Abstract
A synnematous species of Penicillium, P. calidicanium, is described and illustrated. The fungus was isolated from soil in Taiwan. Penicillium calidicanium can be placed in subgenus Biverticillium because of its symmetrical, biverticillate penicilli, ampulliform to acerose phialides, and ability to produce abundant synnemata in Czapek yeast extract agar, malt extract agar, and Czapek's solution agar. It is close to P. duclauxii and P. vulpinum, but differs in colony morphology, growth rate, morphology of the synnemata, and ornamentation of the conidial wall.
We are indebted to Dr. Y.M. Ju, Institute of Botany, Academia Sinica, Taipei, Taiwan, ROC, and Dr. Maren A. Klich, Southern Regional Research Center, USDA, New Orleans, USA, for critically reviewing the manuscript. We thank the National Science Council (NSC-86-2314-B-041-008) for funding this research.