Download or read book Pollen and Spore Morphology, Plant Taxonomy written by Gunnar Erdtman and published by . This book was released on 1971 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spore morphology. descriptions of the genera (Acrophorys-Xiphopteris). Ultrastructural aspects of sporoderm formation in pteridophytes. The fine structure of some pteridophyte spores before and during germination.