+44 1803 865913
Claytonia (Portulacaceae) comprises 27 species, including 14 subspecies, of fibrous-rooted annuals as well as tuberous, stoloniferous, rhizomatous, and caudicose perennials, which are indigenous to eastern Asia and North America.
The biogeography and fossil history of Claytonia are reviewed and a preliminary phylogenetic re-construction is presented. Characters of leaf anatomy and morphology, underground parts, flowers, fruits, chromosomes, and biochemistry were included in the study.
Examination of 50,000 herbarium collections and numerous wild populations, as well as chromosomal, phytochemical, and greenhouse studies revealed the extent of interspecific and infraspecific variation. Evaluation of prior generic and infrageneric taxonomic treatments showed that the group is better treated as the single genus Claytonia. An extensive literature review and study of herbarium holdings permitted clarification of nomenclatural matters and typifications. Most species are fully illustrated and all are mapped. One new species (C. ozarkensis) is described, and two new combinations (C. multiscapa subsp. czukczorum, C. multiscapa subsp. pacifica) are proposed.
There are currently no reviews for this book. Be the first to review this book!
Your orders support book donation projects
We find their customer service to be excellent
Search and browse over 110,000 wildlife and science products
Multi-currency. Secure worldwide shipping
Wildlife, science and conservation since 1985