Jakob E. Lange: Studies in the Agarics of Denmark. III. 33 



b) numerous, inflated, roundish. On the face of the gills are 

 numerous cystidia of the former kind. Contents of cystidia 

 brownish. 



Fig. specim. : Hjallese, moist foliaceous copsewood, Aug. 1902. 

 Common in similar localities. 



In the young plant the upper portion of the stem is (inside 

 and outside) violet-blue The edge of the gills is brown (from 

 the cystidia), the sides pallid (but not bluish). Figured very well 

 by Bresadola (loc. cit. tab. 51 2 ). The plant figured by Cooke 

 (1. c. tab. 425), with nodulose spores, does not belong here. 



8. I. obscura (Pers.). 



Spores obliquely ovate (narrower towards apex), 1 l i' 2 ~ 9 x 4 ! /2 — 5 u. 

 Cystidia brown, inflated, of variable shape. 



Fig. specim.: Bederslev Dale, in wood of Picea, aggregate, July 

 1898. — Not rare in similar localities. 



This species differs from the preceding one in being larger 

 (cap 2 — 3 cm) and more robust. The surface is tomentose- 

 squamulose, disc subsquarrose but not set with erect, pointed 

 squamules like I. cincinnata. The flesh is whitish (in apex of 

 stem occasionally slightly flushed with violet) tasteless and with 

 a faint disagreeable smell. The cap is fuscous-umber, never 

 violet. For this and other reasons I formerly referred this plant 

 to /. dulcamara forma aestivalis, with the description of which 

 (by Fries) it fairly well agrees. But as Ag. dulcamarus Alb. & 

 Schw. — whatever that name was originally intended to repre- 

 sent — is now generally used for a plant very different from 

 mine, I follow most modern authors in using the name I. obscura. 



9. I. griseo-lilacina n. sp. (Plate III, fig. 4). 



Spores somewhat obliquely ovate-ellipsoid, 9 x 5 u. Cystidia in- 

 flated, of variable shape (hyaline). 



Fig. specim.: Stensballe near Horsens, growing gregariously 

 on leafmouldy ground in wood of Fagus, Aug. 1909. Found se- 

 veral times in similar localities in Fyn (1910—16). 



Pileo 2 cm lato, pallide brunneo, margine griseo-lilacino, primitus 

 tomentoso, dein lacerato-sqnamuloso , marginem versus fibrilloso et 

 sub- fimbriate-. Stipite A — 7 cm x 3 mm, farcto, intus extusque pallide 

 lilacino, albido-flocculoso- fibrilloso. Lamellis latiiisculis, subadnatis 

 vel adfivis, pallide fusco-brunneis (primitus albido-lilacinis), acie 

 alba. Sporæ et cystidia ut supr. 



It seems to be closely related to /. violascens Quel. The pale 

 lilac colour distinguishes it from no. 10. 



10. I. abjecta Karst. 



Spores ovate, 8 1 /.,— 9 1 /. x 4V 3 u. Cystidia bottleshaped-fusoid , 12 

 — 13 abroad, apex muriculate. 



Fig. specim.: Langesø, on black soil, edge of pond in folia- 



3 



