Genus: Cheilanthes Sw.
Cheilanthes acrostica
It can be distinguished from other Cheilanthes species within its range (Ch. maderensis, Ch. guanchica) by its fimbriated pseudoindusia and habitat (limestone).
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A great day doing a comprehensive Asplenium septentrionale count together with @NatResWales staff. Some positive site actions have already been done, and a good discussion on a management plan to look after this very special site. @FernBPS @fossilplants #FernFriday @cofnod
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Lycophyte transcriptomes reveal two whole-genome duplications in Lycopodiaceae: Insights into the polyploidization of Phlegmariurus http://dlvr.it/ST6kPf