books.google.com - This volume outlines all of the phases of the gametophytic generation in ferns such as spore germination and sex organ initiation, from how the gametophyte grows to how it eventually initiates the sporophytic generation. The book discusses these stages in morphological, physiological, cytological and...http://books.google.com/books/about/Developmental_Biology_of_Fern_Gametophyt.html?id=C2Zb6lhIeScC&utm_source=gb-gplus-shareDevelopmental Biology of Fern Gametophytes
