V1J1 CONTENTS 



PAGE 



Puccinia graminis (Wheat rust) I3 o 



Isoetes (Quillwort) I34 



Equisetum (Horsetail) I4 o 



Lycopodium (Club-moss) I44 



Selaginella (Little club-moss) I47 



Zamia floridana (A cycad) !53 



Pinus laricio (Austrian pine) ^i 



Trillium (Wake-robin) I 



