[Vol. 13 

 228 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



a broad layer of suberect, branching, loosely interwoven hyphae 

 4-7 \k in diameter, not incrusted, not nodose-septate; no gloeo- 

 cystidia; basidiospores hyaline, even, 9-12 X 6-8 \i. The conidia 

 of the imperfect Necator stage are catenulate, 14-18 X 7-8 [l, 

 according to Massee. 



Fructifications 2-20 cm. long, 1-3 cm. wide. 



Parasitic on bark of branches 1-3 cm. in diameter and young 

 trees of Cacao, Citrus, Hevea, Amherstia, tea and coffee plants in 

 tropical regions, and on Ficus and pear and apple shoots in 

 Florida and Louisiana. In West Indies, Philippine Islands, East 

 Indies, and Ceylon. 



C. salmonicolor is a species very destructive to important eco- 

 nomic species of shrubs and trees, causing the Pink Disease where 

 the climate is warm and moist for sufficiently long periods that 

 the mycelium can run over the bark of young shoots and pene- 

 trate into the deeper tissues. Its parasitic occurrence on living 

 woody plants, bright color, coarse hyphae, and large spores 

 render it easy to recognize in tropical regions. 



Specimens examined : 

 Florida: Gainesville, J. Matz (in Mo. Bot. Gard. Herb., 44822, 



54934). 

 Louisiana: Baton Rouge, C. W. Edgerton, 702, 990a. 

 Porto Rico: Bayamon, J. A. Stevenson, 2827 (in Mo. Bot. Gard. 



Herb., 9689); Pueblo Vigo, J. A. Stevenson, 5436 (in Mo. Bot. 



Gard. Herb., 7820); Trujillo Alto, J. A. Stevenson, 3819, and 



W. C. Drier, comm. by J. A. Stevenson, 6770 (in Mo. Bot. Gard. 



Herb., 9059 and 55054, respectively). 

 Dominica: W. Norwell, comm. by J. B. Rorer (in Mo. Bot. Gard. 



Herb., 18560). 

 Trinidad: /. B. Rorer (in Mo. Bot. Gard. Herb., 20429); Guaico, 



/. B. Rorer, four gatherings (in Mo. Bot. Gard. Herb., 14023, 



17934, 20295, 44770) ; Port of Spain, J. B. Rorer (in Mo. Bot. 



Gard. Herb., 9008). 

 Ceylon: a portion of 3 authentic specimens determined by 



Berkeley in Kew Herb, (in Mo. Bot. Gard. Herb., 8891), 



T. Fetch, comm. by Kew Herb, (in Mo. Bot. Gard. Herb., 



8890) ; Peradeniya, T. Fetch, 8640 (in Mo. Bot. Gard. Herb., 



56245). 



