MISSOURI BOTANICAL GARDEN. 



wood fiber to which the tops and central parts are the most 

 exposed, and which, when affected, appear as if operated 

 upon by worms. . . . Timber affected in this way is 

 denominated by raftsmen, pecky.' ' 



Sargent* says of the cypress: " It is often injured, 

 especially west of the Mississippi river, by a species of 

 Daedalea not yet determined, rendering it unfit for lumber." 

 Farlow,f writing in Sargent's Silva, notes that " a species 

 of dry rot in living timber often diminishes its value, and 

 in Louisiana and Mississippi is said to affect at least one- 

 third of all the trees." Bather recently Roth J mentions 

 its occurrence in the South, and briefly describes its appear- 

 ance. Beyond these few notes, nothing appears to have 

 been said of the disease. 



OCCURRENCE. 



Taxodium distichum is now found from South Carolina 

 to Florida (some trees occur as far north as New Jersey ) 

 thence to Louisiana and northward as far as southern Indiana If 

 and southeast Missouri. Wherever the cypress grows to 

 any size, it shows the " pecky " disease, the prevalence of 

 which appears to be very variable. The exact percentage is 

 difficult to ascertain as it varies materially with the locality. 

 Roth (1. c.) says that 30% of the entire cypress supply is 

 damaged by this disease. As a rule one may say that 

 wherever the cypress grows, one will find it " pecky," and 

 that there are no regions where all trees are sound. As 

 for particular localities, Roth mentions a tract of land in 

 Florida, which had to be abandoned entirely on account of 

 " pegginess." In the Mississippi Valley by actual count it 



* Sargent, C. S. Forest trees of North America. 10th Census 

 9:184. 1883. 



t Sargent, C. S. Silva of North America 10 : 150. 1896. 



J Roth, Filibert. Progress in timber physics " Bald cypress." 

 (U. S. Dept. of Agr., Div. of Forestry, Circular No. 19: 3. 1898.) 



Hollick, A. (Cypress in N. J., read before Bot. Soc. Am. 1898.) 



f Wright, John S. Notes on cypress swamps in Knox Co., Indiana. 

 (Proc. Ind. Acad. Sci. 1897 : 172). 

 4 



