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This manual was designed to facilitate identification of penicillia and to present a summary of data regarding the physiology, biochemistry, pathogenicity and other characteristics of individual species and groups. The authors only recognize 137 species of Penicillium, of more than 700 which have been described, on the premises that species selected for recognition should be presented in tangible, specific and reproducible terms and that the number of species was too large and should be reduced.
The major portion of the manual is devoted to the morphologic and cultural characteristics of the various species of penicillia, supplemented with many excellent photographs, drawings and color plates. A topical bibliography, which covers the principal activities and applications of the penicillia to agricultural, industrial and academic pursuits, is included in addition to the excellent general bibliography.
The manual was prepared under joint sponsorship and support of the National Science Fund and the Northern Regional
A Manual of the Penicillia. JAMA. 1950;142(3):216. doi:10.1001/jama.1950.02910210072035
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