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Comments ( Anglèis )

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It seems reasonable to follow in part E. Hultén’s (1968) broad concept of Antennaria monocephala (R. J. Bayer 1991). Hultén circumscribed it as containing three subspecies. The sexual phase of A. monocephala (i.e., subsp. monocephala and subsp. philonipha) is known from southern Alaska, south of the Brooks Range, and to Yukon Territory and adjacent areas of the Northwest Territories and across the Bering Strait on the Chukotka Peninsula. Within his concept of A. monocephala, Hultén also circumscribed the presumably autopolyploid apomictic form of the species as A. monocephala subsp. angustata, thereby extending the range of the species across the Canadian arctic into Greenland and down the western Cordillera into Montana and Wyoming.

Antennaria monocephala subsp. monocephala is an amphimictic progenitor of the A. alpina agamic complex, as well as the sexual progenitor of the apomicts of subsp. angustata.

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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 19: 390, 392, 393, 401, 411, 412, 413 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description ( Anglèis )

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Dioecious or gynoecious (stamin-ates uncommon or in equal frequen-cies as pistillates, respectively). Plants 5–13 cm (stems usually stipitate-glandular). Stolons 2–4 cm. Basal leaves 1-nerved, spatulate to narrowly spatulate or oblanceolate, 9–18 × 2–4 mm, tips mucronate, abaxial faces tomentose, adaxial glabrous or green-glabrescent, or both gray-pubescent. Cauline leaves linear, 4–11 mm, flagged. Heads usually borne singly (rarely 2–3). Involucres: staminate 5–7 mm; pistillate 5–8 mm. Phyllaries distally brown, dark brown, black, or olivaceous. Corollas: staminate 2.5–3.5 mm; pistillate 3.5–4 mm. Cypselae 1–1.3 mm, usually glabrous; pappi: staminate 3–4 mm (none in gynoecious populations); pistillate 4–5 mm. 2n = 28, 56, 60?, 70.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
sitassion bibliogràfica
Flora of North America Vol. 19: 390, 392, 393, 401, 411, 412, 413 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Synonym ( Anglèis )

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Antennaria alpina (Linnaeus) Gaertner var. monocephala (de Candolle) Torrey & A. Gray
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
sitassion bibliogràfica
Flora of North America Vol. 19: 390, 392, 393, 401, 411, 412, 413 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Antennaria monocephala ( Anglèis )

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Antennaria monocephala, the pygmy pussytoes,[1] is a flowering plant in the family Asteraceae. It is native to arctic and alpine regions of North America (Greenland, Labrador, Quebec, the three Canadian Arctic Territories, Alaska, British Columbia, Alberta, and Wyoming) as well as the Chukotka (Chukchi) Peninsula of Russia.[2][3][4][5][6]

Antennaria monocephala is a small herb rarely more than 15 cm (6 inches) tall. Male and female flowers are borne on separate plants; some populations are known in which all the individuals are female.[1]

Subspecies
  • Antennaria monocephala subsp. angustata (Greene) Hultén
  • Antennaria monocephala subsp. monocephala

References

  1. ^ a b Flora of North America Vol. 19, 20 and 21 Page 411 Pygmy pussytoes, Antennaria monocephala de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 269. 1838.
  2. ^ Biota of North America Program 2014 state-level distribution map
  3. ^ Hultén, E. 1968. Flora of Alaska i–xxi, 1–1008. Stanford University Press, Stanford.
  4. ^ Moss, E. H. 1983. Flora of Alberta (ed. 2) i–xii, 1–687. University of Toronto Press, Toronto
  5. ^ Cody, W. J. 1996. Flora of the Yukon Territory i–xvii, 1–669. NRC Research Press, Ottawa
  6. ^ Juzepczuk, Sergei Vasilievich & Komarov, Vladimir Leontjevich. 1930. Flora of Kamtschatka 3:130

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Antennaria monocephala: Brief Summary ( Anglèis )

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Antennaria monocephala, the pygmy pussytoes, is a flowering plant in the family Asteraceae. It is native to arctic and alpine regions of North America (Greenland, Labrador, Quebec, the three Canadian Arctic Territories, Alaska, British Columbia, Alberta, and Wyoming) as well as the Chukotka (Chukchi) Peninsula of Russia.

Antennaria monocephala is a small herb rarely more than 15 cm (6 inches) tall. Male and female flowers are borne on separate plants; some populations are known in which all the individuals are female.

Subspecies Antennaria monocephala subsp. angustata (Greene) Hultén Antennaria monocephala subsp. monocephala
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Antennaria monocephala ( ucrain )

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  1. Chuck Griffith. Dictionary of Botanical Epithets. Процитовано 19.11.2017. (англ.)
Aster Tataricus.png Це незавершена стаття про Айстрові.
Ви можете допомогти проекту, виправивши або дописавши її.
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Antennaria monocephala ( vietnamèis )

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Antennaria monocephala là một loài thực vật có hoa trong họ Cúc. Loài này được DC. mô tả khoa học đầu tiên năm 1838.[1]

Chú thích

  1. ^ The Plant List (2010). Antennaria monocephala. Truy cập ngày 4 tháng 6 năm 2013.

Liên kết ngoài

 src= Wikimedia Commons có thư viện hình ảnh và phương tiện truyền tải về Antennaria monocephala  src= Wikispecies có thông tin sinh học về Antennaria monocephala


Bài viết tông cúc Gnaphalieae 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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Antennaria monocephala: Brief Summary ( vietnamèis )

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Antennaria monocephala là một loài thực vật có hoa trong họ Cúc. Loài này được DC. mô tả khoa học đầu tiên năm 1838.

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