Download or read book Revision of Sorbus Subgenera Aria and Torminaria (Rosaceae-Maloideae) written by Juan J. Aldasoro and published by . This book was released on 2004 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taxonomic monograph; sections on morphology, chromosome numbers and hybrids, morphometric analysis, distribution, infrageneric classification; taxonomy (key, full synonymies and descriptions), biblioography.