148 
Mycologia 
Oidiuni stage. These are listed here with Prof. Wilson’s sug- 
gestions as to the possible perithecial form. Since the present 
knowledge of the Erysiphaceae is not sufficient to warrant specific 
determinations of the relationships of Oidia, and the perithecia 
might prove the suggestions incorrect, the present determinations 
are, of course, only tentative. 
Erysiphe Polygoni?. On Oenothera procera Wooton & Stand- 
ley : Ponchuelo Creek, July 28, 1908, Standley 4585. On Pisum 
sativum L. ; White Mts., Aug. 15, 1908, Wooton. 
Erysiphe Cichoracearum?. On Grindelia aphanactis Rydb. : 
Dulce, Aug. 19, 1911, Standley 8081. On Verbena Macdougalii 
Heller: Pecos, Aug. 22, 1908, Standley 51^4. 
Uncertain. On Dugaldea Hoopesii (A. Gray) Rydb.: Chama, 
July 10, 1911, Standley 6’jp,g. On Hiimulus Lupulus neomexi- 
canus Nels. & Cockerell: Pecos, Aug. 25, 1908, Standley 530^. 
On Xinienesia exauriculata (Rob. & Greenm.) Rydb.: Mesilla 
Valley, Oct. 15, 1905, Wooton. 
Microsphaera Symphoricarpi E. C. Howe 
On Symphoricarpos rotundifolius A. Gray: Gilmore’s Ranch, 
.\ug. 14, 1897, Wooton. 
i 
Ohleriella neomexicana Earle 
The type was collected by Cockerell, Nov. 29, 1901, on “old 
whitened woody stems,” at Albuquerque. 
Phyllachora Dasylirii Peck 
Reported by Cockerell from Soledad Canyon, Organ Mts., on 
Dasylirion Wheeleri S. Wats. 
Phyllachora graminis (Pers.) Fuckel 
On Muhlenhergia neomexicana Vasey: San Andreas Mts., Oct. 
6, 1912, Wooton. 
Phyllachora Trifolii (Pers.) Fuckel 
On Trifolium repens L. : Pecos, Aug. 25, 1908, Standley 52gn. 
On Trifolium Eendleri Greene: Pecos, Aug. 19, 1908, Standley 
