Subject ASC00009n0
Recreative Science.
1, Page 156 (1860)
Natural History Museum Library, London
BHL Page 2539449
Keywords
microorganism microscopic view algae plant pond biology unicellular plant microscopic single-cell plant frond spores mature early zoo-spores beads botany ulva crispa z00-spores bead cell ulva crisps paling plant green beads round or oval grassy green color each bead is free sometimes two four or six short strings Ulva crispa porftion of frond in its mature state oscillatoria