. Comparative morphology of Fungi. Fungi. 178 COMPARATIVE MORPHOLOGY OF FUNGI fundamentally belonging in Aspergillaceae are placed in Isaria until their natural position has been determined on the basis of their perithecia. These imperfect forms attain the highest development in the tropical genus Penicilliopsis of which two representatives, the Javan P. clavariaeformis (Solms-Laubach, 1886) and the Brazilian P. brasiliensis have been carefully investigated. If P. clavariaeformis is allowed to grow on a synthetic substrate, many undifferentiated hyphae after two days begin to cut off a long ch
. Comparative morphology of Fungi. Fungi. 178 COMPARATIVE MORPHOLOGY OF FUNGI fundamentally belonging in Aspergillaceae are placed in Isaria until their natural position has been determined on the basis of their perithecia. These imperfect forms attain the highest development in the tropical genus Penicilliopsis of which two representatives, the Javan P. clavariaeformis (Solms-Laubach, 1886) and the Brazilian P. brasiliensis have been carefully investigated. If P. clavariaeformis is allowed to grow on a synthetic substrate, many undifferentiated hyphae after two days begin to cut off a long chain of hyaline oval conidia (Fig. Ill, 1). In this respect they seem entirely like the conidial hyphae of Monascus. Later there appear on the mycelia true conidiophores (Fig. Ill, 3) whose form is intermediate between Penicillium and Aspergillus and is. Fig. 112.—Penicilliopsis clavariaeformis. Coremia on fruita of Diospyros macrophylla. reminiscent of Citromyces caeruleus and C. purpurescens. Their myce- lium is an intense yellow. Later they collect into massive, plecten- chymatous, antler-like coremia whose peripheral hyphae radiate perpendicularly to the outer surfaces and again degenerate to short stipitate conidiophores. They often swell capitately to a greater degree than is shown in Fig. Ill, 3 for the free conidiophores and then seem deceptively like Aspergillus. The appearance of these coremia on the natural substrate (Diospyros macrophylla) is shown in Fig. 112; in artificial culture they may grow to 20 cm. In P. brasiliensis they are verticillately branched and generally reminiscent of Araucaria. Conidia of the Aspergillus-Penicillium group are spherical or ovoid, smooth, rough or echinulate, hyaline or slightly colored. It is their. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gäumann, Erns
Size: 1475px × 1694px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublishern, booksubjectfungi
