30 JOURNAL OF THE LJ^ly. 



were abundant upon other Cyprus ties in this yard. This wood 

 is not used for ties in the main line of the Panama railroad. 

 Lignum-vitae ties, near the Atlantic coast, had been in service 

 many years ; yet only a little fungus was found upon them. 



A few specimens of Lenzites striata, as identified by Prof. 

 Charles H. Peck, were obtained. At Bujio Quarry, sixteen miles 

 inland, this latter fungus was very abundant on the sap-wood of 

 the Lignum-vitse ties. At Frijoles, three miles further inland, I 

 found the same fungus, and also Polyporus sanguineus, on Lig- 

 num-vitae ties, in a recently constructed switch-track. In many 

 cases, both species were found upon opposite sides of the same 

 tie. The Lenzites striata was dry and firm, and had evidently 

 ceased growing, shortly after the beginning of the dry season. 

 Polyporus sanguineus, on the contrary, was fresh and growing. 

 At Paraiso, on the Pacific slope, this fungus was found, in con- 

 junction with Lenzites abietina, Fr., on Cyprus ties, in the tem- 

 porary track of the Panama Canal, and also on ties piled three 

 and four feet high. 



These specimens of fungi were collected in January and 

 February, of the present year, during what is called there, "the 

 dry season," which commences in December, and lasts until 

 April or May. The remaining months are called " the wet sea- 

 son ; " the rain-fall on the Atlantic coast being from ten to 

 twelve feet per annum, which decreases to one-half this amount 

 on the Pacific coast. The mean annual temperature of about 

 80° Fahr., and the humidity of the air, form the most favorable 

 conditions for the growth of fungi, and consequent rapid decay 

 of woods, on the Isthmus of Panama. 



CHAM^CYPARIS SPH^ROIDEA, SPACH ; WHITE 

 CEDAR. AND ITS FUNGUS, AGARICUS CAM- 

 PANELLA, BATSCH. 



BY P. H. DUDLEY. 



{Read January ^th, 1887.) 



This is the White Cedar of the Atlantic coast, which grows in 

 dense masses in cold, deep swamps, "from Southern Maine to 

 Northern Florida, and along the Gulf coast to the valley of the 



