Patterson : New Species of Fungi 285 



Cladosporium fici 



Not forming spots : tufts conspicuous, aggregated, sometimes 

 confluent, olive green : hyphae long, erect, slightly wavy, very 

 rarely branched, septate, 45—250x4 ft : conidia light olive, termi- 

 nal and lateral, more especially borne near the tips of the hyphae, 

 oblong continuous ones 6—9x4/*, sometimes in chains of 4, those 

 1—3 septate, oblong-elliptical to cylindrical, 9-25x4-5 /A some- 

 what thickened at the septa and the longer ones often equilateral. 



On living leaves of Ficus parcelli, greenhouse, Department of 



Agriculture, January, 1900, F. W. P. 



Helminthosporium solitarium 



Sterile hyphae inconspicuous, generally subepidermal : fertile 

 hyphae, but slightly fasciculate, often solitary, erect, dark sooty 

 brown, septate, swollen at the base, the upper portion (about ^, 

 upon which the spores are borne) wavy or twisted, usually lighter 

 colored at the apex, 60-150 X 6/i; conidia dark brown, at first 

 2— 4-guttulate, then 3— 5 -septate, oblong-elliptical, sometimes 

 slightly curved, 24—30 x 8—9//. 



On leaves of Iris sp. affected with Fusarium iridis Oud., Min- 

 neapolis, Minn., October, 1898, J. M. Bates, no. 928. 



Heterosporium oxybaphi 



Sterile hyphae subcuticular : fertile hyphae erect, densely 

 fasciculate, fuscous olivaceous, simple, septate, coarsely nodulose, 

 90-125 x 6-7/*: conidia in short chains soon falling apart, fus- 

 cous-olivaceous, epispore echinulate, elliptical or ovoid, 1—2- rarely 

 3-septate, seldom constricted at the septa, 18-27 x 9-12/1. 



On dead stems of Oxybaplius angustif alius, Longpine, Ne- 

 braska, June 24, 1898, J. M. Bates, no. 821. 



Stemphylium butyri 



Hyphae decumbent, long, wavy, grayish black, closely sep- 

 tate, 3—4/* in diameter : fertile branches often very short : conidia 

 darker than hyphae, verrucose, constricted at the septa, very ir- 

 regular in shape, sometimes almost spherical, generally elliptical 

 or sub-pyriform, borne at the tip or sides of the branches, some- 

 times two or three connate and in clusters, 18-36 x 9-18 /i. 



Butter affected with this fungus assumes a bluish-black color 

 in isolated spots, and these gradually extend over the entire sur- 

 face. The specific description is written from an examination of 

 butter sent to the Division of Vegetable Physiology and Pathology 



