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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, ± 700 species: worldwide, generally tropics, warm temperate. [Valdespino 1993 FNANM 2:38–63] —Scientific Editors: Alan R. Smith, Thomas J. Rosatti.

SELAGINELLA SPIKE-MOSS
(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 California, differs from native California taxa in leaves lacking abaxial groove.
Unabridged note: All native California taxa in subgenus Tetragonostachys.

Key to Selaginella

S. hansenii Hieron.
NATIVE
Plant a sprawling mat, loosely spreading at margins where branching ± pinnate; green aging tan then gray, some leaves red, pink-red, or red-streaked. Leaf: 1–4.5 mm, 0.4–0.7 mm wide, not decurrent; under-leaves lance-linear, grading to linear-deltate over-leaves; base glabrous; awn 0.4–1.4 mm, in tufts at stem tips. Cone: Sparse, 4–8 mm.
Rocks of outcrops, river gorges, foothill woodland; 250–1700 m. s Inner North Coast Ranges, Cascade Range, Sierra Nevada, Sacramento Valley (Sutter Buttes), n South Coast Ranges. [Online Interchange]

Previous taxon: Selaginella eremophila
Next taxon: Selaginella leucobryoides

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Apr 16 2014
Citation for this treatment: [Author of taxon treatment] 2012. Selaginella, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=44057, accessed on Apr 16 2014

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Bioregions in which Selaginella hansenii occurs 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 provide evidence for eFlora range revision or may have georeferencing or identification issues.
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CCH collections by month

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