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22. Polystichum sect. Platylepia Li Bing Zhang
[sect. nov.]

宽轴鳞耳蕨组 kuan zhou lin er jue zu

Sectio nova Polysticho sect. Haplopolysticho similis, sed ab eo squamis rhachidis ovatis vel late lanceolatis differt.

Type: Polystichum yaanense Liang Zhang & Li Bing Zhang.

Plants medium-sized, evergreen. Lamina 1-pinnate, yellowish green, thinly papery or papery. Rachis without bulbils. Rachis scales ovate to broadly lanceolate. Pinnae oblong. Microscales linear, oblong, or narrowly ovate.

? About two species: SW China.

Polystichum sect. Basigemmifera, P. sect. Mastigopteris, and P. sect. Platylepia together have been resolved as a monophyletic group (Zhang & He, Syst. Bot. 36: 854-861. 2011).

1 Lamina lanceolate; pinnae stiff, nearly transparent when dry with veins visible adaxially, not cartilaginous on margin; microscales of pinnae subulate; sori indusiate.   159 P. yaanense
+ Lamina linear; pinnae soft, not transparent when dry with veins indistinct adaxially, slightly cartilaginous on margin; microscales of pinnae oblong to narrowly ovate; sori exindusiate.   160 P. loratum

Lower Taxa


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