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SELAGINELLACEAE SPIKE-MOSS FAMILY

Paul Wilson & Thomas J. Rosatti


Stem: wiry, generally rooting adventitiously [or not], branching variable, generally not fragile when dry.
Leaf: many, simple, overlapped, appressed, small, ± scale-like, 1-veined, generally grooved abaxially [or not] nearly to tip, generally ± of 2 kinds ("under-leaves" under main stem, "over-leaves" over it).
Cone: paired or 1, terminal, generally 4-sided, fertile leaves not like sterile, generally strongly keeled.
Sporangia: 1 per leaf axil, 2 kinds, male (generally more distal in cones, spores many, small), female ( spores (1)4, large, generally orange-yellow).
1 genus. [Valdespino 1993 FNANM 2:38–63] —Scientific Editors: Alan R. Smith, Thomas J. Rosatti.

SELAGINELLA SPIKE-MOSS

± 700 species: worldwide, generally tropics, warm temperate. (Latin: small Selago, ancient name for some Lycopodium) Some cultivated as groundcover, curiosity: Selaginella kraussiana (Kunze) A. Braun; Selaginella lepidophylla (Hook. & Grev.) Spring, resurrection plant. Hand lens, generally at ± 20×, required for leaves (shape, margin, awn at tip), cones. Selaginella kraussiana may be naturalized in CA, differs from native CA taxa in leaves lacking abaxial groove.
Unabridged note: All native CA taxa in subgenus Tetragonostachys.

Key to Selaginella

S. eremophila Maxon DESERT SPIKE-MOSS
NATIVE
Plant a mat, loosely spreading at margins where branching sub- pinnate; green aging orange-brown.
Leaf: of main stem 0.4–0.6 mm wide, tip pointed up, acute; under- leaf of main stem 1.5–3 mm, ± lanceolate or sickle-shaped, decurrent, over- leaf 1.3–1.5 mm, lanceolate, not decurrent, base hairy or not; awn 0–0.03 mm.
Cone: sparse, 3–10 mm.
Shaded sites, sandy or gravelly soils, at base of rocks, in cracks; < 1100 m. e Peninsular Ranges, Sonoran Desert; to Arizona, n Mexico. [Online Interchange] {CNPS list}

Previous taxon: Selaginella cinerascens
Next taxon: Selaginella hansenii

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].

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Bioregions in which taxon occursRed area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon;
markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may have georeferencing or identification issues.
map of distribution 1

Chart based on elevation range in Manual and elevations and coordinates of CCH records.
Data provided by the participants of the Consortium of California Herbaria.
Note: About half of the CCH records include both elevation and coordinates.
Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

 

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes Manual flowering time.