586 Smi C Smith, Gilbert Morgan, 1885- Crytogamic botany. 2d. ed. New York, McGraw--Hill [c1955] 2t. ilus. 21cm (McGraw--Hill Pub., in the botanical sciences) Bibliografia al final de cada capitulo Contiene: t.1. Algae and fungi.--t.2. Bryopytes and pteridophytes.