Jakob E Lange: Studies in the Agarics of Denmark. IV. 37 



flocci above and flocculose-fibrillose below. Gills distant, broad, 

 sootbrown (at last with a rubescent tinge from the spores 

 broadly adnate, slightly emarginate with a decurrent tooth, edge 

 not darker than face. This last character and the distant gills 

 are the only differences between my plant and the description of 

 Winter (Saccardo V no: 29%), and I do not think them suffi- 

 cient for considering it specifically distinct. 



9. R. icterinus Fr. 



Spores 8 — 12X7 u. Cystidia (in figured specimens) rather short, 

 somewhat nodulose hairshaped. (In other finds 0.) 



Fig. specimens: I: Odense, on boggy ground in park under 

 Alnus, Oct. 1896. — Rather common in similar localities. It 

 has a faint, but very characteristic fragrant smell (almost like 

 pineapples). 



9a. R. i. forma gracillima J. E. Lange. 



Spores 9 — 10 x 7 u, subovate, with rather prominent angles. 

 Cystidia 0. 



Fig. specimens II: in a grassy ditch under hedge, Våsemose 

 near Holmstrup, Sept. 1902. Differing only in being smaller 

 (cap 1 cm) and very-slender (stem 6 cm X 1,5 mm). 



Intermediate forms are often met with. The cap is often 

 almost devoid of yellow, rather pallid and watery dingy incar- 

 nate, with a fulvous tinge at the top. Such forms, which especi- 

 ally occur late in the season after the first frosty nights, might 

 be referred lo Ag. pleopodius (Bull.), which Ricken takes to be 

 identical with Ag. verecundas Fr. But the characteristic smell 

 (first noted by Schroeter, but not observed by Ricken) makes 

 me believe they are only reduced forms of R. icterinus. 



10. R. minutus Karst. 



Spores 9—10 x 7 — 7V_> u, 5-(6-)angular. 



Fig. specimens: Pederstrup, on boggy ground in wood, under 

 Alnus, gregarious, Aug. 1902. Also found at »Egeskov«, Sept. 1916. 



Cap 1 — l 1 /-, cm, piano convex, slightly umbilicate, minutely 

 striate to umbilicus, pallid, striae a little darker (dingy drab or 

 pale brownish), umbilicus darker. Stem slender (3 — 5 cm x Vj. z 

 mm , brownish, apex paler, even, base slightly white-fibrillose. 

 Gills whitish then rosy-incarnate, somewhat adnate. — The spores 

 are sometimes almost spheric (as indicated by Karsten) and it 

 might therefore be sought under ß. But I place it here in the 

 vicinity of R. icterinus, with the smaller forms of which it has 

 much in common. 



ß. SUBSPHÆROSPORÆ. 



11. R. junceus Fr. 



Spores 8V2 — IOV2 x 7 V-.> — s u < subspheric, obtusely 5-(6-)angular. 

 Basidia 4-spored. 



