familyDryopteridaceae
genusDeparia
Show Lower Taxa
Difference between revisions of "Deparia"
Icon. Filic. 2(8). 1829.
Etymology: Greek depas, saucer, referring to the saucerlike indusium of the type species, Deparia prolifera, which is aberrant in the genus
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>terrestrial. <b>Stems</b> creeping, stolons absent. <b>Leaves</b> monomorphic, dying back in winter. <b>Petiole</b> 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. <b>Blade</b> elliptic to ovate-lanceolate, 1-pinnate-pinnatifid [pinnatifid to 3-pinnate-pinnatifid], gradually reduced distally to pinnatifid apex, herbaceous. <b>Pinnae</b> 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. <b>Veins</b> free, simple or forked. <b>Sori</b> on veins, elongate, ± straight, or hooked at distal end; indusia linear, laterally attached, persistent. <b>Spores</b> brownish, broadly winged. <b>x</b> = 40.</span><!-- |
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|distribution=North America;e Asia;se and tropical Africa including Madagascar;Pacific Islands;Australia. | |distribution=North America;e Asia;se and tropical Africa including Madagascar;Pacific Islands;Australia. | ||
| − | |discussion=<p>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.</p><!-- | + | |discussion=<p>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, <i>Deparia</i>, and Dryoathyrium (Ching) M. Kato.</p><!-- |
| − | --><p>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).</p><!-- | + | --><p>Two American species, one native and the other introduced, are usually placed in <i>Athyrium</i> or <i>Diplazium</i>. The genus <i>Deparia</i>, 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).</p><!-- |
--><p>Species ca. 50 (2 in the flora).</p> | --><p>Species ca. 50 (2 in the flora).</p> | ||
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Latest revision as of 20:22, 5 November 2020
Plants terrestrial. Stems creeping, stolons absent. Leaves monomorphic, dying back in winter. Petiole 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. Blade elliptic to ovate-lanceolate, 1-pinnate-pinnatifid [pinnatifid to 3-pinnate-pinnatifid], gradually reduced distally to pinnatifid apex, herbaceous. Pinnae 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. Veins free, simple or forked. Sori on veins, elongate, ± straight, or hooked at distal end; indusia linear, laterally attached, persistent. Spores brownish, broadly winged. x = 40.
Distribution
North America, e Asia, se and tropical Africa including Madagascar, Pacific Islands, Australia.
Discussion
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).
Selected References
Lower Taxa
Key
| 1 | Leaves markedly narrowed to base; petiole bases swollen and dentate. | Deparia acrostichoides |
| 1 | Leaves not or only slightly narrowed to base; petiole bases neither markedly swollen nor dentate. | Deparia petersenii |