188G.] NEW YORK ACADEMY OF SCIENCES. Ill 



iiicslica, BoJef/tiK dcsfi-iicfor, Cernlius vasfator, Agaricus mel- 

 ius, and Dceaalia vorax. The names of the first two fire gener- 

 ally mentioned and do duty for all occasions. The second is 

 the one found so destructive to the English naval vessels built of 

 oak. 



The mycelium of a fungus is not sufficient, at pi'esent, for 

 mycologists to identify species, and this is one reason why the list 

 is so small. I have only found Merulius lachrymans Fr. a 

 few times in bridges and cars, never on ties. The others of the 

 list I have not found, but in their place many which are suffi- 

 ciently destructive to satisfy all needs without importing foreign 

 varieties. While at this time I only add a few names of species, 

 there are hundreds yet to be identified which aid in inducing 

 decom])osition of wood: 



Lent inns lepideus Fr., scaly lentinus. 



J gar i CHS ainericanus. 



Polyporus apphinatus Fr. 



Polyporus versicolor Fr. 



Polyporus Incidus Fr. 



Polyportis salicinns Fr. 



Polyporus nididans Fr. 



Polyporus sidfuretis Fr. 



Polyporus gilvus Fr. 



Polyporus pergcuuenus Fr. 



Polyporus abietinus Fr. 



Polyporus pinicola Fr. 



Lenzites vilas Pk. 



Hydnum sepientriomde Fr. 



Fisfulina hepatica. 



Dwdfdea confragrosa Pers., lenzitoid form. 



Panus stypiictis Fr. 



1 have placed Lentinus lepidetis Fr. first on the list, for in 

 this immediate territory it is tiie one so destructive to timber of 

 yellow or Georgia pine {Pinus palustris Mill.). I have also 

 found it upon Pinus mitis. Being the first to call attention to 

 its destructive infiuence, its brief technical description will not 

 be out of place, as given in "Cooke's Handbook of J3ritish 

 Fungi." 



'^Pileus fleshy, compact, tough, convex, then depressed, un- 

 equal, pallid-ochraceous, broken up into darker spot-like scales; 

 stem stout, rooting, tomentose, or scaly; gills sinuate, decur- 

 rent, broad, torn ti-ansversely striate, whitish. On stumps of 

 firs, rare (U. S.)." Monstrous forms occur in dark situations with 

 or without a pileus. On the gills or laminae are borne the spores, 

 3.5 X 8 micro-millimetres, curved, and one end apiculatcd, 

 which drop out and are carried by the wind to some resting- 



