[Vol. 13 

 302 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



ning out, concolorous or whitish ; in section 200-500 \l thick, thick- 

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

 hyphae thick- walled, interwoven, nodose-septate, not incrusted, 

 3-4J/J2 \l in diameter; no gloeocystidia; spores even, 6-10 X 

 4^-5 n. 



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, PL Crypt. Ard., 22; Ravenel, Fungi 



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



1207; Westendorp, Crypt. Beige, 767. 

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

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

 Belgium: in Westendorp, Crypt. Beige, 767. 

 France: Libert, in Libert, PL 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). 



