EXPLANATION OF PLATES 

 (Continued from previous volume) 



Plate 75 

 (frontispiece) 

 Ciborinia bifrons. A branch of Popuhis tremuloides showing health}- and 

 infected leaves. Below, photograph of three sclerotia somewhat reduced; also 

 enlarged photographs of two sclerotia with apothecia. The enlarged photo- 

 graphs were made by Paul F. Shope from fresh material collected in Colorado. 



Plate 76 (P. 10) 

 Mitrula phalloides. Upper figure, habitat from leaves submerged in 

 water. Center, Ombrophila Clavus on oak leaf. Lower figure, several asco- 

 phores, about natural size. Photographs furnished by L. R. Hesler (in part). 



Plate 77 (P. 28) 



Trichoglossum velutipes. Photographs of a group of ascophores, about 

 natural size with drawings of an ascus with spores, tips of paraphyses and tip 

 of a ruptured ascus; also one of the setae from the ascophore. Photographed 

 from material collected in New Jersey by Mr. Fred R. Lewis. 



Plate 78 (P. 30) 

 Trichoglossum hirsutum. This is regarded as a capitate form of the above. 

 Photograph of a clump of sporophores, about natural size or slightly enlarged. 

 Drawings of an ascus with spores, the end of a ruptured ascus, the tip of a 

 paraph>'sis, one spore removed from the ascus and one of the setae. From 

 material collected near Arden, New York, by Fred R. Lewis. 



Plate 79 (P. 32) 



Trichoglossum Wn'ghtii. Photograph of ascophores from material col- 

 lected in Bermuda by H. H. Whetzel, F. J. Seaver, and L. Ogilvie, Jan. 1926, 

 about natural size, with drawings of portion of ascus with spores and tip of 

 seta. Setting improvised from Bermuda limestone and soil. 



Plate 80 (P. 34) 

 Trichoglossum Farlowii. Photograph of ascophores, about natural size, 

 with drawings of ascus with spores and paraphyses; also one of the setae. 

 Photographed from material collected during foray at Ithaca, August, 1931. 



Plate 81 (P. 36) 



ITppER FIGURE (1). Spathtilaria velutipes. Photograph of ascophores, 

 about natural size, with drawings of spores. 



Lower figure (2). Spathularia clavata. Photograph of ascophores, 

 about natural size, with drawings of ascus with spores and paraphysis. Photo- 

 graphs furnished by the Dominion National Museum, Canada. 



Plate 82 (P. 38) 



Upper figure (1). Leotia lubrica. Photographed from material collect- 

 ed in The New York Botanical Garden, about natural size, with drawings of 

 ascus, spores, and paraphysis. 



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