Difference between revisions of "Cryptogramma stelleri"
in Engler,Bot. Jahrb. Syst. 3: 413. 1882.
Common names: Slender rock-brake or cliff-brake Steller's rock-brake fragile rock-brake cryptogramme de steller
Basionym: Pteris stelleri S. G. Gmelin
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>creeping, few branched, slender, 1–1.5 mm diam., succulent, brittle; scales colorless, sparse, transparent-reticulate, ovate, 0.4 × 0.3 mm; stems shriveling in 2d year following emergence of leaves. <b>Leaves</b> scattered along stems, ephemeral (dying by late summer), soon shed; sterile leaves erect, 3–15 cm; fertile leaves erect, 5–20 cm; petioles, costae, and costules glabrous. <b>Petiole</b> dark brown in proximal 1/2 or less, becoming greenish distally, ca. 1 mm wide when dry, only slightly furrowed, glabrous. <b>Blade</b> broadly lanceolate to ovate-lanceolate, all pinnate-pinnatifid to 2-pinnate, herbaceous to membranous, thin; hydathodes superficial, often poorly developed or absent. <b>Segments</b> of sterile leaves ovate-lanceolate to fan-shaped, distal 1/2–1/3 shallowly lobed; segments of fertile leaves horizontal to ascending, often only partially differentiated from sterile leaves, lanceolate to linear, 8–25 × 2–4 mm; margins reflexed, forming continuous false indusia. <b>Sporangia</b> often in discrete sori. <b>2n</b> = 60.</span><!-- |
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|genus=Cryptogramma | |genus=Cryptogramma | ||
|species=Cryptogramma stelleri | |species=Cryptogramma stelleri | ||
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Revision as of 13:10, 27 July 2019
Stems creeping, few branched, slender, 1–1.5 mm diam., succulent, brittle; scales colorless, sparse, transparent-reticulate, ovate, 0.4 × 0.3 mm; stems shriveling in 2d year following emergence of leaves. Leaves scattered along stems, ephemeral (dying by late summer), soon shed; sterile leaves erect, 3–15 cm; fertile leaves erect, 5–20 cm; petioles, costae, and costules glabrous. Petiole dark brown in proximal 1/2 or less, becoming greenish distally, ca. 1 mm wide when dry, only slightly furrowed, glabrous. Blade broadly lanceolate to ovate-lanceolate, all pinnate-pinnatifid to 2-pinnate, herbaceous to membranous, thin; hydathodes superficial, often poorly developed or absent. Segments of sterile leaves ovate-lanceolate to fan-shaped, distal 1/2–1/3 shallowly lobed; segments of fertile leaves horizontal to ascending, often only partially differentiated from sterile leaves, lanceolate to linear, 8–25 × 2–4 mm; margins reflexed, forming continuous false indusia. Sporangia often in discrete sori. 2n = 60.
Habitat: New growth produced in spring, dying by late summer. Sheltered calcareous cliff crevices and rock ledges, typically in coniferous forest or other boreal habitats
Elevation: 0–3000 m
Distribution
Alta., B.C., N.B., Nfld., N.W.T., N.S., Ont., P.E.I., Que., Yukon, Alaska, Colo., Conn., Ill., Iowa, Maine, Mass., Mich., Minn., Mont., Nev., N.H., N.J., N.Y., Oreg., Pa., Utah, Vt., Wash., W.Va., Wis., Wyo., Europe in ne former Soviet republics, Asia.
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Cryptogramma stelleri"
Alta. +, B.C. +, N.B. +, Nfld. +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Yukon +, Alaska +, Colo. +, Conn. +, Ill. +, Iowa +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, Nev. +, N.H. +, N.J. +, N.Y. +, Oreg. +, Pa. +, Utah +, Vt. +, Wash. +, W.Va. +, Wis. +, Wyo. +, Europe in ne former Soviet republics + and Asia. +
New growth produced in spring, dying by late summer. Sheltered calcareous cliff crevices and rock ledges, typically in coniferous forest or other boreal habitats +
in Engler,Bot. Jahrb. Syst. +
1882 +
Cryptogramma stelleri +
Cryptogramma +
species +