CLASSIFICATION OF AUAKICS KH 



mind it' we make several species from an old group of one species. 

 Bence varieties are raised to the rank of species, and forms to the 

 rank of variety, etc. This method is not used by the theoretical 

 biologist 'mi is very useful for practical every day arrangements 

 for study. The above species is easily distinguished as such in 1 1 1 «* 

 majority of cases hence ii is now kepi distinct. In order to produce 

 fundamental proof thai C cinnamomeus and C. semisanguineus are 

 one and the same species, absolutely expressed, it would be accessary 

 to grow one kind from spores derived from the other kind. 



409. Cortinarius cinnabarinus I'r. 



Epicrisis, 1836-38. 



Illustrations: Fries, [cones, PI. L54, Fig; 4. 

 (Jillet, Champignons de France, No. 203. 

 Patouillard, Tab. Analyt, No. (J47. 

 Quelet, in Grevillea, Vol. VII, PL 110, Fig. 4. 

 Ricken, Die Blatterpilze, PI. 47, Fig. 5. 



PILEUS 3-6 cm. broad, campanulate, umbonate, sometimes plane, 

 innately silky-shining, bright cinnabar-red, dry, even or rimose, some- 

 times split on margin. FLESH pallid reddish, fading. (JILLS 

 adnate. then emarginate. rather broad, ventricose, subdistant, din- 

 nabar-red then dark rusty-red, velvety-shimmering, edge entire. 

 STEM 2-5 cm. long, is mm. thick, equal or tapering apward, cin- 

 nabar-red, shining, stuffed then hollow, fibrous, fibrillose. COR- 

 TINA concplor. SPORES elliptical, slightly rough-punctate, 

 7-9x4.5-5.5 micr. BA8IDIA 36 x 7. 1 spored. 



Gregarious or scattered. On the ground, in frondose W Is, al- 

 most exclusively in oak woods. Throughout the State; Marquette, 

 Ann Arbor, New Richmond, etc. July-August. Frequent (rare 

 September and October). 



This is one of the early Cortinarii of Hie season. It frequents 

 rocky or hilly oak woods and in this respect shows a preference 

 which is different from that of the same species in Burope where 



it is said by Ricken and Fries t<» occur almost exclusively in beech 



woods. As data from beech woods in this country are Lacking thi^ 

 may also be true here but not so far as my own observation extends. 



This preference might seem to indicate a mycorhizal connection with 

 the oak roots, but so far every examination showed that the reddish 

 mycelium merely vegetates in the leaves and humus. 

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