Comments
(
Inglês
)
fornecido por eFloras
The distinctive Polypodium scouleri has occasionally been assigned to the genus Goniophlebium because of its anastomosing venation and conspicuous areoles. Its venation pattern can be quite variable, however, and cannot be used as the sole feature distinguishing P . scouleri from P . californicum . Combining venation characteristics with others provided in the key distinguishes it clearly from its congeners in Polypodium . Some evidence suggests that P . scouleri hybridizes with P . californicum (S. A. Whitmore, unpubl.). I. Manton (1951) reported diploid and triploid cytotypes for P . scouleri , and variation in spore size suggests that the species may also include tetraploid populations.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
(
Inglês
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fornecido por eFloras
Stems conspicuously whitish pruinose, stout, 3--12 mm diam., bland to slightly sweet-tasting; scales concolored to weakly bicolored, uniformly dark brown or with pale margins and base, lanceolate, symmetric, margins denticulate. Leaves to 85 cm. Petiole stout, to 3 mm diam. Blade ovate-lanceolate, pinnatifid, usually widest just above base, to 27 cm wide, stiff and leathery; rachis sparsely scaly to glabrescent abaxially, glabrous adaxially; scales bicolored, ovate-lanceolate, much more than 6 cells wide. Segments oblong to linear, usually more than 12 mm wide; margins entire to crenulate; apex rounded to rarely broadly acute; midrib glabrous adaxially. Venation anastomosing, usually forming 1 row of areoles. Sori crowded against midrib, usually more than 3 mm diam., circular when immature. Sporangiasters absent. Spores usually less than 52 µm, rugose, surface projections less than 3 µm tall. 2 n = 74, 111.
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Distribution
(
Inglês
)
fornecido por eFloras
B.C.; Calif., Oreg., Wash.; Mexico in Baja California.
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Habitat
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Inglês
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fornecido por eFloras
Sporulating late fall--spring. Cracks and ledges on cliffs, occasionally epiphytic; on a variety of substrates but preferring volcanic substrates in warmer, drier climates, rarely far from ocean; 0--500m.
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Distribution
(
Inglês
)
fornecido por EOL authors
Polypodium scouleri occurs from British Columbia south through Washington State, Oregon, California and Baja California (Guadalupe Island). Within the core range of California the species is found in a variety of sub-regions including the North Coast, Outer North Coast Ranges, Central Coast, San Francisco Bay Area.
Polypodium scouleri
(
Inglês
)
fornecido por wikipedia EN
Polypodium scouleri is a species of fern known by the common names leathery polypody, Scouler's polypody, coast polypody and leather-leaf fern. It is native to coastal western North America from British Columbia to Guadalupe Island off Baja California. It is a plant of the coastline, growing in cracks on coastal bluffs, in oceanside forests, beach dunes, and similar habitat. It is often affected by heavy fogs and sea spray. This polypody anchors with a waxy, scaly rhizome. It produces triangular or oblong leaves up to 85 centimeters in maximum length and 8 cm width. Each leaf is made up of many round-tipped linear or oblong segments which are usually stiff and leathery in texture and edged with shallow, rounded teeth. The underside of each leaf segment is crowded with rounded sori each up to half a centimeter wide. The sori contain the spores.
References
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Polypodium scouleri: Brief Summary
(
Inglês
)
fornecido por wikipedia EN
Polypodium scouleri is a species of fern known by the common names leathery polypody, Scouler's polypody, coast polypody and leather-leaf fern. It is native to coastal western North America from British Columbia to Guadalupe Island off Baja California. It is a plant of the coastline, growing in cracks on coastal bluffs, in oceanside forests, beach dunes, and similar habitat. It is often affected by heavy fogs and sea spray. This polypody anchors with a waxy, scaly rhizome. It produces triangular or oblong leaves up to 85 centimeters in maximum length and 8 cm width. Each leaf is made up of many round-tipped linear or oblong segments which are usually stiff and leathery in texture and edged with shallow, rounded teeth. The underside of each leaf segment is crowded with rounded sori each up to half a centimeter wide. The sori contain the spores.
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Polypodium scouleri
(
Espanhol; Castelhano
)
fornecido por wikipedia ES
El polipodio de la costa (Polypodium scouleri) es una especie de helechos de la familia Polypodiaceae. Nativa de la costa occidental de América del Norte.
Descripción
Esta especie tiene frondes coriáceae de unos 38 cm de largo, formadas por hasta 14 pares de folíolos rígidos con pecíolos sarmentosos de 10 cm. Es una especie resistente y tolerante del sol que prospera en las rocallas.
Taxonomía
Polypodium scouleri fue descrita por Hooker & Grev. y publicado en Icones Filicum 1: pl. 56. 1829.[1]
- Sinonimia
-
Goniophlebium scouleri J. Sm.
-
Polypodium carnosum Kellogg
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Polypodium pachyphyllum D.C. Eaton[2]
Referencias
Bibliografía
- Abrams, L. 1923. Ferns to Birthworts. 1: 1–557. In L. Abrams Ill. Fl. Pacific States. Stanford University Press, Stanford.
- CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, Mexico City.
- Flora of North America Editorial Committee, e. 1993. Pteridophytes and Gymnosperms. 2: i–xvi, 1–475. In Fl. N. Amer.. Oxford University Press, New York.
- Hitchcock, C. H., A. J. Cronquist, F. M. Ownbey & J. W. Thompson. 1969. Vascular Cryptogams, Gymnosperms, and Monocotyledons. 1: 1–914. In Vasc. Pl. Pacific N.W.. University of Washington Press, Seattle.
- Lellinger, D. B. 1985. A Field Manual of the Ferns and Fern Allies of the United States and Canada. 389 pp.
- Mickel, J. T. & A. R. Smith. 2004. The Pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1–1054.
- Munz, P. A. 1974. Fl. S. Calif. 1–1086. University of California Press, Berkeley.
- Munz, P. A. & D. D. Keck. 1959. Cal. Fl. 1–1681. University of California Press, Berkeley.
- Scoggan, H. J. 1978 [1979]. Pteridophyta, Gymnospermae, Monocotyledoneae. 2: 93–545. In Fl. Canada. National Museums of Canada, Ottawa.
- Taylor, T. M. C. 1970. Pacific Northwest Ferns and Their Allies. 247 pp.
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Polypodium scouleri: Brief Summary
(
Espanhol; Castelhano
)
fornecido por wikipedia ES
El polipodio de la costa (Polypodium scouleri) es una especie de helechos de la familia Polypodiaceae. Nativa de la costa occidental de América del Norte.
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Polypodium scouleri
(
Vietnamita
)
fornecido por wikipedia VI
Polypodium scouleri là một loài thực vật có mạch trong họ Polypodiaceae. Loài này được Hook. & Grev. miêu tả khoa học đầu tiên năm 1829.[1]
Hình ảnh
Chú thích
Tham khảo
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Polypodium scouleri: Brief Summary
(
Vietnamita
)
fornecido por wikipedia VI
Polypodium scouleri là một loài thực vật có mạch trong họ Polypodiaceae. Loài này được Hook. & Grev. miêu tả khoa học đầu tiên năm 1829.
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Datos: Q7226780
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