FUNGI. 15 



length slightly collapsing above, about Jmm., ostiole mi- 

 nutely papillate, rather inconspicuous; asci cylindric, short 

 stiped, about lOOxlO/*; paraph yses very numerous, thread 

 like, exceeding the asci; ascospores monostichous, oval to 

 ovate, dark brown, at length 7-septate, with most of the cells 

 once or twice vertically divided, constricted at the middle 

 septum, ends often somewhat unequal, obtuse or subacute, 

 20-25x8/4. 



On old decorticated branches of Cercocarpus, at Hermosa 

 28 March. 



STRICKERIA FENDLER^E, n. sp. Perithecia scattered or 

 gregarious, black, shining, thin walled, collapsing to patel- 

 loid, 200-300/t; asci cylindric, thick walled, 80-100x20/1 ; 

 paraphyses thread like, abundant; ascospores distichous, 

 oblong, ends obtusely rounded, 4 septate, one or more 

 medial cells vertically divided, hyaline, at length very light 

 brown, 25-30x10^. 



On barkless weather-worn twigs of Fendlera rupicola, 

 Hermosa, 4 April. 



This species is well marked by the strongly collapsed 

 perithecia that look like a minute saucer-shaped Patellaria 

 and by the nearly hyaline spores. 



STRICKERIA POPULI, n.sp. Perithecia scattered, black, shin- 

 ing, the largest Jmm. in diameter, subglobose, at length 

 slightly collapsed or indented above, ostioles simply perforate; 

 asci about 80xl6/x,; ascospores monostichous, at first yellowish 

 and uniseptate, becoming brown and 3-septate, constricted 

 at each septum, one or both medial cells vertically divided, 

 ends obtuse, about 18-20x8-10. 



On decorticated, weathered twigs of Populus angustifolia, 

 Durango, 21 March ; n. 68. 



This is near S. insecura, but differs in the shining, par- 



