A text-book of mycology and plant pathology . Fig 40.—Diagrammatic representation of the development of the ascogenoushyphal system and of the mature ascus. (After Claussen.) 128 MYCOLOGY. Fig. 41.—9, Vegetative hyphae giving rise to storage cell; 10, paraphyses grow-ing out from storage cells; 11-14, fusion of nuclei in storage cell; 15, 16, nucleus withtwo nucleoli in storage cell; 17, large storage cell with single very large nucleus; 18,storage cell with very irregularly shaped nucleus; 19, storage cell containing onelarge and two small nuclei; 20, an irregularly shaped storage cell; 21, 2
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A text-book of mycology and plant pathology . Fig 40.—Diagrammatic representation of the development of the ascogenoushyphal system and of the mature ascus. (After Claussen.) 128 MYCOLOGY. Fig. 41.—9, Vegetative hyphae giving rise to storage cell; 10, paraphyses grow-ing out from storage cells; 11-14, fusion of nuclei in storage cell; 15, 16, nucleus withtwo nucleoli in storage cell; 17, large storage cell with single very large nucleus; 18, storage cell with very irregularly shaped nucleus; 19, storage cell containing onelarge and two small nuclei; 20, an irregularly shaped storage cell; 21, 22, tip of as-cogenous hypha with two nuclei; 23, two nuclei in tip of hypha have divided to four;24, walls have come in, separating sister nuclei; 25, hook in which there is no wallcutting off uninucleate ultimate cell; 26, hook in which two nuclei have fused to HIGHER FUNGI 129 consisting of a binucleate penultimate and a uninucleate ultimate andantepenultimate cell. In this case, the two nuclei of the penultimatecell may fuse to form the nucleus of an ascus, or they may divide andgive rise to four nuclei of another hook. The uninucleate ultimatecell usually grows down and fuses