Deparia
false spleenwort
creeping, stolons absent.
monomorphic, dying back in winter.
1/3–2/3 length of blade, base swollen and persisting as trophopod over winter or not;
vascular bundles 2, lateral, lunate in cross section.
elliptic to ovate-lanceolate, 1-pinnate-pinnatifid [pinnatifid to 3-pinnate-pinnatifid], gradually reduced distally to pinnatifid apex, herbaceous.
not articulate to rachis, segment margins entire, crenulate, or serrate;
proximal pinnae (several pairs) reduced or not, sessile, equilateral;
costae adaxially shallowly grooved, grooves not continuous with that of rachis;
indument on rachis and costae (both sides) of multicellular hairs.
free, simple or forked.
on veins, elongate, ± straight, or hooked at distal end;
indusia linear, laterally attached, persistent.
brownish, broadly winged.
= 40.
Deparia
Petiole bases are swollen and toothed in sect. Lunathyrium (Koidzumi) M. Kato but not or only slightly thickened and without teeth in sects. Athyriopsis (Ching) M. Kato, Deparia, and Dryoathyrium (Ching) M. Kato.
Two American species, one native and the other introduced, are usually placed in Athyrium or Diplazium. The genus Deparia, however, including these two species, is sufficiently distinct to warrant generic separation because of its nondecurrent costal grooves and the presence of multicellular hairs on blades (M. Kato 1984).
Species ca. 50 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaves markedly narrowed to base; petiole bases swollen and dentate. | D. acrostichoides |
1. Leaves not or only slightly narrowed to base; petiole bases neither markedly swollen nor dentate. | D. petersenii |
WildflowerSearch
iNaturalist
USDA Plants Database
