194 
Journal of Agricultural Research 
Vol. XI ,No. s 
In Table I in the middle column are listed those species mentioned in the 
literature cited in this paper. The names used at the present time are 
given in the first column. Some qf the forms can not be definitely 
assigned to species now known, since the citations were not definite 
enough in the original articles. To this list is also added the species 
causing the rings described in this paper, and a few of the fungi causing 
rings in the vicinity of Washington, D. C., noted by Miss Vera K. Charles, 
Assistant Mycologist of the Bureau of Plant Industry. 1 
Table I. —List of fungi reported as causes of fairy rings and the names of the investigators 
identified Fungi 
Species. 
Name used by author. 
Investigators. 
Agaricus arvensis Schaeff. . . 
Do. 
Agaricus arvensis . 
Agaricus {Psallioia ) arven- 
Buckman (1870) Atkinson 
(1900). 
Lees (1869). 
sis. 
Psalliota arvensis Sch 
Do... 
Agaricus tabularis Peck 
Agaricus campestris L. . 
Do. 
Agaricus sp. 
Amanita muscaria L. . 
Amanita phalloides Fr 
Boletopsis cavipes (Opat.) 
Henn. 
Boletus bovinus L. 
Boletus elegans Schum. 
Boletus variegatus Swartz. . . 
Calvatia cyathiformis Bose 
Calvatiafragilis Vitt 
Calvatia polygonia Lloyd 
Cantharellus aurantiacus 
(Wulf.) Fr. 
Cantharellus cibarius Fr. 
Cantharellus cinerus Fr. 
Catastoma subterraneum (Pk.) 
Morg. 
Clavaria sp. 
Clitocybe geotropa Fr. 
Do. 
Clitocybe gigantea Sow...... 
Do. 
Do. 
Clitocybe infundibuliformis 
Fr. 
Do. 
Agaricus campestris 
Psalliota campestris 
Agaricus sp. 
Amanita muscaria. 
Amanita phalloides 
Boletus cavipes. . .. 
Boletus bovinus .... 
Boletus elegans 
Boletus variegatus ., 
Cantharellus cibarius 
Cantharellus cinereus 
Clavaria sp. 
Agaricus geotropus Bull... 
Agaricus (Clitocybe) geotro- 
pus Bull. 
Clitocybe gigantea . 
Agaricus giganteus . 
Agaricus {Clitocybe) gigan¬ 
teus Sow. 
Agaricus infundibuliformis 
Sch. 
Agaricus {Clitocybe) infund¬ 
ibuliformis Sch. 
Ballion (1906). 
Shantz and Piemeisel. 
Wollaston (1807), Jorden 
(1862), Shantz and Pie¬ 
meisel. 
Van Tieghem* (1884, p. 
1044-1045), Ritzema Bos 
(1901), Massart (1910). 
Olivier (1891). 
Ludwig (1906). 
Do. 
Do. 
Ballion (1906). 
Ludwig (1906). 
Do. 
Shantz and Piemeisel. 
Do. 
Do. 
Ludwig (1906). 
Lees (1869). 
Ludwig (1906). 
Shantz and Piemeisel. 
Munch (1914). 
Lees (1869). 
Do. 
Bayliss (1911). 
Jorden (1862), Van Tie¬ 
ghem (1884), Ritzema 
Bos (1901). 
Lees (1869). 
Do. 
Do. 
Cantharellus aurantiacus .. . 
1 In the systematic portion of this work the writers are indebted to Mrs. Flora W. Patterson, mycologist 
in charge of pathological collections, for many suggestions; to Miss Charles for identification and additions 
to the list of fungi causing fairy rings; to Prof. W. G. Farlow, of Harvard University, for the identifica¬ 
tion of Agaricus tabularis, and to Prof. C. G. Lloyd, of Cincinnati, Ohio (see 1916), for the identification 
of Calvatia polygonia. 
