REPORT OF THE STATE BOTANIST FOR I924 75 



Leptosphaeria culmifraga (Fr.) Ces. & DeNot. 

 On dead culms of Phleum pratense L. Newcomb, Essex 

 county. H. D. House, June 21, 1923, Typical perithecia and 

 sporidia abundant, but near the joints of the host occur larger 

 perithecia with brown 6-septate sporidia. 



Leptosphaeria dumetorum Niessl. 

 On dead stems of Clematis virginiana L. Newcomb, 

 Essex county. H. D. House, June 22, 1923. 



Ophiobolus filisporus (C. & E.) Sacc. 

 On dead stems of Veratrum viride L., Peterboro, Madi- 

 son county. H. D. House, June 9, 1923. On dead stems of 

 Scrophularia lanceolata Pursh (S. leporella 

 Bicknell), Newcomb, Essex county. H. D. House, June 23, 1923. 



Pleospora herbarum (Pers.) Rabenh. 

 On dead stems of Lathyrus maritimus (L.) Bigel. 

 Woodville, Jefferson county. H. D. House, June 6, 1923. Typical 

 and in good fruit. 



var. Triglochinis Dearness & House, var. nov. 

 This interesting variety of a very common species departs from 

 the usual form in the following particulars : ostiola stronger ; asci 

 larger, the largest ones measuring 362 x 48 /x, and are more mucila- 

 ginous, the wall being 9 /x thick and at the tip up to 16 /x thick; 

 sporidia mostly 45-48 x 18-21 jx. in sheaths 6 fx thick: paraphyses 

 less abundant. 



On dead leaves of Triglochin palustris L. Bergen 

 swamp, Genesee county. C. H. Peck, June. These mucilaginous 

 structures in this species naturally swell and elongate by the absorp- 

 tion of water, but that fact does not invalidate comparisons with 

 typical forms of the species similarly treated. 



Pleospora scabra Mout.^* 



Material collected at Woodville, Jefferson county, on dead leaves 



and culms of Ammophila arenaria (L.) Link. H. D. 



House, June 21, 1922, is referred here with some hesitation. The 



paraphyses are long, and the sporidia are 37 x 12--14 /x, which with 



2* IV Not. Ascom. Nouv. in Bui. Soc. Bot. Belg. 48. 1900. 



