logo Calflora, a 501c3 non-profit
Taxon  Report  
Ptychostomum creberrimum  (Taylor) J.R. Spence & H.P. Ramsay
Ptychostomum creberrimum 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 creberrimum from other sources
Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

[beta.floranorthamerica.org] Description, Phenology, Habitat, Elevation: Plants in dense or open turfs, green or yellow-green. Stems 1 - 2 (-3) cm, comose, innovations comose or somewhat elongate and evenly foliate; often strongly radiculose. Leaves green, twisted to contorted when dry, ovate-lanceolate, flat to weakly concave, (1-) 2 - 3 (-3.5) mm, somewhat enlarged toward stem apex; base weakly decurrent; margins revolute to mid leaf or beyond, limbidium strong, in 2 or 3 rows, yellowish; apex acuminate; costa long-excurrent, awn ± smooth; proximal laminal cells 3 - 4:1, same width or sometimes wider than more distal cells; medial and distal cells rhomboidal, 14 - 22 µm wide, 3 - 4:1, walls usually thin to firm, never oblique to costa. Specialized asexual reproduction absent. Sexual condition synoicous. Seta 1 - 2 (-3) cm. Capsule brown, elongate-pyriform, symmetric, 2 - 4 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 broadly ovate perforations, cilia long, appendiculate. Spores 10 - 14 (-16) µm, finely papillose, pale brown-yellow or green. Phenology: Capsules mature May -Sep. Habitat: Damp to dry soil, soil over rock Elevation: low to high elevations (0 - 3500 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).