Subject ASC0000cea
The Intellectual observer.
v.7 (1865), Page 32 (1865)
Harvard University, MCZ, Ernst Mayr Library
BHL Page 39464118
Keywords
ferns fern spores germination of fern spores Rev. F. Howlett dryopteris filis-mas prothallium Lastrea redurva archegonium antherozoid Dryopteris filix-mas Osmunda regalis antheridial cells chlorophyll fern spore germination fern spore germination cell cells antheridial archegonia filament cellular tissue swimming curled spiral botany microscopic microscopic view microcscopic view Fern spores antherozoids cryptograms Germination of fern spores spores Filix-mas enlarged Lestrea recurva plants