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

19. Deparia sichuanensis (Z. R. Wang) Z. R. Wang
[comb. nov.]

四川对囊蕨 si chuan dui nang jue

Rhizomes erect, clothed with brownish, membranous, ovate-lanceolate scales at apices and stipe bases. Fronds caespitose; stipe stramineous or slightly chestnut-colored abaxially, much shorter than lamina, base densely scaly, upward scales sparse or nearly absent; lamina pinnate-pinnatipartite, elliptic to oblanceolate, gradually narrowed toward base, apex pinnatifid-acuminate; pinnae ascending or spreading, linear-lanceolate, deltoid-lanceolate, or oblong-lanceolate, base subtruncate, apex acuminate, pinnae separated, numerous pairs of lower pinnae gradually shortened, lanceolate, subopposite, basal pinnae often shortened as auricles; pinna segments oblong, obtuse-rounded or obtuse, truncate or rounded at apex, adnate to narrow wings of costae, ascending. Veins visible on surfaces, pinnate in segments, simple. Lamina herbaceous when dried, greenish brown, rachis and costae with somewhat dense, multicellular hairs abaxially, with multicellular hairs at sinus between segments, or subglabrous or sparsely hairy. Sori oblong or shortly linear, medial on veins; indusia glabrate or short hairs only on lower part of back, ciliate at margin, persistent. Spores bilateral, perispore surface with rugate-saccate, rugate, or papillate processes.

● Forests on mountain slopes, damp areas at streamsides; 1400-3500 m. Chongqing, S Gansu, Guizhou, Hubei, Sichuan, SE Xizang, Yunnan.

Deparia sichuanensis is similar to D. liangshanensis in shape but is distinguished by the lamina sparsely hairy on both surfaces, pinna segments without multicellular long hairs at margin, at most occasionally with 1 or 2 short hairs between teeth. This species is also similar to D. shennongensis but is distinguished by the multicellular hairs at the sinus between pinna segments, and rachis and costae with dense relatively long multicellular hairs abaxially.

1 Hairs on abaxial surface of rachis and costae thick and long.   19a var. sichuanensis
+ Hairs on abaxial surface of rachis and costae thin and short   (2)
2 (1) Pinnae deltoid-lanceolate, pinna segments 2-3 mm wide, truncate at apex.   19b var. gongshanensis
+ Pinnae oblong-lanceolate, pinna segments 4-6 mm wide, rounded at apex.   19c var. jinfoshanensis

Lower Taxa


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