The Brazilian species of Elaphoglossum section Squamipedia (Dryopteridaceae)
A taxonomic treatment for the three species of Elaphoglossum sect. Squamipedia found in Brazil is presented. The section is monophyletic and most of its species are characterized by slender, 1–1.5 mm wide, long-creeping stems; the presence of two peg-like aerophores on the rhizome just behind each p...
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Published in | Brittonia Vol. 71; no. 3; pp. 225 - 234 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
15.09.2019
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | A taxonomic treatment for the three species of
Elaphoglossum
sect.
Squamipedia
found in Brazil is presented. The section is monophyletic and most of its species are characterized by slender, 1–1.5 mm wide, long-creeping stems; the presence of two peg-like aerophores on the rhizome just behind each petiole; pale brown stem scales; the absence of phyllopodia and hydathodes; and echinulate spores.
Elaphoglossum peltatum
is unique among the Brazilian species of the genus by having sterile leaves with divided laminae. Within the country,
E. minutum
is known from only two gatherings made in the state of Goiás, where it grows in gallery forests around 700 m.
Elaphoglossum peltatum
is found on the mountains of the northern Amazon and disjunctly in eastern Brazil, from 800 to 2000 m.
Elaphoglossum squamipes
occurs on the coastal mountains of Serra da Mantiqueira and Serra do Mar, where it grows in cloud forests above 800 m. None of the three species is endemic to Brazil. We provide identification keys, descriptions, synonyms, comments, line drawings, spore images, distribution maps, and an index of herbarium vouchers to all species accepted in this treatment. A lectotype is designated for
Acrostichum craspedariiforme
and a second-step lectotype for
Osmunda peltata
. Additionally,
E. ovatum
is here excluded from the Brazilian flora. |
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ISSN: | 0007-196X 1938-436X |
DOI: | 10.1007/s12228-019-09579-8 |