50 
Contribution to the Pyrenomycetes of Maine.—l, 
By F. L. Harvey. 
The following list of Pyrenomycetes is based upon collections 
made by the Rev. Joseph Blake, and in the Blake Herbarium at 
the Maine State College, or in lists of Maine Cryptogams turned 
over to the writer- by Mr. Blake before his death. To the above 
are added all the species, so far as known, that have been recorded 
from Maine in the literature upon fungi, together with such forms 
as have been detected by the writer since 1886. The list is of 
course incomplete, as each year several species have been added. 
It includes a few species not noted by Ellis from the United 
States, also several species not before reported from Maine. 
Additional references to Maine species by collectors will be 
gratefully received. 
We are under great obligations to Mr. J. B. Ellis and Mr. C. 
H. Peck for the examination of specimens. 
Family ERYSIPHEAE. 
1. Sphaerotheca Humuli (DC.). On Spiraea salicifolia L. and 
Humulus Lupulus, Orono (Harvey). 
2. S. Mors-uvae(Schw.). On species of Rides, Orono (Harvey). 
3. Exysiphe communis (Wallr.). Herb. Port. Soc. Nat. Hist. 
(Fuller), Cumberland (Blake). Hosts not stated. On /isum 
sativum, Orono (Harvey). 
4. £. Cichoracearum DC. On dandelion leaves (W. C. Ste- 
venson), as E. Montagnei Lev.; Harrison (Blake), as E. phlogts 
Schw. On various species of Compositae, Orono (Harvey). 
5. E. graminis DC. Common on lawn grasses in shaded 
places, Orono (Harvey). 
6. Uncinula Necator (Schw.). Very abundant on Delaware 
grapes, Orono (Harvey). i 
7. U. circinata C. & P. On Acer dasycarpum, Orono (Harvey). 
8. WV. Salicis (DC.). On Salix species. Very common, Orono 
(Harvey). ae 
9. Phyllactinia suffulta (Reb.). On Hamamelis Virginiana, — 
Celastrus scandens and Alnus serrulata. Very abundant, Orono = 
(Harvey). 3 
