Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

SELAGINELLACEAE

SPIKE-MOSS FAMILY

Dieter H. Wilken

Plants on soil, rocks, or other plants, cespitose, mat-like (± flat), or cushion-like (rounded)
Stems pendent to erect, short to widely spreading, rooting at base or in branch fork; branches intricately intertwined or not
Leaves many, simple, overlapping, appressed, small, ± scale-like, 1-veined, smooth to grooved on back, sessile to decurrent, generally 4-ranked; fertile leaves at same node of prostrate stems equal or not, if unequal, leaves below stem generally appressed, leaves above stem ascending to spreading
Cones generally terminal; leaves like those on sterile stems or not, generally strongly overlapping, triangular in X -section
Sporangia 1 per leaf axil, spheric to reniform; lower generally with (1–3)4 large, 3-ridged, yellow to orange spores; upper generally with many, small, generally pale-colored spores.

SELAGINELLA

SPIKE-MOSS

The only genus
Species in genus: ± 700 species: worldwide, generally tropical and warm temp
Etymology: (Latin: small Selago , ancient name for some Lycopodium )
. Some cultivated as groundcover and curiosity (S. kraussiana, S. lepidophylla , resurrection plant). Hand lens required to observe leaf shape, margin, bristle at tip, cones
Horticultural information: TRY; DFCLT.

Native

S. cinerascens A.A. Eaton

ASHY SPIKE-MOSS

Plant ± mat-like
Stems prostrate to spreading, sometimes ± intertwined; main stems spreading, 5–18 cm; lateral branches < 2 cm, prostrate to ascending
Leaves generally sessile; upper and lower equal, 1–3 mm, linear to narrowly lanceolate, tip acute to abruptly pointed, not bristly, marginal hairs sparse, spreading
Cone < 5 mm; leaves widely ovate; large spores yellow
Ecology: Uncommon. Dry, open sites or under other plants
Elevation: < 300 m.
Bioregional distribution: s South Coast (San Diego Co.)
Distribution outside California: Baja California

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