Nueva revisión sintética de los géneros Hieracium y Pilosella en España

Nueva revisión sintética de los géneros Hieracium y Pilosella en España (synthetic review of the genera Hieracium and Pilosella in Spain), Iberian Botany Monographs Collection, No. 25, is the second monograph of two complex genera of the Compositae family ( Asteraceae ), Hieracium and Pilosella  in Spain. It presents dichotomous keys illustrated with photos of fresco sheets, as well as detailed descriptions, ecology, chorology and taxonomic and nomenclatural observations.

It has now been just over five years since the “ Monographic study on the genera Hieracium and Pilosella in Spain was published. The systematic approach in this earlier monograph was based largely on Zahn’s classification system. During the last decade there have been numerous new discoveries, often related to taxa which the authors conclude can no longer be treated as conventional species
They consider about a quarter of the existing taxa can be treated as species and the remainder treated as hybrids. They also provide a more synthetic treatment of the species, avoiding separating out entities that differ in a unique character and instead applying a subspecific range (subspecies or variety) to categorise them. Additionally nearly a hundred unpublished novelties have come to light in their analytical work.
The three factors combined: transition to treatment as hybrids for most species; passage to the subspecific rank of others; and appearance of numerous new proposals, result in a lot of nomenclatural changes to the original monoograph. The authors believe that users will find the current synthesis much more useful than the previous one, so have made the effort to re-synthesize and update the data in this new work.

Spanish language