— 99 — 



From the foregoing notes it would seem that rock is the new habitat to 

 which mosses most easily adapt themselves, as the species given are generally 

 found on the ground, on decaying logs, or at the base of trees. 



A few other cases that have been noticed are such mosses as Hylocomium 

 proliferum (L.) Lindb., Rhytidiadelphus triquetrus (L.) Warnst., Hypnum Schreheri 

 Willd., and Ptilium crista-castrensis (L.) De Not., growing from two to three 

 feet up the base of trees, whereas these species are usually found on the ground 

 or on rotten logs. 



Waban, Mass. 



LICHENS OF THE MT. MONADNOGK REGION, N. H.— NO. 9* 



Thomas Durfee 



These lichens were determined by the late Dr. H. E. Hasse. All the speci- 

 mens are fertile. 



Genus: Pyrenula Ach. 



161. Pyrenula glahrata (Ach.) Mass. One specimen. 



162. P. nitida (Weig.) Ach. One specimen. 



Genus: Calicium Pers. 



163. Calicium lenticulare Ach. Four specimens. 



164. C. parietinum Ach. Two specimens. 



165. C. quercinum Pers. One specimen. 



Genus: Sphinctrina Fr. 



166. Sphinctrina turhinata (Pers.) Fr. Three specimens. 



Genus: Acolium De Not. 



167. Acolium tigillare (Pers.) De Not. One specimen. 



Genus: Arthothelium Mass. 



168. Arthothelium spectahile (Flot.) Mass. Three specimens. 



Genus: Opegrapha Humb. 



169. Opegrapha macularis Fr. One specimen. 



Genus: Graphis Adans. 



170. Graphis dendritica Ach. Nine specimens. 



171. G. dendritica f. medusula (Pers.) Nyl. Four specimens. 



172. G. elegans (Borrer) Ach. One specimen. 



173. G. inusta Ach. Two specimens. 



174. G. inustula Nyl. Two specimens. 



175. G. scripta (L.) Ach. Four specimens. 



176. G. scripta f. recta (Humb.) Nyl. Six specimens. 

 Middlesex School, 



Concord, Mass. 



* No. 8 of this series was published in the Bryologist 30: 47-48. 1917, 



