Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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THELYPTERIDACEAE

THELYPTERIS FAMILY

Alan R. Smith and Thomas Lemieux

Plants in soil; rhizome short- to long-creeping, scales generally hairy, uniformly brownish
Leaf: petiole in transverse section at base with 2 crescent-shaped vascular strands; blade generally with needle-like, clear hairs on axes or between veins; 1° and 2° axes generally grooved on upper surface, grooves not continuous from one axis to next; veins free or lowest pair running together at or near deepest part of sinus
Sporangia in generally round sori on veins; indusia reniform or round-reniform; stalk cells in 3 rows; spores elliptic, scar linear
Genera in family: 1–30 genera (depending on interpretation), ± 900 species: worldwide, especially tropical; several cultivated.

THELYPTERIS


Leaf: blade 1–2-pinnate; 1° leaflets pinnately lobed
Reference: [Smith 1971 Univ Calif Publ Bot 59:1–143]

Native

T. nevadensis (Baker) C.V. Morton

Rhizome creeping, 1.5–3 mm wide
Leaves 0 for several cm, then densely clustered, generally 40–100 cm, 8–15 cm wide; petiole scales ovate, tan, persistent; blade thin, lower surface with many short-stalked or sessile, resinous glands between and on veins, with non-glandular hairs sparse on axes and veins, 0 between veins
Sporangia: indusia glabrous or sparsely hairy
Ecology: Springy hillsides, seepage areas
Elevation: 800–1700 m.
Bioregional distribution: Klamath Ranges, Outer North Coast Ranges, n High Sierra Nevada
Distribution outside California: to British Columbia
Synonyms: Lastrea oregana (C. Chr.) Copel
Locally forming large colonies
Horticultural information: IRR or WET, DRN: 4, 5, 6, 17 &SHD: 3, 7, 14, 15, 16; GRCVR(deciduous).

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