Explanation of Plates 261 



Plate 18 (p. 188) 



Upper figure (1). Cookeina sulci pes. Photograph of several apothecia 

 on dead wood, showing variation in the length of the stem, from dried specimens 

 which shrink little in drying. Right, drawing of a portion of an ascus with 

 spores, showing characteristic striations. Also empty ascus showing eccentric 

 position of ascostome and operculum and the abrupt tail-like stem at the 

 base of the ascus. Near the center, a drawing of one of the fasciculate hairs 

 to be found about the margin of the cup. 



Lower figure (2). Cookeina Tricholoma. Photograph of a cluster of 

 apothecia on moss-covered bark, made from dried specimens which shrink 

 little in drying. Near the left, a cluster of apothecia showing the variation 

 in the length of the stem; also the conspicuous hairs which clothe the outside 

 of the cup. Left, a drawing of a portion of an ascus with spores, showing 

 characteristic striations. Right, drawing of tip of one of the long fasciculate 

 hairs from the outside of the apothecium. 



Plate 19 (p. 190) 



Upper figure (1). Pledania coccinea. Photograph of two apothecia 

 growing from a partially buried stick. Photograph by C, G. Lloyd. Left, 

 drawing of a portion of an ascus with spores. Upper right-hand corner, 

 drawing of hairs from the outside of the apothecium. 



Lower figure (2). Pledania hiemalis. Photograph of two apothecia, 

 showing long stems and crenate margins. Photograph by C. G. Lloyd. 

 Lower right-hand corner, drawing of a portion of an ascus with spores. Upper 

 left-hand corner, tip of ascus showing the eccentricity of the ascostome and 

 operculum. Near the center, two hairs from outside of the apothecium. 



Plate 20 (p. 192) 



Upper figure (1). Pledania floccosa. Cluster of apothecia, showing 

 long stems and densely hairy exteriors. Also a drawing of a portion of an 

 ascus with spores and the tip of one of the very long hairs from the outside of 

 the apothecium. 



Lower figure (2). Pledania occidentalis. Photographs of several apo- 

 thecia from dead sticks, showing the variation in the length of the stems and 

 the comparatively smooth exterior of the apothecia. Near the center, drawing 

 of a portion of an ascus with spores and a slender paraphysis. Lower right- 

 hand corner, drawing of hairs from exterior of cups. 



Plate 21 (p. 198) 



Urnula Craterium. Photograph of a cluster of apothecia from a partially 

 buried stick, with their notched margins. Photograph by C. G. Lloyd. 

 Right, drawing of a portion of an ascus with spores and tips of two paraphyses. 

 Upper left-hand corner, drawing of a portion of hair from exterior of cup. 

 Below, three isolated spores. 



Plate 22 (p. 200) 



Urnula Geaster. Photographs of several apothecia in different stages of 

 development, showing the Ceaster-WkQ method of dehiscence of the apothecia. 



