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Plancia ëd Arctostaphylos morroensis Wiesl. & Schreiber
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Arctostaphylos morroensis Wiesl. & Schreiber

Evolutionary distribution ( Anglèis )

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The entire genus is situated in a monophyletic clade or sub-family known as the Arbutoideae, which is populated by taxa having bright fleshy berries with fibrous or bony endocarp.. Evolution of the genus is relatively recent, with hybridization playing an important role; however, convergent evolution patterns appear to complicate cladistic constructions for certain portions of the genus cladogram. In any case, fossil ancestors of the Arctostaphylos genus have been suggested to have occurred in the Middle Miocene, with modern species beginning to take shape in the Late Tertiary. It has been further posited that in the earlier Tertiary a greater species diversity was present, influenced by influence of floristic influence of southwestern North America ancestors. This hypothesis also suggests that the present palette of California Arctostaphylos species became more depauperate upon arrival of a cooler drier climate in the Late Tertiary.These evolutionary views are coincident with other research that points to fire-dependent plant associations developing in the Late Miocene in California. Present species distribution of Arctostaphylos morroensis is restricted to a very small coastal extent in San Luis Obispo County, California. Total land area of population occurrence is less than 900 acres in sandy coastal soils, originating as Pleistocene unstabilized or semi-stabilized dunes. Specific occurrence includes Montana de Oro State Park.
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C.Michael Hogan
sitassion bibliogràfica
C.Michael Hogan. 2012. Arctostaphylos. Encyclopedia of Earth. Eds. M. McGinley & C.Cleveland. National council for Science and the Environment. Washington DC
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C. Michael Hogan (cmichaelhogan)
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Arctostaphylos morroensis ( Aser )

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Arctostaphylos morroensis (lat. Arctostaphylos morroensis) - erikakimilər fəsiləsinin ayıqulağı cinsinə aid bitki növü.

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Arctostaphylos morroensis: Brief Summary ( Aser )

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Arctostaphylos morroensis (lat. Arctostaphylos morroensis) - erikakimilər fəsiləsinin ayıqulağı cinsinə aid bitki növü.

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Arctostaphylos morroensis ( Anglèis )

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Arctostaphylos morroensis is a species of manzanita known by the common name Morro manzanita. This shrub is endemic to San Luis Obispo County, California, where it is known only from the vicinity of Morro Bay.

Distribution

There are 18 occurrences of the Arctostaphylos morroensis plant, and it is abundant in some local areas.[2] It is limited to a specific type of substrate known as "Baywood fine sands", a type of sandy soil which originated in the Pleistocene as windblown sand dunes.[3] The plant is found on less than 900 acres of coastal sage scrub and chaparral habitat, sometimes forming monotypic stands on hillsides.[3]

Two thirds of its habitat is privately owned, some of it is slated for development, and its habitat requirements are narrow; these and other problems led to the plant's being listed as a threatened species in 1994.[3] Some of the plants are protected within Montaña de Oro State Park.[3]

Description

Arctostaphylos morroensis is a spreading shrub, reaching up to 4 meters in height but generally staying wider than tall. It has shreddy red-gray bark and whiskery bristles on the smaller branches and twigs. The leaves are oval-shaped and slightly convex, dark green on the upper surface and duller gray-green beneath. Plentiful flowers hang in dense clusters on short pedicels during the winter months. They are usually very light pink, urn-shaped, and hairy inside. The fruits are fuzzy red drupes each about a centimeter wide.

Cultivation

The Arctostaphylos morroensis plant is cultivated as a landscaping ornamental plant, for California native plant, drought tolerant, and natural habitat gardens.

References

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Arctostaphylos morroensis: Brief Summary ( Anglèis )

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Arctostaphylos morroensis is a species of manzanita known by the common name Morro manzanita. This shrub is endemic to San Luis Obispo County, California, where it is known only from the vicinity of Morro Bay.

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Arctostaphylos morroensis ( Fransèis )

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Arctostaphylos morroensis est une espèce de plante nord-américaine de la famille des Ericaceae.

Description

Arctostaphylos morroensis est un arbuste étalé, atteignant jusqu'à 4 mètres de hauteur mais restant généralement plus large que haut. Il a une écorce rouge-gris déchiquetée et des poils durs sur les petites branches et les rameaux. Les feuilles sont de forme ovale et légèrement convexes, vert foncé sur la face supérieure et gris-vert plus terne en dessous. De nombreuses fleurs pendent en grappes denses sur des pédicelles courts pendant les mois d'hiver. Ils sont généralement rose très clair, en forme d'urne et poilus à l'intérieur. Les fruits sont des drupes rouges floues d'environ un centimètre de large chacune.

Répartition

Arctostaphylos morroensis est endémique de Morro Bay, dans le comté de San Luis Obispo, en Californie. Il y a 18 occurrences de la plante et elle est abondante dans certaines zones locales. Il est limité à un type spécifique de substrat connu sous le nom de "sables fins de Baywood", un type de sol sablonneux originaire du Pléistocène sous forme de dunes de sable soufflées par le vent. La plante se trouve sur moins de 900 acres de broussailles de sauge côtières et de chaparral, formant parfois des peuplements monotypiques sur les coteaux.

Les deux tiers de son habitat appartiennent à des intérêts privés, une partie de son développement est prévue et ses besoins en matière d'habitat sont étroits ; ces problèmes et d'autres conduisent à l'inscription de la plante comme espèce menacée en 1994. Certaines plantes sont protégées dans le parc d'État de Montaña de Oro.

Usage

Arctostaphylos morroensis est cultivé comme plante ornementale d'aménagement paysager pour les jardins de plantes indigènes de Californie, tolérants à la sécheresse et d'habitats naturels.

Notes et références

  • (en) Cet article est partiellement ou en totalité issu de l’article de Wikipédia en anglais intitulé .

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Arctostaphylos morroensis: Brief Summary ( Fransèis )

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Arctostaphylos morroensis est une espèce de plante nord-américaine de la famille des Ericaceae.

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Arctostaphylos morroensis ( vietnamèis )

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Arctostaphylos morroensis là một loài thực vật có hoa trong họ Thạch nam. Loài này được Wiesl. & B.Schreib. mô tả khoa học đầu tiên năm 1939.[1]

Hình ảnh

Chú thích

  1. ^ The Plant List (2010). Arctostaphylos morroensis. Truy cập ngày 7 tháng 6 năm 2013.

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Hình tượng sơ khai Bài viết Họ Thạch nam (Ericaceae) này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Wikipedia tác giả và biên tập viên
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wikipedia VI

Arctostaphylos morroensis: Brief Summary ( vietnamèis )

fornì da wikipedia VI

Arctostaphylos morroensis là một loài thực vật có hoa trong họ Thạch nam. Loài này được Wiesl. & B.Schreib. mô tả khoa học đầu tiên năm 1939.

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Wikipedia tác giả và biên tập viên
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visité la sorgiss
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wikipedia VI