ENpDOTHIA CANKER OF CHESTNUT 617 
Rankin, W. H. 
1912a The chestnut tree canker disease. Phytopath. 2:99. 
Abstract of paper read before the American Phytopathological Society, 
December, 1911. Reports the forcible discharge of ascospores, and the 
presence of the superficial pycnidia on wood. 
1912 b How further research may increase the efficiency of the control 
of the chestnut bark disease. Pennsylvania Chestnut Blight 
Conference. Stenographic rept., p. 46-48. Harrisburg, 1912. 
Calls attention to the importance of wind-blown ascospores; reports the 
closely related saprophytic form in Virginia and Pennsylvania. | 
1913 Some field experiments with the chestnut canker fungus. Phyto- 
path. 3:73. 
Abstract of paper read before the American Phytopathological Society, 
January, 1913. Inoculation experiments. Author finds that drought 
does not alter susceptibility of the tree. 
1914 Field studies on the Endothia canker of chestnuts in New York 
State. Phytopath. 4:—. (In press.) 
Records field experiments with regard to the life history of. the fungus 
and its distribution in New York State. 
Rehm, H. 
1907 Ascomycetes exs. Fasc. 39. Ann. myc. 5:210. 
Regards the chestnut fungus as one of the Hypocreaceae, and proposes 
the combination Valsonectria parasitica (Murrill) Rehm. 
Ruggles, A. G. 
1913 Notes on a chestnut-tree insect. Science 38:852. 
Discusses life history of the bark insect commonly known as the bast- 
miner and previously erroneously referred to by Metcalf and Collins (1911) 
as Agrilus bilineatus; believes this insect has an important bearing on the 
spread of Endothia parasitica. 
Shear, C. L. 
1912a The chestnut bark fungus, Diaporthe parasitica. Phytopath. 
2:88-89. 
Reports that Endothia radicalis (Schw.) and Diaporthe parasitica Murr. 
are distinct. 
1912 b The chestnut blight fungus. Phytopath. 2:211-212. 
States that the European Endothia radicalis is identical with Diaporthe 
parasitica Murr., and that it was probably introduced into America from 
Europe. . . 
1913 a Endothia radicalis (Schw.). Phytopath. 3:61. 
Author retracts his former statement, and now believes that E. radicalis 
(Schw.) is not the linear-spored form but the narrowly-oval-spored form, 
E. virginiana Anders.; does not now believe that the blight fungus was 
introduced from Europe. 
1913 b The type of Sphaeria radicalis Schw. Phytopath. 3:191-192. 
Examines Fries’s type specimen of S. radicalis, and decides that it is 
identical with the form called E. gyrosa by Clinton and E. virginiana by 
the Andersons. 
Shear, C. L., and Stevens, N. E. 
1913 a Cultural characters of the chestnut-blight fungus and its near 
relatives. U.S. Plant Indus. Bur. Circ. 131:3-18. 
Describe in detail cultural studies of all the American species of Endothia, 
and consider E. parasitica as a distinct species. 
1913 b The chestnut-blight parasite (Endothia parasitica) from China. 
Science 38: 295-297. 
Give meet 23 inoculation experiments proving that the fungus col- 
lected in China is identical with Endothia parasitica. 
