Phlegmariurus


Phlegmariurus is a genus of lycophyte plants in the family Lycopodiaceae. The genus is recognized in the Pteridophyte Phylogeny Group classification of 2016, but not by some other sources, which keep it in a broadly defined Huperzia.

Taxonomy

The genus was first described in 1909 by Wilhelm Herter as the section Phlegmariurus of the genus Lycopodium. The section was elevated to a genus by Josef Ludwig Holub in 1964.
Within the family Lycopodiaceae, Phlegmariurus is placed in the subfamily Huperzioideae. A phylogenetic study in 2016, employing both molecular and morphological data, concluded that either a one-genus or a three-genus division of the subfamily produced monophyletic taxa. The authors preferred the three-genus division, recognizing Huperzia, Phlegmariurus and Phylloglossum. Their preferred hypothesis for the relationships of the three genera was:
The majority of the species formerly placed in a broadly defined Huperzia belong in Phlegmariurus. However, the genera are difficult to separate morphologically, and others have preferred the one-genus division of the subfamily.

Species

, the Checklist of Ferns and Lycophytes of the World accepted over 300 species: