90 Wisconsin Academy of Sciences, Arts, and Letters. 



longer hyphae (ca. 50//,) have been observed bearing conidia 

 singly and laterally. On Lappula virginiana. Somers, Ra- 

 cine and Blue Mounds. While this fungus causes conspicuous 

 spotting of the leaves the conidia are inconspicuous and evan- 

 escent. I have had it under observation for a number of 

 years expecting at some time 1 to secure specimens with a more 

 profuse development of conidia. A specimen collected at Blue 

 Mounds, July 13, 1912, is taken as the type. A more recent col- 

 lection made at Potosi bears conidia up to 30//. in length. The 

 Wisconsin fungus seems to be closely allied to var. symphyti- 

 tuberosi, Allesch. (Hcdwigia, 1894, p. 73.) These specimens 

 differ from Hermodendron farinosum Bon. as figured (Bot. 

 Zeit., t. VIII, fig. 9) in the longer and narrower conidia and the 

 absence of the two guttulae in the lower members of the chain. 



During August and September, 1912, there was collected at 

 Madison on leaves of Ribes americanum a fungus of which the 

 following notes were made : ' ' Spots angular, limited by the vein- 

 lets, often confluent into irregular areas, brown, 2-5 mm. in di- 

 ameter; conidiophores hypophyllous in scattered tufts, closely 

 fasciculate from a prominent sclerotioid base, hyaline, often 

 toothed, 30-65x2-3//.; conidia terminal and lateral, hyaline, 

 cylindrical, abruptly acute or rounded at each end, occasionally 

 with a median septum, 20-50x3-4//.. The tufts usually have 

 more or less of a pink tinge. Large fasciculi have a marked 

 stilboid appearance. ' ' Leaves bearing the fungus were wintered 

 out of doors and the following May were found to bear heads of 

 conidia up to 250//. or more in diameter of a vinous purple color 

 with the conidiophores compacted into blackish stipes usque 150/z 

 high each springing from the summit of a plectenchymatous 

 pseudopycnidium. The conidia borne on these heads were hya- 

 line, catenulate, fusoid, continuous, 10-18x3-4//.. With these 

 were fasciculi, snow white to purplish, of the mucedine type and 

 occasional broader ones more tubercularioid in appearance. 



Accepting the coremium structure as the climax development 

 of this fungus I have labeled the specimens Graphiothecium 

 vinosum n. sp. and as it appears to be at least a facultative par- 

 asite have given it a place in this list. 



Ramularia calthae Lindr. Specimens having the follow- 

 ing characters have been referred to this species. Spots small, 



