ENDOTHIA PARASITICA AND RELATED SPECIES. 3 
The present paper presents the results of several years’ field and 
laboratory study of the species of Endothia. This includes the study 
of practically all the herbarium material of this genus preserved in 
the principal herbaria of Europe and America; also field and lab- 
oratory studies of over 600 new collections from various localities 
and hosts in America, Europe, and Asia. Over 4,000 cultures have 
been studied and about the same number of inoculations made. 
These studies include the systematic relations of the species of 
Endothia and their physiological behavior on various culture media 
and under various conditions of light, moisture, and temperature; 
also inoculation experiments with the various species on various hosts. 
The writers wish to record here their grateful acknowledgment 
and thanks for opportunities to examine specimens and for assistance 
rendered by various mycologists and pathologists and directors and 
curators of botanical gardens and museums, especially the following: 
Prof. O. Comes, Naples; Prof. Romualdo Pirotta, Prof. Giuseppi 
Cuboni, and Drs. E. Pantanelli and L. Petri, Rome; Prof. P. Bac- 
carini, Florence; Prof. P. A. Saccardo, Padua; Dr. G. Briosi, Pavia; 
Dr. J. Briquet, Delessert Herbarium, Geneva; M. G. Beauverd, 
Boissier Herbarium, Geneva; Prof. L. Jost, Strasburg; Prof. W. 
Pfeffer, Leipzig; Dr. G. Lindau, Berlin; Dr. J. W. C. Goethart, 
Leiden; Prof. H. O. Juel, Upsala; Dr. P. Hariot, Paris; Sir David 
Prain, Kew; Dr. A. B. Rendle, British Museum; Prof. I. B. Balfour, 
Edinburgh; Prof. T. Petch, Peredeniya, Ceylon; Dr. C. Spegazzini, 
La Plata, Argentina; Dr. W. G. Farlow, Harvard University; Dr. 
W. A. Murrill, New York Botanical Garden; Mr. Stewardson Brown, 
Philadelphia Academy of Science; Dr. G. T. Moore, St. Louis 
Botanical Garden; Prof. E. Bethel, Denver, and Drs. G. P. Clinton, 
P. J. Anderson, and F. D. Heald. The writers have also received 
specimens and cultures from numerous other colleagues which have 
been of great assistance and are duly appreciated. 
.THE GENUS ENDOTHIA. 
The genus Endothia was established by Elias Fries in 1849 (33, 
pp. 385-386), as follows: 
é 
(X. Endothia. Fr.*) 
*Colore rubro fulvove, habitu Tuberculariae, peritheciis cellulosis difformi- 
bus pallidis, ascis diffiuentibus, facile distinctum -genus, nobis exoticum, sed 
jam in Europa australi obvium v. ¢. Sph. gyrosa Schw.—et subgenus, tuber- 
culo uniloculari, sistit S. Tubercularia Dec. Omnium horum generum char- 
acteres proxime plenius exhibeamus, examinatis multis speciebus exoticis. 
The description of the genus transcribed here was published as 
a footnote in the work cited and was evidently based on the specimens 
contained in Fries’s herbarium at the time the book was written. 
