State Museum of Natural History. %5 



ostiolum, black ; spores filiform, curved or flexuous, .0008 in. to .0012 

 in. long. Dead stems of parsnip, Pastinaca sativa. Albany. May 

 It is related to such species as S. Brunandiana, S. nebula, etc. 



Septoria hedeomina, n. sp. Spots none; perithecia scattered, 

 minute, .003 in. to .004 in. broad, inconspicuous, black ; spores filiform, 

 strongly curved, hyaline, ,0012 in. to .0015 in. long. Dead stems and 

 calyces of pennyroyal, Hedeoma pulegioides. Sandlake. May. 



Septoria Gei, R. <£ D. Living leaves of Geum Virginianum. G-uil- 

 derland. July. 



Septoria Ostryse, n. sp. Spots small, suborbicular, reddish-brown ; 

 perithecia few, generally clustered in the center of the spot, brown or 

 blackish-brown ; spores linear, strongly curved, obscurely three or 

 four-septate, colorless, .0016 in. to .0024 in. long. Living leaves of 

 hop hornbeam, Ostrya Virginica. Helderberg mountains. July. 



Septoria lythrina, n. sp. Spots suborbicular or irregular, grayish- 

 brown, often surrounded by a narrow blackish border; perithecia 

 minute, epiphyllous, rarely amphigenous, blackish; spores filiform, 

 slightly curved, .0008 in. to .0016 in. long. Living leaves of spiked 

 loosestrife, Lytlirum Salicaria. Newburgh. July. 



Septoria increscens, n. sp. Spots at first small, then larger, brown 

 with an arid center ; perithecia minute, black ; spores filiform, curved 

 or flexuous, .0012 in. to .0016 in. long. Living leaves of star flower. 

 Trientcdis Americana. Charlton. July. After the leaves are attacked 

 by this fungus they turn yellow in patches and then brown. These 

 discolored places increase in size till the whole leaf is dead. 



Septoria atropurpurea, n. sp. Spots suborbicular, sometimes con- 

 fluent, purplish-brown above, often centrally mottled by small whitish 

 arid spots, paler below, purplish, with a brown or an ochraceous- 

 brown center ; perithecia few, tendrils white ; spores filiform, straight 

 or flexuous, ,002 in. to .003 in. long. Living leaves of the large-leaved 

 aster, Aster macroj)hyllus. Jamesvilie. Aug. The perithecia occur 

 both on the arid central dots and on the colored parts of the spots. 

 The peculiar character of the spots and the very long spores make 

 this a very distinct species. 



Septoria Aceris, B. & Br. Living leaves of sugar maple, Acer 

 saceharinum. Sandlake. Aug. In our specimens the spots are very 

 small, almost dot-like, arid, with a reddish-brown border and one to 

 four perithecia. The spores are three-septate and strongly curved, 

 but this difference is probably only varietal. 



Septoria Ludwigire, Che. Living leaves of water purslane, Lud- 

 wigia palustris. Charlton. July. In our specimens the spots have 

 a purplish border and the spores are without nucleoli. Dr. Curtis 

 long ago distributed specimens of this species under the name 

 Septoria Ludwigice B. & C, but so far as I know the characters of 

 the species were never published. 



Septoria Mori, Lev. Living leaves of white mulberry, Morus alba. 

 Charlton. July. 



Septoria Urticae, Desm. Living leaves of wood nettle, Laportea 

 Canadensis. Charlton. July. 



Septoria Cornicola, Desm. Living leaves of red osier and alternate- 

 leaved dogwood, Cor mis stolon if era and C. alternifolia. Jamesvilie 

 and Center. Aug. and Oct. 



[Assem. Doc. No. 127.] 4 



