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FOC | Family List | FOC Vol. 2-3 | Athyriaceae | Deparia

26. Deparia wilsonii (Christ) X. C. Zhang, Lycophytes Ferns China. 391. 2012.

峨山对囊蕨 e shan dui nang jue

Rhizomes erect, stout, densely scaly at apices and stipe bases; scales brown, broadly lanceolate to linear-lanceolate, membranous. Fronds caespitose; fertile fronds up to 1-1.5 m; stipe up to 50 cm, up to 6 mm in diam., base scaly, upward sparsely scaly; lamina pinnate, oblong to narrowly oblong, up to 100 × 30 cm, apex pinnatifid-acuminate; pinnae pinnatipartite, up to 30 pairs, lower pinnae slightly shortened; middle pinnae lanceolate or narrowly lanceolate, up to 20 × 3 cm, base broadened, subtruncate or broadly cuneate, pinnatipartite to wings of costa, apex long acuminate; pinna segments up to 25 pairs, approximate or distant, oblong or triangular, up to 10 × 5 mm, margin sparsely crenulate or subentire, or prominently toothed, apex ± rounded, subtruncate or obtuse-triangular. Veins visible, pinnate in segments, simple or forked. Lamina herbaceous or thickly herbaceous when dried, green, with short or long hairs on rachis and costae abaxially. Sori oblong to shortly linear; indusia pale brown, oblong to shortly linear, occasionally J-shaped or double, subentire at margin. Spores bilateral, perispore surface with dense rugate-saccate or papillate processes.

● Damp areas, forests on mountain slopes, streamsides, shrub groves, mixed forests, valley forests; 1400-3800 m. S Gansu, Guizhou, W Hubei, Sichuan, Xizang, NW Yunnan.

1 Pinna segments subentire or crenulate at margin.   26a var. wilsonii
+ Pinna segments prominently toothed at margin   (2)
2 (1) Pinnae narrowly triangular, or pinna segments obtuse-triangular; pinna segments with long teeth at margin; veins frequently forked, at least on basal segments of middle pinnae   (3)
+ Pinnae linear-lanceolate; pinna segments oblong, serrulate at margin; veins simple   (4)
3 (2) Pinnae narrowly triangular, gradually broadened to base; pinna segments oblong or narrowly ovate, approximate, toothed at margin; veins sometimes forked only in basal segments of middle pinnae.   26b var. incisoserrata
+ Pinnae lanceolate or oblanceolate, not gradually broadened to base; pinna segments obtuse-triangular, widely distant, with long teeth or lobed at margin; veins mostly 2-forked, occasionally 3-forked.   26c var. habaensis
4 (2) Plants 80-100 cm or more, hairs on abaxial surface of rachis and costae thin, short   26d var. maxima
+ Plants less than 80 cm, multicellular hairs on abaxial surface of rachis and costae thick, long.   26e var. muliensis

Lower Taxa


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