;jv Dansk Botanisk Arkiv, Bd. 2, Nr. 7. 



al first white, then grayist sordid, emarginate with a deeurrent 

 line. Flesh whitish, thai of the stem turning slightly dirt-hrown, 

 but not flushed with incarnate. 



The synonymy of this species is very bewildering. I have 

 selected the name /. scabra sensu Ricken (loc. cit. pag. 108), but 

 omitted the name Müller (or Flora Danica). What Ag. scaber 

 Müller really is, nobody is likely ever to find out. Probably 

 the plant mentioned by'MASSKE (Monograph pag. 489) and figured 

 by Cooke (loc. eil. tab. 381) sub noin. /. Bongardii is identic. 

 The /. scabra of Fries, Massee, Quélet and others is without 

 smell, and the /. scabra figured by Cooke is very unlike my 

 plant. 



|3. INGRATÆ. 

 a. squarrosæ-laceræ. 

 5. I. Hystrix Fr. (forma minorem Fr.). 



Spores narrowly ovate-lemonshaped, 10 X 6 u. Edge of gills 

 sparingly set with dispersed, fusoid-boltleshaped, slightly muri- 

 culate, about 14 u broad cystidia, mixed with numerous inflated 

 ovate, about 12 u broad ones. The erect cuspidate scales on the 

 cap are formed of agglutinate fibrils. 



Fig. specim.: Vaasemose, wood of Fagus, Oct. 1915 (a single 

 specimen). 



Excellently figured by Fries (Icones sei. tab. 106 l ), but im- 

 plant was smaller and not so dark. 



() a. I. lacera Fr. 

 .Spores almost cylindric, long, 11— 15 x 4 1 / 3 \i (or 11 — 18 x o-o 1 /,», 

 10—13 x 5 3 / 4 u). Cystidia (projecting portion) inflated conic, ob- 

 tuse or somewhat acute, occasionally slightly muriculate, about 

 18 u broad. 



Fig. specim.: Bederslev, edge of path in young plantation of 

 Picea, July 1898. — Common on sandy ground, especially in 

 plantations of Picea etc., but also in the sandhills along the West- 

 coast. — (/. marilima is said to have nodulose spores, but seems 

 to be very much like this species). 



6 b. I. lacera forma gracilis. 



Spores and cystidia as in the type. 



Fig. specim.: Hjallese, in copsewood amongst grass (on rather 

 rich soil), Sept. 1904. Slender like a Leptonia, but probably only 

 a somewhat etiolated form. 



7. I. cincinnata Fr. 



Spores obliquely ovate, 9 x 5 \i. Cystidia on edge: a) dispersed, 

 projecting, cylindric- elongated fusiform, slightly muriculate; 



