Part 1, 1922] PHYLLOSTICTACEAE 27 
74. Phyllosticta Pyrorum Cooke, Grevillea 12: 26. 1883. 
Spots white, large, often occupying half or the whole of the surface of the leaf, with a 
purple margin; pycnidia black, scattered, prominent, occurring only on the upper side of 
the leaf; spores elongate, straight or curved, 2 X 10 nu. 
ON MALacEazE: 
Pyrus sp., South Carolina. 
Pyrus communis L,., Winois. 
TYPE LocaLity: South Carolina, on Pyrus sp. 
DISTRIBUTION: South Carolina and Illinois. 
Exsiccati: Rav. Fungi Am. 512. 
75. Phyllosticta Laurocerasi Sacc. & Speg.; Sacc. 
Michelia 1: 153. 1878. 
Spots irregular or obsolete, the infected area covering a large part of the leaf; pycnidia 
quite evenly distributed over the infected area, or occasionally congested, reaching a diam- 
eter of 250-300 », mostly on the upper side of the leaf but occasionally on both sides; spores 
ellipsoid or fusoid, 2-3 & 10 4. 
On AMYGDALACEAE: 
Laurocerasus Laurocerasus (1,.) Britton (Prunus Leurocerasus L,.) (cult.), California. 
TYPE LocaLity: Europe, on Prunus Laurocerasus. 
Distrisution: California; also in Europe. 
Exsiccati: Ellis & Ev. N. Am. Fungi 3055; Ellis & Ev. Fungi Columb. 275. 
76. Phyllosticta adianticola E. Young, Mycologia 7: 144. 1915. 
Spots ovate to ovate-cuneiform, often acute at the basal ends, reaching a diameter of 
4-12 mm., the outer portion ashy-gray with a yellowish-brown border; pycnidia few, occur- 
ring on the upper side of the leaf, brown, globose or subglobose, reaching a diameter of 75- 
120 », with a distinct ostiolum which reaches a diameter of 12 »; spores ovoid, hyaline, slightly 
pointed at one end, 2.5 X 5-7 u. 
‘ON POLYPODIACEAE: 
Adiantum ienerum Sw., Porto Rico. 
TYPE LOCALITY: Manati, Porto Rico, on Adiantum tenerum. 
DISTRIBUTION: Porto Rico. 
77. Phyllosticta Lilii Ellis & Dearness, Can. Rec. Sci. 
5: 267. 1893. 
Spots one to four or five on a leaf, subcircular in form or elongate, often becoming twice 
as long as broad, with a narrow, slightly raised border, reaching a diameter of 4 mm. to 1 em.; 
pycnidia sparingly scattered over the infected spot, conspicuous, occurring on the upper 
side of the leaf but visible on either side, reaching a diameter of 150-200 u; spores hyaline 
or sttbhyaline, 3 X 4-5 yp. 
Thought to represent the pycnidial stage of Leptosphaeria Lilit Ellis & Dearn., which 
occurs on similar spots on the same host. 
On LILIACEAE: 
Lilium superbum 1., Ontario. 
TyprE LocaLtity: London, Ontario, on Lilium superbum. 
DIsTRIBUTION: Known only from the type locality. 
78. Phyllosticta yuccaegena Ellis & Ev. Jour. Myc. 3: 130. 1887. 
Phyllosticta consimilis Ellis & Ev. N. Am. Phyllost. 70. 1900. 
Spots subcircular, irregular, or elongate, brown to brownish-black, surrounded by an 
elevated margin usually leaving the surface of the spot concave, the whole spot often thicker 
than the surrounding tissues of the leaf, similar in appearance on both sides of the leaf, reach- 
ing a diameter of 1 cm. and a length of 2-3 cm.; pycnidia thickly scattered over the spot or 
clustered near its center, immersed but rather conspicuous, reaching a diameter of 300-500 yu; 
spores ellipsoid, 1.5-2 X 3-5 » or rarely 3-4 X 5-7 p. 
