80 The North American Cup-Fungi 



Type locality: Mt. Pleasant, Iowa. 

 Distribution : Known only from the type locality. 

 This species was collected in the spring of 1906. So far as 

 we know it has not been reported from any other place. 



9. Sclerotinia nyssaegena (Ellis) Rehm, Ann. Myc. 4; 338. 

 1906. 



Peziza nyssaegena Ellis, Bull. Torrey Club 8: 73. 1881. 



Ciboria nyssaegena Sacc. Syll. Fung. 8: 207. 1889. 



Helotium nyssaegenum Sacc. Syll. Fung. 8: 207. 1889. (as synonym) 



Apothecia arising singly, gregarious, or cespitose, concave, 

 becoming nearly plane, pale-yellow to yellowish-brown, reaching 

 a diameter of 3-5 mm.; hymenium concave, or becoming nearly 

 plane, similar in color on the outside of the apothecium; stem 

 very variable in length but often reaching 1-2 cm., about 1 mm. 

 in thickness, often branched, usually imbedded in soil; asci 

 clavate, reaching a length 100-1 10 m and a diameter of 6-8 /i 

 at their apices; spores partially 2-seriate, or irregularly crowded, 

 fusoid, narrowed toward the base, 3-4 X 12-14 ju; paraphyses 

 slender, reaching a diameter of 1-2 n. 



On seeds of Nyssa sylvatica, buried under dead leaves. 



Type locality: Newfield, New Jersey. 



Distribution : New Jersey, Pennsylvania and New York. 



Exsiccati: Ellis, N. Am. Fungi 389. 



A small collection of this species was obtained by the author 

 in The New York Botanical Garden, September, 1930, growing 

 with Helotium nyssicola from which it differs in size, color and in 

 its spore measurements. 



10. Sclerotinia Camelliae Hansen «& Thomas, Phytopathology 

 30: 170. 1940. 



Sclerotia dark-brown to black, usually compound, impreg- 

 nating and surrounding the petal tissue, variable in form, reach- 

 ing a size of 12 X 30 mm.; conidia none; microconidia globose to 

 pyriform, 2.5-3.5 n in diameter, produced in long chains on 

 conidiophores which are produced in clusters. 



Apothecia occurring singly or in groups, buff-olive, becoming 

 darker with age, scantily pubescent, cyathiform to discoid, 

 reaching a diameter of 5 20 mm.; stem 2-3 mm. thick and 

 reaching an extreme length of 40 mm., tapering below; asci 



