SCLEROTINIA 75 



On stems or seed pods. 



On Veratrtim califortiicum. 13. S. Veratri. 



On stems or seed-pods of Pedicular is. 14. S. coloradensis. 

 On bulbs, tubers or roots. 



On roots of Tragopogon and Daucus. 15. .S'. intermedia. 



On bulbs or tubers. 



On tubers of Pana.x. 16. S. Panacis. 



On bulbs of Tulip and Medicago. 17. .S'. saliva. 



I. Sclerotinia tuberosa (Hedw.) Fuckel, S\ml). M\c. 331. 1S6Q. 

 (Plate 90.) 



Octospora tuberosa Hedw. Descr. 2: 39. 1788. 



Peziza tuberosa Bull. Hist. Champ. Fr. 266. 1791. 



Macroscyphus tuberosus S. F. Gray, Nat. Arr. Brit. PI. 1: 672. 1821. 



Rutstroemia tuberosa Karst. Myc. Fenn. 1: 105. 1871. 



Phialea tuberosa Gill. Champ. Fr. Discom. 97. 1882. 



Hytnenoscypha ttiberosa Phill. Brit. Discom. 113, 1887. 



Sclerotia buried in the ground, forming irregular nodules 5-7 

 mm. in diameter, occasionalh' larger, externalh' black, internally 

 white, strongly convoluted when dr\'. 



Apothecia infundibuliform to cup-shaped, more or less ex- 

 panded at maturity', margin often inturned, pale umber-brown, 

 stipitate, 1 cm. or more in diameter; hymenium slightly darker 

 than the outside of the apothecium, even, or occasionally slightly 

 convoluted; stem slender, about 2 mm. in diameter, gradually 

 expanding into the cup above, and with the base more or less 

 swollen, reaching a length of several cm., usualh- one fruiting 

 body from each sclerotium but occasionally several ; asci cylindric- 

 clavate, reaching a length of 150 /x and a diameter of 8-10 n, 

 8-spored; spores ellipsoid, the ends slighth' narrowed, 6 X 12- 

 14 n; paraphyses filiform, the ends slighth' enlarged above, 3-4 /x 

 in diameter. 



On sclerotia buried in the ground, the stem of the apothecia 

 being long enough to reach the surface of the ground. 



Type locality : Europe. 



Distribution: New York to North Dakota and south to 

 Tennessee, probably distributed in North America; also in 

 Europe. 



Illustrations: Hedwig, Descr. 2: pi. JO, f. B; Bull. Herb. 

 Fr. pi. 485, f. 2-3; Rab. Krypt.-Fl. V: 802,/. 13; E. & P. Nat. 

 Pfl. V: 193,/. 156 K. 



European authors report this species as occurring on the 

 rhizomes of Anemone nemorosa. The writer has collected hun- 

 dreds of sclerotia and apothecia of this species in the suburbs of 



