2l6 ROCHESTER ACADEMY OF SCIENCE. 



356. Hypoderma ptarmicola Fairman, n. sp. 



Perithecia erumpent longitudinally, 1-4 mm. long, open when 

 fresh, when dry almost closed, margin entire, regular, but sometimes 

 curved, black externally, the interior reddish-brown to brown, and 

 becoming sub-olivaceous when dry ; asci clavate-cylindrical, narrowed 

 at the apex and tapering to a long filiform stipe, 74-125 x 10-13 /^» 

 (averaging 80-90 x 10 ^t/. ); sporidia oblong, straight or curved, 

 generally acutely pointed at one end, 33-35 x 2-3 /i, nucleate at each 

 end, and spuriously uniseptate from endochromatic division. (Plate 

 XX., Fig. 2). 



On dead stems of Achillea ptarmica^ lying on ground in garden, 

 Lyndon ville, N. Y., 1905. 



As a rule there are eight small nuclei in each end of the sporidium, 

 but it can not be said that this is a constant feature. The asci are 

 shaped like a tadpole. 



This can not be the Schizothyi'ium ptarmicce, common in Europe, 

 upon Achillea, nor Phacidhim ptar^nicce Schroter, which, sec. Feltgen, 

 Vorstudien, I. Theil, No. 381, page 128, is a synonym of Schizothyrium 

 pfarmictz Desmazieres, for this is said to have oval spores, 10 ij. in 

 diam., but may be the hysteriaceous representative found in this 

 country. 



357. Leptosphaeria physostegiae Fairman, n. sp. 

 Perithecia small, black, conical, erumpent, scattered or gregarious; 



asci oblong cylindrical, 80-85 x 10 iJ- ; sporidia overlapping uniseriate, 

 3-5 septate, slightly, or not at all constricted at the septa, light 

 brown, oblong fusoid, nucleolate, 20-26 x 6-7 «. 



On dead stems of Physostegia virginiana Benth., False Dragon- 

 head, cultivated, in garden, Lyndonville, N. Y., Sept., 1905. The 

 end cells are apt to be smaller and binuclear, and the middle cells 

 larger and mononuclear. 



358. Sporormia leguminosa Fairman, n. sp. 

 (Plate XXI., Figs, i, 2, 3, 4, 5.) 



Perithecia gregarious, elevating the surface of the pod into 

 sub-hemispherical pustules, which are concolorous with the pod, and 

 pierced at the summit by the ostiola, which vary from a sub-acute 

 to a broad sub-compressed form ; asci clavate-cylindrical, surrounded 

 by numerous interwoven filiform paraphyses, 140-150 x 15-16 // ; 

 sporidia brown, when young marked by light colored longitudinal 



