Atlas of British and Irish Hawkweeds (Pilosella Hill and Hieracium L.). 2nd rev. ed. 2018. illus.(b/w). Dot maps. 475 p. gr8vo. Paper bd.

As in the first edition, each species account has Latin and English names, distribution map at hectad resolution (pre- and post 1960 records are indicated by different symbols), representative silhouette, brief notes, list of vice-counties from which it has been recorded, and IUCN threat category. There is also a list of species accepted for each vice-county. The new edition has been formatted in a larger size than the original edition making the maps easier to read.

This second revised and augmented edition incorporates a significant number of records from field work and from additional herbaria. The bibliography gives publication details for the new or renamed species. Plants that with present taxonomic knowledge cannot be ascribed to species and share the characteristics of a basal rosette, cauline leaves 0-1(2), phyllaries with numerous to dense glandular hairs and without simple hairs are referred to informally as H.exotericum agg. No attempt has been made to map such plants, which are widespread. Hieracium species thought to no longer occur (extinct native or introduced species with no recent records) are relegated to Appendix 1, together with plants of uncertain occurrence. Appendix 2 is a new addition, with images of selected leaves of all species with blotched or spotted leaves, as this can be a short-cut to identification. Sell & Murrell's (2006) numbering has been retained for ease of cross-referencing, adding a letter for Hieracium jonesianum).