[Vol. 13 

 302 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



ning out, concolorous or whitish; in section 200-500 [i thick, thick- 

 ening by becoming stratose, the outer stratum deep blue, the 

 h}iihae thick-walled, interwoven, nodose-septate, not incrusted, 

 3-4} 2 tJ- "^ diameter; no gloeocystidia ; spores even, 6-10 X 



4H-5 (X. 



Fructifications 3-10 cm. in diameter. 



On under side of decaying limbs of Quercus and other frondose 

 species. In Europe, southern United States, Illinois, and Japan. 

 August to November. Probably in quantity where found. 



C caeruleum is easily recognized by its deep blue color and 

 occurrence on fallen oak limbs. 



Specimens examined: 

 Exsiccati: Cavara, Fungi Longobardiae, 13; Cooke, Fungi Brit., 



221, and ed. II, 5; Libert, PI. Crypt. Ard., 22; Ravenel, Fungi 



Am., 451 ; Ravenel, Fungi Car. 3: 27; de Thiimen, Myc. Univ., 



1207; Westendorp, Crypt. Beige, 767. 

 Denmark: Skarup, E. Rostrup, in de Thiimen, Myc. Univ., 1207. 

 Italy: Cavara, in Cavara, Fungi Longobardiae, 13. 

 Belgium: in Westendorp, Crj^pt. Beige, 767. 

 France: Libert, in Libert, PI. Crypt. Ard., 22; Corrombles, F. 



Fautrey, comm. by Lloyd Herb. 

 England: Chichester, in Cooke, Fungi Brit., ed. II, 5. 

 South Carolina: H. W. Ravenel, in Ravenel, Fungi Car. 3: 27; 



Aiken, H. W. Ravenel, Fungi Am., 451. 

 Georgia: Atlanta, E. Bartholomew, 5679 (in Mo. Bot. Gard. 



Herb., 44218). 

 Florida: Sanford, C. L. Shear, 5204 (in Mo. Bot. Gard. Herb., 



62164). 

 Alabama: Auburn, F. S, Earle (in Lloyd Herb., 3450, Burt Herb., 



and Mo. Bot. Gard. Herb., 4851), Earle & Baker, comm. by 



A.B. Seymour (in Mo. Bot. Gard. Herb., 16394); G. L. Peltier 



(in Mo. Bot. Gard. Herb., 4684), A. H. W. Povah, 906 (in Mo. 



Bot. Gard. Herb., 58692), and F. A. Wolf (in Mo. Bot. Gard. 



Herb., 43983); Montgomery County, R. P. Burke (in N. Y. 



Bot. Gard. Herb., and Mo. Bot. Gard. Herb., 61562), and U (in 



Mo. Bot. Gard. Herb., 16983). 

 Illinois: Anna, C. J. Humphrey, 1356 (in Mo. Bot. Gard. Herb., 



42932). 



