TY - BOOK AU - Sporne,K.R. TI - The morphology of pteridophytes: the structure of ferns and allied plants T2 - Hutchinson university library : Biological sciences SN - 0091238609. U1 - 587.31 SPO/M PY - 1975/// CY - London PB - Hutchinson KW - Pteridophyta N1 - Includes index; Bibliography: p. [177]-185 ER -