Comments
provided by eFloras
This very remarkable plant is becoming extremely rare in Florida.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
provided by eFloras
Roots tan, to 15 per plant, 1--1.5 mm diam., proliferating in humus or underneath palm leaf bases. Stems 0.5--1.5 cm, covered near apex with dense tuft of white to light brown, multicellular hairs to 7 mm. Trophophore blades green, shiny, to 45 × 30 cm, proximal margins diverging 90°--150° from stalk, with up to 7 rounded to mostly linear, acute lobes; venation complex-reticulate, very coarse, veinlets included in (usually elongate) very large major areoles to 35 × 8 mm, veinlets free or sometimes forming individual secondary areoles; blades firm, herbaceous. Trophophore stalk well defined, 1--2.5 times as long as trophophore blade. Sporophores single and central only on youngest or smallest leaves, normally to 10 per leaf, arising closely spaced from both sides of base of trophophore blade and top of stalk, sporangial clusters 1--7cm × 2.5--3 mm, apiculum absent.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
provided by eFloras
Fla.; Mexico; West Indies; Central America; South America; disjunct in Asia in s Vietnam; Africa in Madagascar, Seychelles, and Réunion.
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Habitat
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Evergreen. Among leaf bases on palmetto trunks [ Serenoa repens (Bartram) Small], mainly in hammocks and swamps; 0--50m.
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Synonym
provided by eFloras
Ophioglossum palmatum Linnaeus, Sp. Pl. 2: 1063. 1753
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Comprehensive Description
provided by North American Flora
Cheiroglossa palmata (ly.) Presl, Abh. Bohm. Ges
Wiss. V. 4 : 317. 1845.
Opkioglossum palmatum L. Sp. PI. 1062. 1753.
Rhizome 8-25 mm. long, 8-15 mm. thick, clothed with fine, pale, hairlike scales; leaves 20-30 cm. long, spreading and pendent, the commonstalk 6-20 cm. long, flattened, the lamina obdeltoid, 10-20 cm. long, 5-25 cm. broad, digitately divided often nearly to the base into 2-10 tapering lobes 2-22 cm. long, rarely simple ; venation reticulate, the major areolae elongate, angular, irregularly hexagonal, usually including several smaller areolae and an occasional free veinlet ; sporophyls 1-16 on each leaf, 1-7 cm. long, borne along the margins of the upper part of the commonstalk and the base of the lamina ; sporangia 8-60-jugate ; spores yellow, .045-.06 mm. thick, very finely pitted and verrucose.
Type locality : Santo Domingo.
Distribution : Kpiphytic ; from southeastern Florida throughout the West Indies to Mexico and Brazil.
- bibliographic citation
- 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
Cheiroglossa palmata: Brief Summary
provided by wikipedia EN
Cheiroglossa palmata, synonyms Ophioderma palmatum and Ophioglossum palmatum, variously known as hand fern, dwarf staghorn, or hand tongue, is an epiphytic or terrestrial fern. As an epiphyte it grows in old leaf bases of the cabbage palmetto (Sabal palm).
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