Fairman : Ascomycetes from New Mexico 261 



Camarosporium compositarum (C. & H.) Sacc. 

 On old stems of Artemisia frigida Willd. (14726). 



Camarosporium Estrelti sp. nov. 



Pycnidia immersed, becoming erumpent and exposed in rifts of 

 the bark, flattened-globose, ostiola central and 40-50 /x broad, 

 surrounded at the base by brown mycelial threads, black, 200- 

 300 \x in diam. ; spores oblong-elliptic, often irregular in form, 

 abundant, 2-4-septate, slightly constricted, one or more of the 

 cells with longitudinal septa, brown, 12-18 X 6-8 /x, borne on 

 moderately long sporophores. 



On Isocoma heterophylla (Gray) Greene, Bueyeros, Sept., 1916, 

 Father A. Estrelt. 



Camarosporium patagonicum Speg. 

 On old stems of Atriplex canescens (Pursh) Nutt. (14715). 



Camarosporium yuccaesedum sp. nov. 



Pycnidia scattered or gregarious, subepidermal, becoming 

 erumpent-superficial, globose or conoid, black, at least 200 /x in 

 diam. ; spores numerous, variable in shape, globose, oblong-ellipitic 

 or flask-shaped, usually rounded at the ends, occasionally truncate 

 at one end, 3-5-septate, very slightly constricted at the septa, one 

 or more of the cells with a longitudinal septum, light-brown to 

 dark-brown, 20-30 X 10-17 fi, borne on stout, cylindric, hyaline 

 basidia. 



On dead leaves of Yucca baccata Torr. (135 17). 



Scolecosporae 

 Septoria gaurina E. & K. 



On Gaura induta Woot. & Standi. (145 19), on Gaura parvi- 

 flora, Dougl. not numbered. 



Septoria Helianthi E. & K. 

 On leaves of Helianthus annuus L. ( 14467 a) . 



