JOURNAL OF MYCOLOGY. 
Vol. IE. MANHATTAN, KANSAS, JUNE, 1887. No. 6. 
ENUMERATION AND DESCRIPTION OF THE 
SEPTORIAS OF NORTH AMERICA. 
BY GEORGE MARTIN, M. D. 
(Continued from page 53.) 
55. Septoria gossypina, Cke. Grev. XII, p. 25; Sylloge III, p. 
516 ; Rav. F. A., No. 509. 
Epiphyllous; spots white, irregular, border purple; perithecia 
punctiform, central, black, semi-innate, 180—150 y in diam.; sporules 
hyaline, linear, “50 x 1 yP On leaves of Gossypium. South Carolina. 
56. Septoria graminum, Desm. Grev. Ill, p. 10 ; Sylloge III, p. 
565 ; Ellis, N. A. F., No. 750. 
Spots pallid, narrow, elongated, limited by the nerves, often with a 
narrow brown margin ; perithecia brown, curved, obscure at first, then 
rupturing and leaving a concave disk, scattered, 150 y in diam.; sporules 
hyaline, linear, flexuous, entire, minutely nucleolate, 55—75 x 1—1.3 y. 
On Panicum sanguinale. New Jersey. 
57. Septoria Gratiol^e, E. & M. Journ. Mycol. I, p. 107. 
Perithecia punctiform, minute, emergent, scattered over the faded 
leaves, but not in definite spots; sporules filiform, nucleate, straight 
or somewhat curved, continuous, 30—40 x f—1 /'-. On fading leaves of 
Gratiola quadridentata. Florida. 
58. Septoria IIelianthi, E. & K. Am. Nat. XVTI, p. 1165; 
Ellis, N. A. F., No. 1134. 
Spots brown, 2—8 millim. broad, border yellowish ; perithecia brown, 
immersed, collapsing, epiphyllous, 150 y in diam.; sporules hyaline, 
linear, generally attenuated towards the ends, nucleolate, becoming 3-5- 
septate, 30—70 x 2—3 y. On Helianthus doronicoides. Kansas. 
59. Septoria Hosackije, Hark. Hull. Cal. Acad., February, 1884, 
p. 31; Sylloge III, 508. 
“Spots irregular, brownish yellow ; perithecia minute, amphigenous; 
sporules hyaline, filiform, flexuous, 3—7-septate, 64 x 4 On living 
leaves of Hosackia strigosa. California. 
