TITLE:
Novelties in Campyloneurum (Polypodiaceae) from Mesoamerica
AUTHORS:
Alexander Francisco Rojas-Alvarado
KEYWORDS:
Campyloneurum amphostenon Complex, Campyloneurum angustifolium Complex, Campyloneurum xalapense, Lectotype Designed, New Species, Ferns, Species Recognized
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.8 No.4,
March
31,
2017
ABSTRACT: Three new species are described and another is
recognized in Campyloneurum. Two
species occur in Mexico to El Salvador and the others two are present in
Nicaragua, Costa Rica and Panama. The new species are Campyloneurum acutum A. Rojas, C. leoniae A. Rojas and C. madrense A. Rojas. The first species differs from C.
xalapense by broader rhizome scales, acute to attenuate blade apex,
commonly two series of areoles between parallel veins, commonly one sori per
areole and hydathodes absent or few evident. Campyloneurum leoniae differs from C. irregulare by more compact and non-pruinose rhizomes, thinner stipes, relatively
broader, thinner and more opaque laminae, and distribution at lower elevations. Campyloneurum madrense is different
to C. angustifolium because it has narrower and darker
rhizome scales with denticulate margin, long scales cells and distributed at
lower elevations. Finally, Campylonerum
pittieri is here recognized as valid species and it differs from the
similar C. amphostenon by longer rhizomes
with appressed scales that have a patent, long acuminate apices, relative
broader laminae, veins evident and distribution at higher elevations.