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Comments ( anglais )

fourni par eFloras
Pellaea breweri is distinguished from other North American taxa (except for some populations of P . glabella ) by the presence of prominent articulation lines near the base of the petiole. The leaves are easily detached, and many herbarium specimens consist of separate leaves and stems, the latter covered with petiole bases of approximately equal length.
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cc-by-nc-sa-3.0
droit d’auteur
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
citation bibliographique
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
rédacteur
Flora of North America Editorial Committee
projet
eFloras.org
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eFloras

Description ( anglais )

fourni par eFloras
Stems compact, ascending, stout, 5--10 mm diam.; scales uniformly reddish brown, linear-subulate, 0.1--0.3 mm wide, thin, margins sinuous, nearly entire. Leaves monomorphic, clustered on stem, 2.5--20 cm; croziers sparsely villous. Petiole brown, lustrous, rounded adaxially, with prominent articulation lines near base. Blade linear-oblong, pinnate-pinnatifid proximally, 1--4 cm wide; rachis brown proximally, green distally, straight, rounded adaxially, glabrous to sparsely villous. Pinnae ascending or perpendicular to rachis, decurrent on rachis, deeply 2-lobed (mitten-shaped) near base of leaf; costae absent. Ultimate segments lanceolate-deltate, 5--25 mm, herbaceous, glabrous; margins recurved on fertile segments, covering less than 1/2 abaxial surface, borders whitish, erose-denticulate; apex obtuse or rounded. Veins of ultimate segments evident. Sporangia sessile or subsessile, containing 64 spores, not intermixed with farina-producing glands. 2 n = 58.
licence
cc-by-nc-sa-3.0
droit d’auteur
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
citation bibliographique
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
rédacteur
Flora of North America Editorial Committee
projet
eFloras.org
original
visiter la source
site partenaire
eFloras

Distribution ( anglais )

fourni par eFloras
Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.
licence
cc-by-nc-sa-3.0
droit d’auteur
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
citation bibliographique
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
rédacteur
Flora of North America Editorial Committee
projet
eFloras.org
original
visiter la source
site partenaire
eFloras

Habitat ( anglais )

fourni par eFloras
Sporulating summer--fall. Cliffs and rocky slopes, on a variety of substrates including granite and limestone; 1600--3800m.
licence
cc-by-nc-sa-3.0
droit d’auteur
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
citation bibliographique
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
rédacteur
Flora of North America Editorial Committee
projet
eFloras.org
original
visiter la source
site partenaire
eFloras

Pellaea breweri ( anglais )

fourni par wikipedia EN

Pellaea breweri is a species of fern known by the common name Brewer's cliffbrake. It is native to much of the Western United States. It grows in rocky habitat such as cliffs and mountain slopes.

Description

Pellaea breweri grows from a branching reddish-brown rhizome covered in hairlike scales. Each leaf is up to 20 or 25 centimeters long. It is composed of a shiny brown rachis lined with widely spaced leaflets. The thick, pale green leaflets vary in shape from lance-shaped to diamond, triangular, or spade-shaped, and are sometimes divided deeply into lobes, or into two smaller leaflets. The edges of each segment are rolled under. The sporangia are located under the edges.

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wikipedia EN

Pellaea breweri: Brief Summary ( anglais )

fourni par wikipedia EN

Pellaea breweri is a species of fern known by the common name Brewer's cliffbrake. It is native to much of the Western United States. It grows in rocky habitat such as cliffs and mountain slopes.

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wikipedia EN

Pellaea breweri ( espagnol ; castillan )

fourni par wikipedia ES

Pellaea breweri es una especie de helecho de la familia botánica Pteridaceae. Se encuentra en el oeste de los Estados Unidos, donde crece en hábitat rocosos, tales como acantilados y laderas de montañas.

Descripción

Pellaea breweri crece a partir de una ramificación de color marrón rojizo con rizoma cubierto de escamas similares a pelos. Cada hoja tiene hasta 20 o 25 centímetros de largo. Se compone de un raquis brillante de color marrón llenas de volantes muy espaciados entre sí. Los foliolos de color verde pálido varían en forma de lanza, en forma de diamante, triangular o con forma de pala, y a veces profundamente divididos en lóbulos, o en dos hojas más pequeñas. Los bordes de cada segmento se enrollan. El esporangios se encuentran en los bordes.

Taxonomía

Pellaea breweri fue descrita por Daniel Cady Eaton y publicado en Proceedings of the American Academy of Arts and Sciences 6: 555. 1865.[1][2]

Referencias

 title=
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wikipedia ES

Pellaea breweri: Brief Summary ( espagnol ; castillan )

fourni par wikipedia ES

Pellaea breweri es una especie de helecho de la familia botánica Pteridaceae. Se encuentra en el oeste de los Estados Unidos, donde crece en hábitat rocosos, tales como acantilados y laderas de montañas.

licence
cc-by-sa-3.0
droit d’auteur
Autores y editores de Wikipedia
original
visiter la source
site partenaire
wikipedia ES

Pellaea breweri ( vietnamien )

fourni par wikipedia VI

Pellaea breweri là một loài dương xỉ trong họ Pteridaceae. Loài này được D.C. Eaton mô tả khoa học đầu tiên năm 1865.[1]

Hình ảnh

Chú thích

  1. ^ The Plant List (2010). Pellaea breweri. Truy cập ngày 28 tháng 5 năm 2014.

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cc-by-sa-3.0
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Wikipedia tác giả và biên tập viên
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wikipedia VI

Pellaea breweri: Brief Summary ( vietnamien )

fourni par wikipedia VI

Pellaea breweri là một loài dương xỉ trong họ Pteridaceae. Loài này được D.C. Eaton mô tả khoa học đầu tiên năm 1865.

licence
cc-by-sa-3.0
droit d’auteur
Wikipedia tác giả và biên tập viên
original
visiter la source
site partenaire
wikipedia VI