Cryptogramma stelleri

(S. G. Gmelin) Prantl in Engler

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 Novi Comment. Acad. Sci. Imp. Petrop. 12: 519. 1768
Treatment appears in FNA Volume 2.

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 ovatelanceolate, all pinnate-pinnatifid to 2-pinnate, herbaceous to membranous, thin; hydathodes superficial, often poorly developed or absent. Segments of sterile leaves ovatelanceolate 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

V2 102-distribution-map.gif

Alta., B.C., N.B., Nfld. and Labr. (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.

"broad" is not a number.

... more about "Cryptogramma stelleri"
Edward R. Alverson +
(S. G. Gmelin) Prantl in Engler +
Pteris stelleri +
pubescent +  and glabrous +
lustrous +  and dull to somewhat +
pinnate-pinnatifid +  and 2-pinnate +
Slender rock-brake or cliff-brake +, Steller's rock-brake +, fragile rock-brake +  and cryptogramme de steller +
Alta. +, B.C. +, N.B. +, Nfld. and Labr. (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 +
0–3000 m +
yellow +  and white +
obcordate;reniform +
New growth produced in spring, dying by late summer. Sheltered calcareous cliff crevices and rock ledges, typically in coniferous forest or other boreal habitats +
monomorphic +
ephemeral +
recurved +  and reflexed +
sterile +  and fertile +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
noncircinate +  and circinate +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
dentate or +  and shallowly deeply cut +
greenish;dark-brown +
in Engler,Bot. Jahrb. Syst. +
persistent +
0.4 cm4 mm <br />0.004 m <br /> (?) +
sterile +  and fertile +
differentiated +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
discrete +
tetrahedral +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
decumbent +  and erect or creeping +
slender +
succulent +
Cryptogramma stelleri +
Cryptogramma +
species +
adnate +  and free +
crescent--shaped +  and roundish +