# Morphological and genetic diversity of the fern genus Polystichum Roth (Dryopteridaceae) in New Zealand

> 2001 doctoral thesis by Leon Richard Perrie at Massey University

**Wikidata**: [Q111965296](https://www.wikidata.org/wiki/Q111965296)  
**Source**: https://4ort.xyz/entity/morphological-and-genetic-diversity-of-the-fern-genus-polystichum-roth-dryopteridaceae-in-new-zealand


## References

1. [Source](http://hdl.handle.net/10179/2105)