[Vol. 5 



198 



ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Louisiana : Baton Rouge, Edgerton S Humphrey , comm. by 



C. J. Humphrey, 5600. 

 Texas: Houston, H. W. Ravenel, 269, comm. by U. S. Dept. 



Agr. Herb. 

 Missouri: Creve Coeur Lake, L. 0. OverhoUs, 3168 (in Mo. 



Bot. Gard. Herb., 5707). 

 Mexico: Jalapa, W. A. S Edna L. Murrill, 331 (in N. Y. Bot. 



Gard. Herb., and in Mo. Bot. Gard. Herb., 54502) ; Orizaba, 



W. A. d Edna L. Murrill, 776 (in N. Y. Bot. Gard. Herb., 



and in Mo. Bot. Gard. Herb., 54613). 



10. A. botryosus Burt, n. sp. 



Type : in Burt Herb. 

 Fructifications resu- 

 pinate, effused, adnate, 

 scattered, becoming con- 

 fluent, at first white 

 and very thin, finally 

 thicker, cracking in dry- 

 ing and sometimes pale 

 olive-buff, the margin 

 thinning out, pruinose; 

 in structure 150-200 fi 

 thick, composed of 

 erect, crowded hyphae, 

 gloeocystidia, basidia, 

 and short, erect, bottle- 

 brush branches similar 

 to the paraphyses; 

 hyphae hyaline, even, 

 thin-walled, with ir- 

 regular outlines, 2 /u in 

 diameter; gloeocystidia usually near the substratum, cylin- 

 dric, flexuous, 80x6-7 /i, or sometimes clavate, 45x12-16 

 /x; basidia clavate, about 40X12 /x, with 4 divergent sterig- 

 mata 15 n long, 3-4 ju in diameter at base; spores hyaline, 

 even, 13-15x9-11 ai; paraphyses with tips racemose and the 

 short lateral prongs minutely globose at the end; racemose 

 portions 10-15x3-4^ n over branches; similar racemose 



Fig. 10. A. botryosus. Racemose para- 

 physes, br; gloeocystidia, gl; basidium, b; and 

 Bpores, s. X870. 



