Comments
(
الإنجليزية
)
المقدمة من eFloras
Ophioglossum nudicaule is much less common than O . crotalophoroides ; they often occur together and are found in the same or similar habitats. The gametophytes of O . nudicaule are typical for the genus (M.R. Mesler et al. 1975). A given colony may be made up of small, medium, or large plants (W.H. Wagner Jr., C. M. Allen, and G.P. Landry 1984).
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
(
الإنجليزية
)
المقدمة من eFloras
Roots yellowish to pale brown, to 15 per plant, 0.2-0.8mm diam., proliferous at wide intervals. Stem upright, 0.2-1.2 cm, 1-5 mm diam., commonly 2-3 leaves per stem. Trophophore stalk to 0.8 cm, 0.1-0.2 times length of trophophore blade. Trophophore blade spreading, usually plane when alive, green, dull, largest leaves drying with pale central band, ovate to lanceolate, thin, blades less than 0.4 × 0.3 cm in many colonies but blades large, to 4.5 × 1.7 cm in other colonies, herbaceous, base gradually tapered, apex with short apiculum; venation finely complex-reticulate, areoles with only included veinlets in smaller blades but with numerous secondary areoles in largest blades. Sporophores arising at or near ground level, 2-6 times as long as trophophore; sporangial clusters 0.5-1.5cm, 1.5 mm or less wide, mostly with 5-12 pairs of sporangia, apiculum 0.5-1 mm.
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- cc-by-nc-sa-3.0
- حقوق النشر
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
(
الإنجليزية
)
المقدمة من eFloras
Ala., Ark., Fla., Ga., La., Miss., N.C., Okla., S.C., Tex.; Mexico; West Indies; Central America; South America; Asia; Africa; Pacific Islands.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
(
الإنجليزية
)
المقدمة من eFloras
Leaves appearing in latter half of winter and early spring, sometimes with second flush in same year after heavy rains. Second-growth fields, vacant lots, roadside ditches, and lawns; 0-90m.
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- cc-by-nc-sa-3.0
- حقوق النشر
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
(
الإنجليزية
)
المقدمة من eFloras
Ophioglossum dendroneuron E.P. St.John; O. ellipticum Hooker & Greville; O. mononeuron E.P. St.John
- ترخيص
- cc-by-nc-sa-3.0
- حقوق النشر
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
(
الإسبانية، القشتالية
)
المقدمة من IABIN
XI
Comprehensive Description
(
الإنجليزية
)
المقدمة من North American Flora
Ophioglossum tenerum Mett.; Prantl, Ber. Deuts
Bot. Ges. 1: 352. 1883.
Ophioglossum pusillum Nutt. Gen. 2 : 248. 1818. Not O. pusillum Raf. 1814.
Plant 1.5-10 cm. high, often in sand; rhizome stout, cylindric or globose, 2-5 mm. long, 1.8-5 mm. thick; roots persistent, fibrous, about 0.5 mm. thick; leaves usually two (1-4) ; commonstalk 0.1-2 cm. long, hypogean ; lamina sessile or short-stalked, mostly plane and nearly horizontal, elliptic to broadly ovate, acute or obtuse below, acute above, usually not apiculate, 0.4-2 cm. long, 0.2-0.9 cm. broad, the basal veins 3-5, the median vein slightly the strongest, emitting one or two branches, the areolae divergent from the median vein, mostly small, short and broad, the largest with several free and anastomosing included veinlets; sporophyl slender, 1.5-8 cm. long, the spike rather slender, 2-12 mm. long, 1-2 mm. thick, apiculate; sporangia 2-18-jugate; spores .03-.04 mm. thick, finelypitted and verrucose.
Type locality : Near Savannah, Georgia. Distribution : South Carolina to Louisiana ; Cuba.
- الاقتباس الببليوغرافي
- Lucien Marcus Underwood, Ralph Curtiss BenedictWilliam Ralph Maxon. 1909. OPHIOGLOSSALES-FILICALES; OPHIOGLOSSACEAE, MARATTIACEAE, OSMUNDACEAE, CERATOPTERIDACEAE, SCHIZAEACEAE, GLEICHENIACEAE, CYATHEACEAE (pars). North American flora. vol 16(1). New York Botanical Garden, New York, NY
Ophioglossum nudicaule
(
الفيتنامية
)
المقدمة من wikipedia VI
Ophioglossum nudicaule là một loài dương xỉ trong họ Ophioglossaceae. Loài này được L. f. mô tả khoa học đầu tiên năm 1781.[1]
Chú thích
Liên kết ngoài
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Ophioglossum nudicaule: Brief Summary
(
الفيتنامية
)
المقدمة من wikipedia VI
Ophioglossum nudicaule là một loài dương xỉ trong họ Ophioglossaceae. Loài này được L. f. mô tả khoa học đầu tiên năm 1781.
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- Wikipedia tác giả và biên tập viên