j^ Dansk Botanisk Arkiv, Bd. 2, Xr. 7. 



surface of cap inflated and obtusely fusiform (varying from sub- 

 cylindric to almost lemonshaped), about 15 — 18 u broad. 



Fig. specim.: Hjallese, copsewood on boggy, peaty bottom, 

 solitary, Sept. 1906. Also found on rotten stump of Fagus, 

 »Fjellebro«, Sept. 1912, and on leaf-mould (rubbish-heap in shady 

 place) Hjallese, Sept. 1915 and 10. 



This little species is maeroscopically well characterized by the 

 gray stem, everywhere covered with white, furfuraceous down. 

 The cap is often more expanded than in the figured specimen, 

 always lacunose-rugose about the umbo. 



(To this section also belongs P. phlebophorus (Dittm.), which has 

 been met with in several localities (on stumps of Fagus) here in 

 Denmark. When typical it is very characteristic, having the 

 entire cap covered with raised lines or rather minute, wavy, 

 irregularly anastomosing ridges, which radiate from the middle 

 and almost reach the edge. These ridges are set with inflated- 

 fusoid cystidia like the gills. — It is figured (very carefully) by 

 Dittmann in Sturm's Detitschl. Flora, tab. 15.). 



B. MICACEÆ. 



11. P. semibulbosus (Lasch). 



Spores ovate-subglobose, 6—7 x 5— 5 1 /., u. Basidia 4-spored. Cy- 

 stidia obtuse, elongated-eylindric, very prominent, about 13 — 14 u. 

 broad, entire length 75— 115 u. Cells on surface of cap ovate- 

 subglobose or almost spheric, 25 — 35 u in diameter. 



Fig. specim.: Hjallese, in wood of Fagus and Populus, on the 

 ground, Oct. 1907. 



This little species has the cap densely covered with micaceous 

 »meal«. It is entirely white, campanulate-subglobose, and every- 

 where sulcato rugose. 



12. P. Godeyi Gill. (?) var. 



Spores subglobose-ovate, 7^2 x 6 u. Cystidia subovate or inflated 

 clubshaped, 12— 25u broad. (1901 : spores subglobose^ 1 /-, — 8X5 1 /-.» — 

 6 1 /-, u ; cystidia inflated fusiform). 



Fig. specim.: Hunderup, drive in foliaceous wood, on the 

 ground, Sept. 1909. The figured specimen is very small. At 

 Vormark, 1901, on the ground under Salices and Populus, I have 

 met with specimens of the normal size (cap 3 1 /« cm ) — The 

 translucidly striate margin distinguishes this species from almost 

 all others. 



I have also met with a slender, small, almost white, slightly 

 fuscous-powdered form (cap about 2 cm, stem 4 cm). This little 

 mushroom may be regarded either as a pallid form of P. Godeiji 

 or as a reduced albino-varietv of no. 14. 





