Monographs Details:
Authority:
Mickel, John T. & Beitel, Joseph M. 1988. Pteridophyte Flora of Oaxaca, Mexico. Mem. New York Bot. Gard. 46: 1-580.
Mickel, John T. & Beitel, Joseph M. 1988. Pteridophyte Flora of Oaxaca, Mexico. Mem. New York Bot. Gard. 46: 1-580.
Family:
Dryopteridaceae
Dryopteridaceae
Description:
Species Description - Rhizome short-creeping to erect, to 12 mm diam.; rhizome scales linear, reddish-orange, to 13 mm long, with short teeth; phyllopodia inconspicuous or lacking; fronds clumped, 13-30 cm long, 1.9-4.8 cm wide; stipe 2/5-3/5 the frond length, with scales large, light orange with many small teeth, to 6 mm long, spreading; blade narrowly elliptic, or ovate-lanceolate, subcoriaceous, apex obtuse, base broadly cuneate to rounded; veins inconspicuous, free, simple or once-forked, ca. 1 mm apart, at ca. 60° angle; hydathodes lacking; blade scales of upper surface white, or with slightly darker centers, peltate, ovate-lanceolate, long-toothed, abundant, on lower surface longer, darker orange, less peltate; fertile fronds as long as the sterile fronds, but with smaller blade and longer stipe (ca. 1/3 the fertile frond length), scales sparse, small and inconspicuous among the sporangia; spores sparsely covered with short tubercles.
Species Description - Rhizome short-creeping to erect, to 12 mm diam.; rhizome scales linear, reddish-orange, to 13 mm long, with short teeth; phyllopodia inconspicuous or lacking; fronds clumped, 13-30 cm long, 1.9-4.8 cm wide; stipe 2/5-3/5 the frond length, with scales large, light orange with many small teeth, to 6 mm long, spreading; blade narrowly elliptic, or ovate-lanceolate, subcoriaceous, apex obtuse, base broadly cuneate to rounded; veins inconspicuous, free, simple or once-forked, ca. 1 mm apart, at ca. 60° angle; hydathodes lacking; blade scales of upper surface white, or with slightly darker centers, peltate, ovate-lanceolate, long-toothed, abundant, on lower surface longer, darker orange, less peltate; fertile fronds as long as the sterile fronds, but with smaller blade and longer stipe (ca. 1/3 the fertile frond length), scales sparse, small and inconspicuous among the sporangia; spores sparsely covered with short tubercles.
Discussion:
Acrostichum muscosum Swartz, Prodr. veg. ind. occ. 128. 1788. Type. Jamaica. Swartz s.n. (S). Elaphoglossum hookerianum Underwood ex Maxon, Contr. U.S. Natl. Herb. 13: 6. 1909. Type. Guatemala. Alta Verapaz: Cobán, Türckheim II. 1862 (NY!). Elaphoglossum muscosum belongs to a very distinct group of a few species that is distinguished by the blade shape, the densely clothed blade and stipe, and the spore morphology. This species is distinguished from E. engelii by the inconspicuous scales among the sporangia, the less toothed rhizome and stipe scales, the more compact rhizome habit, and lower elevation.
Acrostichum muscosum Swartz, Prodr. veg. ind. occ. 128. 1788. Type. Jamaica. Swartz s.n. (S). Elaphoglossum hookerianum Underwood ex Maxon, Contr. U.S. Natl. Herb. 13: 6. 1909. Type. Guatemala. Alta Verapaz: Cobán, Türckheim II. 1862 (NY!). Elaphoglossum muscosum belongs to a very distinct group of a few species that is distinguished by the blade shape, the densely clothed blade and stipe, and the spore morphology. This species is distinguished from E. engelii by the inconspicuous scales among the sporangia, the less toothed rhizome and stipe scales, the more compact rhizome habit, and lower elevation.
Distribution:
Mexico North America| Colombia South America| West Indies| Panama Central America| Guatemala Central America|
Mexico North America| Colombia South America| West Indies| Panama Central America| Guatemala Central America|