Jakob E. Lange: Studies in the Agarics of Denmark. IV. 5 



|3. Hygrophanæ (Fr.). Cap but slightly fleshy, hygrophanous 

 smooth. 



a. Stem with brown scales below the ring 15. P. mutabilis. 



b. Stem without brown scales. 



1. Growing on wood (twigs, needles). 



* Cap 2 — 5 cm broad; gills rather narrow . 16. P. marginata. 

 £ Cap about 2 cm; gills broad 17. P. unicolor. 



2. Growing on Sphagnum. Stem very slender. . 18. P. mycenoides. 



SYSTEMATIC AND FLORISTIC NOTES. 



A. HUMIGENÆ. 



a. VRLATÆ. 



1. P. Vahlii (Schum.) (= P. aurea Matt.) 



Spores 12x5 u, fusiformly ellipsoid. Basidia 4-spored. Cystidia 

 0. Cells on surface of cap inflated (ovate, subspheric or almost 

 fusiform), light yellow, up to 30 \x long. 



Figured specimens : Copenhagen, on the ground (rich soil) in 

 churchyard (Vestre Kirkegård), Oct. 1905 (numerous specimens). 

 — Also found at Holmstrup, in a garden, Oct. 1913 (solitary). 



The name P. aurea has by several authors (f. inst. Quélet) 

 been applied to P. spectabilis, with which this plant has nothing 

 to do. — A very elaborate description is given by Sev. Petersen 

 in »Meddelser fra Foreningen til Svampekundskabens Fremme« 

 (Hæfte 1, 1916). — In my specimens the radiating ridges on the 

 ring (which are well shown in Fries' figure — Icon, selectæ II, 

 101 — ) extend half way down the stem or more. This form is 

 figured by Coöke (loc. cit. tab. 347) sub nom. var. Herefordensis 

 Renny. — I do not think there is any real difference between 

 P. Vahlii and P. aurea; but as the latter name has been so much 

 misapplied I deem the former one preferable. 



2. P. caperata (Pers.) (Rozites c. Karsten) 



Spores liy 2 — 13 x l l j 2 — S x / 2 (i, broadly ovate or somewhat lemon- 

 shaped, minutely granulate, somewhat oblique. Basidia gene- 

 rally 4-spored. (1913: Spores 12 — 14 x 7— 7 8 / 4 u). 



Fig. specimens: Grib skov, woodofFagus, Sept. 1896. Chiefly 

 in beech-woods, but also met with in mixed (coniferous-lolia- 

 ceous) woods. Not common. 



On account of the rudimentary universal veil Karsten has 

 placed this species in a new genus, Rozites, intended to form a 

 parallel to Amanita. Fries in his earlier works referred it to 

 Cortinarius (Phlegmacinm). 



