Tharp: Texas Parasitic Fungi 



115 



denticulate toward apices, somewhat attenuate, 50-90 X 4 n 

 (averaging 50-70X4/*); conidia obclavate, olivaceous, pluri- 

 septate, sometimes slightly curved, 45-95 X 4-5 fi (typically 60- 

 75X5^). (Has almost no points of similarity to C. rosicola 

 Pass.) 



On living leaves of Rosa sp., Gonzales, Texas, Sept. 29, 1916, 

 B. C. Tharp. 



Cercospora salviicola sp. nov. 



Amphigeous on whitish centered subcircular to angular brown 

 spots, 1-5 mm. in diameter, surrounded by a purplish zone which 

 fades into normal green, brighter above than below ; conidio- 

 phores amphigenous, tufted, 5-20 in each fascicle, brown at base 

 shading to subhyaline at apex, or brown throughout, sub- to 

 strongly geniculate, 1-2-septate, 30-85 X 4 averaging longer 

 below than above ; conidia hyaline, pluriseptate, straight or curved, 

 upward attenuate, abruptly truncate at base, 60-200 X 3-5 /*• 



On living leaves of Salvia farinacea L., Austin, Texas, Oct. 

 27-Nov. 27, 191 5, B. C. Tharp. 



Cercospora texensis sp. nov. 



Spots amphigenous, circular to subcircular, 1-6 mm. in diam- 

 eter, rather bright yellow-brown, sometimes zonate above, duller 

 brown below, surrounded by a yellow margin shading into normal 

 green ; conidiophores amphigenous, fasciculate surmounting a 

 tubercular base, brown at base, shading through lighter brown 

 into yellow, to subhyaline at tip, straight or slightly flexuous bear 

 ing conidial scars, apex truncate ; epiphyllous conidiophores 

 shorter (50-90X5/*) and in denser fascicles (10-25) than the 

 hypophyllous (2-6 in a fascicle and 100-140X5/*); conidia 

 hyaline, attenuate with truncate base, or sometimes subobclavate, 

 multi-septate, more or less curved, at maturity measuring some- 

 times 200 X 5 /*• 



On living leaves of Lupinus texensis Hook., Austin, Texas, Feb 

 22, 1916; also May 19, 1916, B. C. Tharp. 



Cercospora torae sp. nov. 



Spots appearing first as dirty-yellow circular blotches 5-8 mm. 

 in diameter, or by confluence covering entire leaflet, later having 

 centers of smoky-brown with advancing margins of dirty-yellow ; 

 conidiophores amphigenous, fasciculate, dense on both surfaces 



