation: low to high elevations (0 - 4000 m) (link added by Mary Ann Machi)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/22/2024).