206 



Physcia endococcinea. Orange-Tip Lichen 



A subspecies found occasionally on wet rocks, mostly limestone. 

 The name is sometimes considered to be interchangeable with 

 P. endochysea, and the Hchen does not greatly differ in essentials, 

 bearing the same relation to P. setosa that P. endochrysea bears to 

 P. ohscura. The pith is of nearly the same orange color, which may 

 vary considerably in both lichens, but is always bright. The upper 

 surface is paler, often nearly white. Fruits are usually plentiful. 

 The habit is so much more luxuriant than P. endochrysea that it 

 closely resembles P. hypole^ica, and further, some of the tips are 

 bare of the normal lower layer of cells, exposing the brilliant pith, 

 at which points the holdfasts also may be orange. Thus P. en- 

 dochrysea is black beneath, P. endococcinea black with occasional 

 orange tips, P. hypoleuca white. The key to the true relationship 

 of P. endococcinea is seen where a few bristles occur under the 

 fruit-rims. 



{Group 9 will contain Cmidelaria, Teloschistes in part, Caloplaca in part.) 



Six lichen groups out of a projected 30 groups, have now been published 

 over a period of tvi^o years in Torreya, and the interest in the series expressed 

 by readers has been very gratifying to the author. The writer is considering 

 the completion of the work and bringing it out in book form, amplified to 

 include most of the lichens of the northeastern states. If interested readers 

 who have not already expressed themselves, will write to G. G. Nearing, 

 P. O. Box 338, Ridgewood, N. J., they will be informed when future groups 

 are to be published. 



Forty Years of Torreya 



This number completes the fortieth year of publication of 

 Torreya. At the annual meeting of January 8, 1901, Dr. Britton 

 offered the following resolutions, which apparently were unani- 

 mously adopted : 



"Resolved: That the publication by the Club of a monthly periodical is 

 desirable, to contain short articles and notes with special reference to the 

 study of the local flora, thus covering ground occupied by the Bulletin at its 

 establishment in 1870. 



