Microgramma heterophylla
Amer. Fern J. 54: 145. 1964.
Common names: Climbing vine fern
Illustrated
Basionym: Polypodium heterophyllum Linnaeus Sp. Pl. 2: 1083. 1753
Treatment appears in FNA Volume 2.
Revision as of 23:28, 29 July 2020 by imported>Volume Importer
Stems appressed to substrate, 0.5–1.2 mm diam.; scales reddish to dark-brown, linear-triangular. Leaves irregularly spaced. Petiole to ca. 2 cm. Blade 4–15 × ca. 1 cm, margins entire to undulate and ± shallowly crenulate, glabrous. Veins forming 1 series of linear polygonal costal areoles without free included veinlets, medial row of larger rectangular to polygonal areoles (usually with 1–2, simple or forked, free included veinlets), and a series of short, casually anastomosing marginal veinlets. Sori terminal on included veinlets; indument of few paraphyses longer than sporangia.
Habitat: Epiphytic on relatively smooth-barked trees, or growing on logs and rock, in tropical hammocks, substrate circumneutral to acidic
Elevation: 0 m
Distribution
Fla., West Indies
Discussion
Selected References
None.
Lower Taxa
None.
"narrower" is not a number.
... more about "Microgramma heterophylla"
3-celled +
free +
simple +
absent +
glabrous +
1 cm10 mm <br />0.01 m <br /> (?) +
Climbing vine fern +
polygonal +
green +
aboveground +
glabrous +
Epiphytic on relatively smooth-barked trees, or growing on logs and rock, in tropical hammocks, substrate circumneutral to acidic +
Present +
longer +
absent +
monomorphic +
spaced +
dimorphic +
often narrower and longer +
not narrowed +
circinate +
glabrous +
anastomosing +
longer +
absent +
articulate +
flattened +
Amer. Fern J. +
1964 +
reddish;dark-brown +
absent +
glabrous +
lacking +
linear-triangular +
discrete +
terminal +
round +
Illustrated +
monolete +
bilateral +
branched +
pruinose +
not whitish +
appressed +
long-creeping +
long +
few;numerous +
granulate +
complex +
Microgramma heterophylla +
Microgramma +
species +
anastomosing +
free +
obscure +
perennial +
terrestrial +