^ Explanation of Plates 377 



Plate 99 (P. 98) 



Upper figure (1). Midotis versiformis. Photographs of apothecia in 

 various stages of development, about natural size; also drawings of ascus with 

 spores and paraphysis. Photographs furnished by the Dominion National 

 Museum, Canada. 



Lower figure (2). Chlorociboria strobilina. Photographs of spruce 

 cone with apothecia, about natural size; also one scale removed with apothecia. 

 Upper right-hand corner, drawings of two apothecia, enlarged about two diam- 

 eters; also drawing of ascus with spores and paraphysis. Photographed from 

 material collected in Michigan by Dow V. Baxter. 



Plate 100 (P. 100) 



Kriegeria Seaveri. Photograph of type material collected in Montana by 

 J. R. Weir, somewhat enlarged. At the right, drawings of branches bearing 

 apothecia, much enlarged; also several apothecia removed. At the left, 

 drawing of ascus with spores and paraphyses. Below, two spores removed 

 from the ascus. 



Plate 101 (P. 102) 



Kriegeria enterochroma. Near center, photograph of branch, much en- 

 larged, showing apothecia. Below, drawings of apothecia removed. At the 

 left, drawing of an ascus with spores and paraphysis. At the right, drawings 

 of three spores removed from the ascus. Below, drawings of apothecia, much 

 enlarged. Photographed from material collected by H. S. Jackson in Ontario, 

 Canada. 



Plate 102 (P. 104) 



Kriegeria cedrina. Center, photograph of two branches of cedar with 

 apothecia, from material collected by F. A. Wolf in North Carolina. Below, 

 three apothecia, very much enlarged. Left, drawing of ascus with spores and 

 tips of paraphyses. Right, tip of ruptured ascus showing ascostome and below 

 two mature spores. 



Plate 103 (P. 108) 



Upper figure (1). Calycina holaris. Photographs of several apothecia, 

 about natural size. At the left, drawing of ascus with spores and paraphysis. 

 At the right, several spores. Photographs furnished by H. H. Whetzel. 



Lower figure (2). Calycina macrospora. Photograph of several apo- 

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

 Photograph furnished by the Dominion National Museum, Canada. 



Pl.\te 104 (P. 112) 



Upper figure (1). Helotium virgnUorum. Photographs of apothecia on 

 alder roots, about natural size. Lower right-hand corner, one apothecium en- 

 larged. Near center, drawing of ascus with spores and paraphysis. Above, 

 three isolated spores. 



Lower figure (2). Helotium citrinum. Photographs of dead wood with 

 the often confluent, apothecia, about natural size. At the left, drawing of 

 ascus with spores and paraphysis; also two isolated spores and one apothecium 

 enlarged. Photographed from materia! collected in Colorado by F. J. Seaver 

 and Paul F. Shope in 1929. 



