Tracy and Earle : Some new Fungi 187 



This is related to A. Berenice (B. & C.) Sacc. on Magnolia 

 leaves but it is smaller in all of its parts and the spores are only 

 2 -septate. 



Plowrightia circumscissa sp. no v. 



Thickly scattered over large deadened areas ; stromata black, 

 buried in the leaf substance, at length exposed by the circumscissile 

 breaking away of the epidermis, irregularly oval or suborbicular, 



occasionally confluent, ^-i mm., ostioles punctate, three or four 



to eight or more in each stroma ; asci stipitate, aparaphysate, 

 thick-walled, about 60-80 x 16// ; ascospores subdistichous, ovate, 

 at length about equally uniseptate, hyaline, about 20 x 5 ft* 



On languishing leaves of some aloe [Agave sp. ?), Longboat 

 Key, Fla., April 26, 1900, S. M. Tracy, no. 6596. 



This is a striking species from the peculiar way in which the 

 innate fungus frees itself from the epidermis of the host. The dead 

 areas often involve the tips of the leaves but in other cases they 

 are lateral. 



Cercospora convolvuli sp. nov. 



Amphigenous, widely effused, forming large olivaceous areas, 

 without definite spots and only slightly discoloring the leaf; coni- 

 diophores cespitose in divergent clusters of 10 to 20 or more, not 

 tuberculate, brown, at first continuous, the lower half becoming 

 conspicuously septate at intervals of 4-8 ji, upper half continuous, 

 variously contorted and marked by conidial scars, about 40-50 x 

 5/* J conidia hyaline, clavate or subcylindric, usually curved, con- 

 tinuous or at length obscurely and sparingly septate, 60-100 x 



3-4/^. 



On leaves of Convolvulus acetosczfolia, Breton Island, La.^ 



Aug. 18, 1900, Tracy & Lloyd, no. 593. 



# 



Cercospora torta sp. nov. 



Hypophyllous, widely effused, discoloring the leaf above but 

 not forming definite spots ; conidiophores scattered, not fascicled, 

 lo ng and slender, nearly straight, frequently septate, when dry 

 flattened and seeming twisted at the septa, 60 ft or more long, 

 about 4 n wide ; conidia long, slender, subcylindric, at length 

 multiseptate, about 80 x 3 ft. 



On Cynocionum p-tiolata (Mitreold), Ocean Springs, Miss., 



Se Pt. 15 ; 1900, Tracy & Lloyd, no. 590. 



Passalora (?) melioloides sp. nov. 



Epiphyllous, forming black, velvety, orbicular patches 2-3 mm. 

 m diameter, or confluent over larger areas ; mycelium abundant, 



