.Jakob E. Lange: Studies in the Agarics of Denmark. IV. 29 



3. R. jubatus Fr. 



Spores 9 — 10 x / 2 X 5 l / ä -6 u, outline oval (base obliquely pointed) 

 wavy-angular. 



Fig. specimens: Near Blåkilde (by Arden), in short, mossy 

 grass in a meadow, Sept. 1900. 



Differs from no: 2 by the dark gills, smaller dimensions and 

 total want of any trace of red on stem. Cooke's figure (loc. cit. 

 lab. 317) is more like R. porphyrophceus. 



4. R. griseo-cyaneus Fr. var. 



Spores 9 x / 2 — 11 x 7 — 8 u, wavy-angular. 



Fig. specimens: Between Lindved and Hollufgård, bogg) ground 

 amongst Carices, Hypna and Mnium, Sept. 1902. 



This is not the typical form, which I have met in several 

 other places (Budme, Sept. 1912 and Sanderum Aug. 1909) always 

 in grass on peaty ground, and which is characterized by a con- 

 vex, not depressed cap with a tomentose (only very slightly 

 flocculose) coating and almost free gills (without hairshaped cells 

 on the edge) — The form here figured forms a transition to 

 R. (Eccilia) Mongeotii (vide pag. 39), and is possibly not specifi- 

 cally distinct from this species. It is very much like Cooke's 

 figure of Ag. ardosiacus (loc. cit. tab. 328), which most authors 

 consider a synonym of B. Mongeotii. — I add a brief descrip- 

 tion of my plant: Cap 2— 4 l j 2 cm, convex, slightly depressed, 

 dingy lilac, central part becoming paler and discoloured, every- 

 where minutely tomentose-squamulose. Stem 4 — 6 cm, attenuated 

 upward, base white, apex lilac-gray, fibrillose, subfistulose. Gills 

 white, adnate, almost plane, turning rosy. It appears to be 

 rather close to R. (Entoloma) Rozei Quel. 



B. SUBSPHÆROSPORÆ 



a. GENUINI FR. 

 f). R. madidus Fr. 



Spores 7 — 8 u in diam., almost spheric, obtusely pentangular. 



Not figured. — I have only met with this characteristic species 

 once (at Bellinge, grassy slopes near river, Oct. 1908). It is 

 very well distinguished from all other species by the stout, steel- 

 blue, striate-fibrillose stem. 



6. R. lividus (Bull.) {R. sinuatus Fr.) 



Spores I 1 /., — 10 u in diam., subspheric, obtusely 5-(6-)angular. 



Fig. specimens: Tommerup, in wood of Quercus and Fagus, 

 on moist clayey ground. (Also in Trelle skov, near Fredericia, 

 Sept. 1910 and at Langesø bv Odense (wood of Quercus) Sept. 

 1915.) 



The cap in my specimens was yellowish alutaceous, smooth, 



