LEAF-SPOT OF ALFALFA AND RED CLOVER. 5 
HOST PLANTS. 
Although these fungi occur extensively in America on alfalfa and 
clover only, each of them has been reported in mycological literature 
on a number of related plants. 
The names of these host plants are shown in Table I.1 
Taste I.—List of host plants of Pseudopeziza trifolii and Pseudopeziza 
medicaginis. 
Hosts of Pseudopeziza trifolii. 
Hosts of Pseudopeziza medicaginis. 
Name of host plant. 
Trifolium: 
alpestre L ......--.- 
ALVENSE re cassie <5: 
eyathiferum Lindl .. 
fragiferum L 
hybridum L .......-. 
medigmyrls. -25-..=/- 
macrodon Hook and 
Arn. 
nigrescens Viv-..--- 
pallescens Schreb...- 
pratense L........-.- 
pallidum W. and K. 
Tepenspc ee i. 8 
resupinatum L.--... 
spadiceum L........ 
Authority cited. 
Name of host plant. 
Saccardo, D., 1903,n0.526, 
1319. 
Krieger, 1892, no. 781, 794. 
Blasdale, 1902. 
Massee, 1914. 
Bivona- Bernardi, 1816, 
ON ae ypl. 6, fig. 5. 
Saccardo, P. A., 1889, pp. 
723-724, 
Lambotte, 1880, p. 264. 
Blasdale, 1902, p. 75. 
Briosi, 1888. 
Massee, 1914. 
Saccardo, P. A., 
pp. 723-724. 
Maire, 1913, no. 119. 
Briosi, 1888. 
Massee, 1914. 
Saccardo, P: A., 1897, p. 
623. 
1889, 
Medicago: 
carstiensis Jacq...--- 
PNY, Wickasscsance 
hispida denticulata 
( Wild.) Urban. 
lupulina L....-.--..- 
lupulina wildenowii 
(Boenn.) Aschers. 
minima Link.......- 
prostrata Jacq...---- 
sativa L 
Melilotus alba Desv.-.-- 
Onobrychis sativa Link. 
Trigonella: 
coerulea (L.) Ser. ... 
corniculata L......-. 
foenum-graecum LL... 
Vicia villosa Roth....-.-. 
Authority cited. 
Saccardo, D., 
526, 1319. 
Cavara, 1892, p. 243. 
Massee, 1914. 
1903, no. 
Libert, 1832, fasc. 2, no. 
176 
Fuckel, 1870, p. 290, 236. 
Jaap, 1916. 
Desmazieres, pp. 
182-183. 
orecy vend Earle, 1895, 
p. 106. 
Berthault, 1913. 
1847, 
Mazerius, 1875, fase. 33, 
no. 1645. 
Jaap, 1916. 
Massee, 1914. 
Tracy and Warle, 1895, 
p. 106. 
THE FUNGI. 
SYNONOMY OF PSEUDOPEZIZA TRIFOLII. 
Pseudopeziza trifolii was first described by Antonio Bivona- 
Bernardi (1816, Mar. 4, p. 27, pl. 6, fig. 5) on Z'rifolium hybridum 
from Sicily under the name of Ascobolus trifolii. When Boudier 
(1869) revised the genus Ascobolus he listed this species among 
those which he believed should be excluded, and suggested that it 
be placed in the genus Phacidium. The following year Fuckel 
(1870) made this species the type of his new genus Pseudopeziza. 
Other early synonyms as given by Rehm (1892, p. 597-598) are 
as follows: Peziza trifoliorwm Libert, Trochilia trifolii DeNot., 
Molliscia trifolii Phill., Phyllachora trifolii Sace. 
The following three names have been included in the synonomy 
by Ivy Massee: Pseudopeziza (Phacidium) divergens (Desmaz.) 
Sacc.; Peziza dehnii Rab., a common parasite of Potentilla; Pyreno- 
peziza medicaginis ¥ckl. The last of these three species has already 
been shown by the writer (Jones, 1918) to be the ascigerous stage of 
1In compiling this host list, the fungus found on species of the genus Trifolium is 
regarded as Pseudopeziza trifolii (Biv.-Bern.) Wekl., while the fungus on species of the 
genus Medicago or closely related genera ‘is révarded as P. medicaginis (Uib.) Sace. 
Owing to the fact that the two fungi have frequently been regarded as one, the fungus 
on Medicago and its relatives has often been reported us P. trifolii. 
