dcsimg

Comments

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This is a distinctive, high-altitude variant from the Deschampsia cespitosa complex, distinguished by its short, spikelike, purple-brown panicles.

A specimen collected in S Xizang (N of Kumaon, N India) has been assigned to Deschampsia cespitosa subsp. sikkimensis Noltie, which is otherwise known only from India (Sikkim). It is a small plant with compact panicles, close to D. koelerioides, but differing in its pyramidal panicle with the spikelets aggregated into fascicles.

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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 22: 332, 333 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
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eFloras.org
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Comments

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A distinctive species found in damp alpine meadows from 3300 to 5300 m. Tzvelev regards it as only a subspecies of Deschampsia caespitosa but the differences seem adequate to maintain it at species level.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 0: 525 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
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eFloras.org
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Description

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Perennial, forming small dense tussocks. Culms erect, 5–40 cm tall, 1–1.7 mm in diam., 1(or 2)-noded. Leaf sheaths loose, glabrous; leaf blades linear, flat or rolled, up to 20 cm, 1–3 mm wide, abaxial surface smooth, adaxial surface with coarse sharp ridges, smooth or scaberulous; ligule acuminate, up to 8 mm. Panicle densely contracted to spikelike, ovoid to oblong, 1–7 cm, brownish purple with golden sheen; branches very short, visible or not. Spikelets 4–6 mm, florets 2, rachilla internode ca. 1 mm; glumes subequal to spikelet, lower glume slightly shorter than or equaling upper glume, 1-veined, upper glume 3-veined, apex acute or obtuse, often lacerate; callus hairs ca. 1/3 lemma length; lemmas 3–4 mm, awned from or near lower 1/4, apex broadly 2-toothed, teeth irregularly lacerate; awn straight or slightly bent, equaling or slightly longer than lemma. Anthers 1.5–2.2 mm. Fl. Jul–Aug.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 22: 332, 333 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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eFloras

Description

provided by eFloras
Caespitose perennial; culms erect, 10-40 cm high. Leaves mostly basal; blades mostly 2-20 cm long and 2-3 mm wide, flat or rolled, coarsely ridged above, scaberulous on the ridges, smooth beneath; ligule scarious, up to 8 mm long. Panicle oblong or ovoid, 2-5 cm long, 1-1.5 cm wide, contracted and often spikelike. Spikelets narrowly oblong, 4-5 mm long, 2-flowered, usually purple with a golden sheen; glumes acute or obtuse, often lacerate at the tip, the lower oblong, 3-3.6 mm long, the upper elliptic 3.6-2 mm long and 3-nerved; lemma elliptic-oblong, 3.3-4.3 mm long, 2-lobed, the lobes irregularly lacerate, awned from near the base (always within the lower third); awns mostly straight, capillary, 2.5-4 mm long, usually projecting beyond the glumes.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 0: 525 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
original
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eFloras

Distribution

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Gansu, Nei Mongol, Qinghai, Xinjiang, Xizang [E Afghanistan, Kashmir, Kazakhstan (Tarbagatai Mountains), Kyrgyzstan, Mongolia, N Pakistan, Russia (S Siberia), Tajikistan (Pamirs), Uzbekistan].
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 22: 332, 333 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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eFloras

Distribution

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Distribution: Pakistan (N.W.F.P. & Kashmir); Afghanistan, Pamir-Alai and Tien Shan.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 0: 525 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
original
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eFloras

Flower/Fruit

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Fl. & Fr. Per.: July-August.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 0: 525 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
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eFloras

Habitat

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Damp alpine meadows, wet places near rivers and stream banks; 3500–5100 m.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 22: 332, 333 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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eFloras

Synonym

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Deschampsia cespitosa (Linnaeus) P. Beauvois subsp. ko-elerioides (Regel) Tzvelev.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 22: 332, 333 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
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eFloras

Peyritschia koelerioides ( Spanish; Castilian )

provided by wikipedia ES

Peyritschia koelerioides, es una especie de plantas herbáceas perteneciente a la familia de las poáceas.[1]​ Es originario de México.

Descripción

Tiene tallos que alcanzan un tamaño de 20-80 cm de altura, glabros, simples. Vainas glabras; lígula de 1-3 mm; láminas de 1-3.5 mm de ancho, aplanadas, glabras. Panícula de 9-18 x 0.3-1 cm, espiciforme, densa, lobulada; eje escabroso, ocultando por las espiguillas; ramas adpresas. Espiguillas 2.5-4.5 mm; glumas 2.5-4.5 mm, subiguales, la inferior 1-nervia, la superior 3-nervia; flósculos 2; lema inferior 2.5-3.5 mm, glabra, el ápice 2-lobado, los lóbulos obtusos; arista ausente o hasta 1 mm, recta, insertada inmediatamente abajo del ápice; callo con pocos tricomas hasta 0.5 mm; raquilla esparcidamente pilosa con tricomas hasta 0.5 mm; estambres 2, las anteras 0.7-1.3 mm. Cariopsis 1.7-2 mm; endospermo líquido. Tiene un número de cromosomas de 2n=28.[2]

Distribución y hábitat

Se encuentra en pastizales, bosques abiertos de Pinus o Quercus[3]​ a una altitud de 2800-4000 metros desde el sur de México hasta Guatemala.

Taxonomía

Peyritschia koelerioides fue descrita por (Peyr.) E.Fourn. y publicado en Mexicanas Plantas 2: 110. 1886.[2]

Sinonimia
  • Aira koelerioides Peyr. basónimo
  • Deschampsia koelerioides (Peyr.) Benth.
  • Graphephorum altijugum E.Fourn.
  • Trisetum altijugum (E.Fourn.) Scribn.[4][5]

Referencias

  1. (en inglés) Watson L, Dallwitz MJ. (2008). «The grass genera of the world: descriptions, illustrations, identification, and information retrieval; including synonyms, morphology, anatomy, physiology, phytochemistry, cytology, classification, pathogens, world and local distribution, and references». The Grass Genera of the World. Consultado el 8 de marzo de 2010.
  2. a b «Peyritschia koelerioides». Tropicos.org. Missouri Botanical Garden. Consultado el 2 de febrero de 2013.
  3. G (de Koninck 135, ISC)
  4. Peyritschia koelerioides en PlantList/
  5. «Peyritschia koelerioides». World Checklist of Selected Plant Families. Consultado el 2 de febrero de 2013.

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Peyritschia koelerioides: Brief Summary ( Spanish; Castilian )

provided by wikipedia ES

Peyritschia koelerioides, es una especie de plantas herbáceas perteneciente a la familia de las poáceas.​ Es originario de México.

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Autores y editores de Wikipedia
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Deschampsia koelerioides ( Vietnamese )

provided by wikipedia VI

Deschampsia koelerioides là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Regel mô tả khoa học đầu tiên năm 1868.[1]

Chú thích

  1. ^ The Plant List (2010). Deschampsia koelerioides. Truy cập ngày 6 tháng 6 năm 2013.

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Bài viết chủ đề tông thực vật Poeae 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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Deschampsia koelerioides: Brief Summary ( Vietnamese )

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Deschampsia koelerioides là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Regel mô tả khoa học đầu tiên năm 1868.

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穗发草 ( Chinese )

provided by wikipedia 中文维基百科
二名法 Deschampsia koelerioides
Regel

穗发草学名Deschampsia koelerioides)为禾本科发草属下的一个种。

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穗发草: Brief Summary ( Chinese )

provided by wikipedia 中文维基百科

穗发草(学名:Deschampsia koelerioides)为禾本科发草属下的一个种。

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维基百科作者和编辑