Kepokt of the State Botanist. 139 



ACALYPTOSPORA POPULI, tl, Sp. 



Spots irregular or suborbicular, reddish-brown, definite; spores 

 epiphyllous, oblong-ovate or subfusiform, scarcely pedicellate, 

 colored, one to two-septate, -0008' — 0009' long, -0003' — 00033' 

 broad . 



Living leaves of the great-toothed poplar, Populus grandiden- 

 tata. Center. July. 



The fungus was found on the leaves of young trees. The 

 affected tissues soon break up and fall out. The spores appear to 

 form gummy patches or reticulations slightly darker than the 

 general color of the spot. 

 Macrosporium transversum, n. sp. 



Spots pale, at first greenish-yellow, then whitish and arid, some- 

 times with a reddish-brown border, forming transverse bands on 

 the leaf ; flocci tufted, subflexuous, septate, colored, -0016' — 0025 

 long, -00016' — 0002' broad; spores apical, oblong-ovate or 

 oblong-clavate, either obtuse at both ends or acuminate or sub- 

 rostrate at one end, three to five-septate, with here and there a 

 longitudinal septum, colored, -001' — 002' long. 



Living leaves of Oar ex strict a. West Albany. May. 



The discolored spots are often sterile. Frequently the leaves are 

 narrowed at the affected spots by the contraction of the tissues 

 arid are thereby weakened and abruptly bent. 

 Alternaria tenuis, Nees . 



Inner surface of old pods of silkweed, Aschpias Cornuti. 

 North Greenbush. November. 



In some specimens the rostrum of the spores is not dilated at 

 the apex as figured by Oorda, but as the two forms grow inter- 

 mingled in the same patch they are evidently all one species. The 

 spots, as I find them, are generally thinly effused and indefinite, 

 not definite as figured in "Fungi Italici." 

 Ellisiella caudata, Sacc. 



Dead leaves of broom-grass, Andropogon scoparius. Center. 

 May. 



This genus appears to me to be founded on very slight characters. 

 It scarcely differs from Colletotrichum, except in having the spores 

 longer pointed. 



BOTRYTIS CERATIOIDES, fl. sp. 



Flocci white, flaccid, suberect, obscurely septate, simple or 

 sparingly branched, obtuse and sometimes bilobed at the apex, 

 the upper part densely pulverulent with spores ; spores globose, 

 smooth, subochraceous or isabelline, • 00025' — 0003' in diameter. 



Decaying wood of hemlock, Abies Canadensis. Albany. June. 



