64 NORTH AMERICAN FLORA [VoLUME 6 
On LAMIACEAE: 
Collinsonia canadensis L., Ontario. 
TYPE LocaLity: London, Ontario, on Collinsonia canadensis. 
DISTRIBUTION: Known only from the type locality. 
249. Phyllosticta Delphinii Clements (Crypt. Form. Colo. 468, 
hyponym. 1908), sp. nov. 
Spots indefinite, dark-brown, reaching a diameter of more than 1 cm., about equally 
visible on either side of the leaf; pycnidia numerous, quite evenly scattered over the infected 
spot, mainly on the under side of the leaf, reaching a diameter of 150 »; spores numerous, 
rod-like, about 1 X 4p. 
On RANUNCULACEAE: 
Delphinium multiforum Rydb., Colorado. 
Type collected at Sulphur Springs, Colorado, on Delphinium multifiorum. 
DISTRIBUTION: Known only from the type locality. 
ExsiccaTiI: Clements, Crypt. Form. Colo. 468. 
250. Phyllosticta Arnicae (Fuckel) Sacc. Syll. Fung. 3: 45. 1884. 
Ascochyta Arnicae Fuckel, Jahrb. Nass. Ver. Nat. 29-30: 36. 1875. 
Spots irregular or indefinite in form, often marginal, dark reddish-brown, surrounded 
by a pale-yellowish or purplish area of considerable extent, the main spot often reaching a 
diameter of 1 cm. and the infected area often covering half of the leaf-surface, about equally 
visible on either side of the leaf; pycnidia numerous, thickly scattered over the main portion 
of the spot, reaching a diameter of 100-120 u; spores abundant, minute, rod-like, about 1 
xX 3-4 py. 
On CaRDUACEAE: 
Arnica cordifolia Hook., Colorado. 
TYPE LOCALITY: Europe, on Arnica montana. 
DistTRisuTIon: Colorado; also in Europe. 
Exsiccati: Clements, Crypt. Form. Colo. 467. 
251. Phyllosticta fragaricola Desmaz. & Roberge; Desmaz. PI. 
Crypt. II. 686. 1859.—Sacc. Michelia 1: 140. 1878. 
?Phoma obscurans Ellis & Ev. Proc. Acad. Phila. 1894: 357. 1894. 
Spots at first circular or subcircular, becoming irregular and often finally covering nearly 
half of the leaf-surface, at first reddish-purple, later becoming reddish-brown, the margin 
more or less indefinite and often surrounded by a yellowish area which gradually blends off 
into the healthy tissue of the leaf, paler on the under surface; pycnidia sparingly scattered 
over the infected spot, reaching a diameter of 100-110 uw; spores abundant, rod-like, 1-2 X 
4-5 ph. 
On ROSACEAE: 
Fragaria grandifiora Eurh., Ontario. 
Fragaria sp. (cultivated), New Jersey. 
TYPE LOCALITY: Europe, on Fragaria chiloensis, 
DIsTRIBUTION: Ontario to New Jersey (and West Virginia?) ; also in Europe. 
252. Phyllosticta Dearnessii Sacc. Ann. Myc. 11: 549. 1913. 
Spots indefinite and more or less irregular, whitish or cinereous in the center, grading 
off into reddish, finally brown, the brown color often extending around the margin of the 
leaf, reaching a diameter of nearly 1 cm., visible on both sides but less distinct on the under 
side; pycnidia scattered over the infected spot, mainly on the upper surface of the leaf, reach- 
ing a diameter of 150-1804; spores minute, rod-like, 1-1.5 X 4.5-5 p. 
On ROSACEAE: 
Rubus triflorus Richards., Ontario. 
Type LocaLity: Near Lake Huron, Ontario, on Rubus triflorus. 
DistTRIBUTION: Known only from the type locality. 
Exsiccati: Barth. Fungi Columb. 4653. 
