REPORT OF THE STATE BOTANIST I917 53 



Laestadia coptis (Schw.) E. & E. 

 (Sphaeria coptis Schw. Syn. Amer. Bor. n. 1783) 

 On languishing leaves of C o p t i s trifolia, near " Cohasset " 

 on Fourth lake, northern Herkimer county, H. D. Mouse, June 27, 

 igiy (with Septoria cop t id is B. & C. on same leaves). 

 Also collected at Sandlake, Rensselaer county, by Dr C. H. Peck, 

 May. 



Laestadia smilacinae Dearness & House, sp. nov. 



Perithecia black, globose-conic, thickly scattered over the whole 

 leaf or upon large parts of it, innate, erumpent through both 

 surfaces of the leaf, but chiefly through the lower surface, 90 to 

 100 /x.in diameter; stoma a pore, mostly bordered or stuffed with 

 whitish matter. Asci 20 to 30 in a perithecia, aparaphysate, cylin- 

 drical, 40 to 60 x 10 to 12 /1. Sporidia irregularly elliptical, con- 

 tinuous, grumous, 12 x 6 /t. 



On preceding season's leaves of Vagnera stellata. 

 Karner, Albany county. C. H. Peck, April. 



Rarely a spore is seen which is apparently septate and suggesting 

 Mycosphaerella, but the septation, if real, is so rare that the species 

 is placed in Laestadia. In this connection it might be noted that 

 Sphaeria polygonati Schw. on an allied host, might pos- 

 sibly be the same as this, but the description is so incomplete and 

 vague, that it is impossible to say whether it is the same as Laes- 

 tadia smilacinae or not. 



Leptosphaeria acuta (Moug. & Neestl.) Karst. 



On dead stems of Collinsonia canadensis. North 

 Greenbush. C. H. Peck, July. Sporidia yellowish brown, 30 to 40 

 x 4 to 5 ix. This species is described from Europe on dead stems 

 of Urtica, Vitalba and Solanum. 



Leptostromella chenopodii Dearness & House, sp. nov. 



Pycnidia pale yellowish brown, thickly scattered, mostly circular 

 and about .2 mm in diameter, occasionally elongate or irregular, 

 up to .5 mm by .2 mm. Ostiolum present and agreeing in shape with 

 the pycnidium, circular to elongate. When the pycnidia are numer- 

 ous the cuticle is generally raised and imparting to such areas of 

 the stem a pale or silvery color. Conidia long, narrow and hamate, 

 15 to 30 x 1.5 to 2 /x, on short narrow conidiophores. 



