Comments
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In Florida, Ponthieva racemosa is self-compatible but not autogamous. Natural fruit-set in one population in northern Florida was 35% (J. D. Ackerman 1995). In Florida, small halictid bees were observed visiting the flowers (C. A. Luer 1972).
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Description
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Plants 30–60 cm. Roots 2–3 mm diam. Stems subterranean, short. Leaves green at anthesis, 2–6, subpetiolate; blade elliptic to oblanceolate, 5–17 × 2–5 cm, apex rounded to acute. Inflorescences: peduncle to 25 cm, partially enclosed by tubular sheaths, proximalmost sometimes leafy; rachis laxly 20–35-flowered, 5–25 cm; floral bracts narrowly lanceolate, clasping base of ovary, to 10 mm, apex acuminate, pubescent. Flowers: sepals greenish white, adaxially pubescent; dorsal sepal distinct, ovate-elliptic to elliptic-lanceolate, 4–7 × 2–3 mm, apex obtuse; lateral sepals broadly, obliquely ovate, 4.3–6.5 × 2.5–3.5 mm, apex acute to obtuse; petals white, green-veined, obliquely triangular, 4–6 × 3.5–5 mm, margins minutely ciliate or entire, glabrous; lip white with green, deeply concave center, distinctly clawed, suborbiculate, 5–7 × 5–7 mm, apex short-caudate; column white, 4–5 mm; pedicellate ovary 10–20 mm. Capsules 8–13 mm.
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Distribution
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Ala., Fla., Ga., La., Miss., N.C., S.C., Tex., Va.; Mexico; West Indies; Central America; South America.
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Flowering/Fruiting
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Flowering fall--winter (Sep--Feb).
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Habitat
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Moist, shady hammocks, swamps, ravines, wet savannas, pine forests; 0--50m.
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Synonym
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Arethusa racemosa Walter, Fl. Carol., 222. 1788; Neottia glandulosa Sims; Ponthieva glandulosa (Sims) R. Brown
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Ponthieva racemosa
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İngilizce
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Ponthieva racemosa, commonly called the hairy shadow witch or racemose ponthieva, is a species of orchid found from the southeastern United States (from Texas to Virginia), Mexico, Central America, the West Indies and northern South America as far south as Bolivia.[1][2][3][4][5][6][7][8][9]
References
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^ a b Kew World Checklist of Selected Plant Families
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^ Flora of North America, v 26 p 548, Ponthieva racemosa (Walter) C. Mohr, Contr. U.S. Natl. Herb. 6: 460. 1901.
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^ Biota of North America Program, county distribution map, Ponthieva racemosa
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^ Dressler, R.L. 2003. Orchidaceae. En: Manual de Plantas de Costa Rica. Vol. 3. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.). Monographs in systematic botany from the Missouri Botanical Garden 93: 1–595.
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^ Brako, L. & J. L. Zarucchi. (eds.) 1993. Catalogue of the Flowering Plants and Gymnosperms of Peru. Monographs in systematic botany from the Missouri Botanical Garden 45: i–xl, 1–1286.
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^ Jørgensen, P. M. & S. León-Yánez. (eds.) 1999. Cat. Vasc. Pl. Ecuador, Monographs in systematic botany from the Missouri Botanical Garden 75: i–viii, 1–1181. Missouri Botanical Garden, St. Louis
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^ Correa A., M.D., C. Galdames & M. Stapf. 2004. Catálogo de las Plantas Vasculares de Panamá 1–599. Smithsonian Tropical Research Institute, Panamá
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^ Schlechter, Friedrich Richard Rudolf. 1923. Repertorium Specierum Novarum Regni Vegetabilis, Beihefte 19: 84.
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^ Reichenbach, Heinrich Gustav. 1866. Beitrage zu einer Orchideenkunde Central-Amerika's 63.
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Ponthieva racemosa: Brief Summary
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wikipedia EN tarafından sağlandı
Ponthieva racemosa, commonly called the hairy shadow witch or racemose ponthieva, is a species of orchid found from the southeastern United States (from Texas to Virginia), Mexico, Central America, the West Indies and northern South America as far south as Bolivia.
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Ponthieva racemosa
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Lehçe
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wikipedia POL tarafından sağlandı
Multimedia w Wikimedia Commons Ponthieva racemosa (Walter) C.Mohr – gatunek rośliny z rodziny storczykowatych (Orchidaceae Juss.). Występuje naturalnie w Ameryce Północnej, Południowej i Karaibach[3].
Rozmieszczenie geograficzne
Rośnie naturalnie w Stanach Zjednoczonych, Karaibach, Meksyku, Gwatemali, Salwadorze, Hondurasie, Nikaragui, Kostaryce, Panamie, Kolumbii, Wenezueli, Brazylii i Ekwadorze[3]. Według niektórych źródeł występuje także w Peru[4].
Morfologia
- Korzenie
- Włókniste[4].
- Liście
- Ostro zakończone[4].
- Kwiaty
- Pojawiają się późną zimą oraz wiosną. Usadowione są na wyprostowanych kwiatostanach. Kwiatostan na 25 cm długości, natomiast średnica kwiatu wynosi 1,25 cm. Są owłosione. Przylistki mają eliptyczno-lancetowaty kształt[4].
Biologia i ekologia
Naturalnymi siedliskami są lasy na wysokości od 200 do 4000 metrów. Jest rośliną naziemną, choć sporadycznie bywa epifitem[4].
Przypisy
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Ponthieva racemosa: Brief Summary
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Lehçe
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wikipedia POL tarafından sağlandı
Ponthieva racemosa (Walter) C.Mohr – gatunek rośliny z rodziny storczykowatych (Orchidaceae Juss.). Występuje naturalnie w Ameryce Północnej, Południowej i Karaibach.
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Ponthieva racemosa
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Vietnamca
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wikipedia VI tarafından sağlandı
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Ponthieva racemosa: Brief Summary
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Vietnamca
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wikipedia VI tarafından sağlandı
Ponthieva racemosa là một loài thực vật trong họ Lan. Chúng được tìm thấy ở vùng Đông nam Hoa Kỳ đến México và tropical America.
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