Explanation of Plates 381 



Plate 126 (P. 268) 

 Lachnella arida. Photograph of apothecia on coniferous trunk, about 

 natural size. Photograph by Paul F. Shope from fresh material in the field 

 at Middle Boulder Canon, Colorado, summer, 1929. Upper left-hand corner, 

 drawing of an ascus with spores and paraphysis. Lower left-hand corner, 

 drawing of portion of hairs from outside of apothecium. 



Plate 127 (P. 282) 



Diplocarpa Curreyana. Center, photograph of a group of apothecia, four 

 times enlarged. Above, drawings of two apothecia enlarged, also asci with 

 spores and paraphyses with their conidium-like apices. Below, two apothecia, 

 much enlarged, and hairs from the outside of the apothecium. 



Plate 128 (P. 284) 

 Upper figure (1). Lachnelhda chrysophthalma. Photographs of apo- 

 thecia from dried material collected in Wyoming during the summer meeting 

 of Botanical Society of America, 1929, about natural size. At the right, 

 drawing of ascus with spores and paraphysis; also portion of ascus. Near 

 center, drawing of poritions of hairs from apothecium. 



Lower figure (2). Lachnella bicolor. Photographs of Ruhus bearing 

 apothecia, both natural size and enlarged. At the left, drawings of ascus with 

 spores and paraphyses; also ascus showing pore. At the right, drawing of hair 

 from apothecium; also apothecium enlarged. Photographed from material 

 collected on Pikes Peak, Colorado by F. J. Seaver, Paul F. Shope and F. E. 

 Clements in 1929. 



Pl.\te 129 (P. 286) 



Arachnopeziza aurelia. Photograph of two acorns and a twig with apo- 

 thecia, about natural size and drawing of three apothecia, much enlarged. 

 Upper right, an ascus with spores and paraphyses, and portion of empty ascus. 

 Left, clump of hairs from apothecia. Below three spores. 



Plate 130 (P. 300) 

 Cenangium pruinosujn. Photograph of two clumps of apothecia, about 

 natural size. Below and above, drawings of apothecia greath' enlarged. 

 Left, ascus with spores and paraphysis and loose spores below. 



Plate 131 (P. 302) 

 Cenangium populneum. Photograph of several clumps of apothecia, 

 somewhat enlarged. Below, clump of apothecia bursting through the bark, 

 much enlarged. Above, one apothecium, much enlarged. Left, drawing of 

 ascus with spores and paraphysis. 



Pl.\te 132 (P. 308) 

 Sphaerangium tetrasporum. Center, photographs of branches with apo- 

 thecia, somewhat enlarged. Below, two apothecia, much enlarged. Left, 

 ascus with spores and paraphyses. Above, one spore, isolated, and branching 

 paraphyses. 



Plate 133 (P. 310) 

 Sphaerangium Tiliae. Center, photograph of portion of three branches, 

 about natural size. Above, one apothecium, much enlarged. Lett, drawing 

 of ascus with spores and paraphysis. 



