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FOC | Family List | FOC Vol. 2-3 | Dryopteridaceae

11. Polystichum sect. Micropolystichum Tagawa, Acta Phytotax. Geobot. 9: 122. 1940.

小形耳蕨组 xiao xing er jue zu

Polystichum ser. Exgemmifera W. M. Chu & Z. R. He.

Plants small-sized. Lamina lanceolate, 1-pinnate. Pinnae deeply or shallowly pinnatifid. Pinnae ovate or oblong, indistinctly toothed, mucronate. Sori abaxial or terminal on veinlets. Indusia large, membranous, erose.

About six species: montane to alpine regions in Asia; six species (five endemic) in China.

1 Pinnae with clavate microscales on both surfaces.   46 P. zayuense
+ Pinnae without clavate microscales   (2)
2 (1) Pinnae often pinnatifid to lobed 1/2 distance to midrib   (3)
+ Pinnae often pinnatipartite to pinnatisect   (4)
3 (2) Stipe obviously shorter than lamina; lamina thickly papery; pinnae 25-45 pairs, approximate; mature sori distant from midrib.   50 P. setillosum
+ Stipe nearly as long as lamina; lamina papery; pinnae 10-16 pairs, distant from each other; mature sori next to midrib.   51 P. costularisorum
4 (2) Lamina acuminate; pinnae acute at apex.   47 P. jiucaipingense
+ Lamina acuminate or long caudate; pinnae acuminate at apex   (5)
5 (4) Lamina long caudate at apex; pinnae with linear brown microscales.   48 P. thomsonii
+ Lamina shortly acuminate or acute at apex; pinnae subglabrous on both surfaces.   49 P. longidens

Lower Taxa


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