662 



THE AMERICAN NATURALIST 



[Yo-L. XL 



4. Ramalina calicaris farinacea Schaor. — One old wall had 

 several patches on individnal rocks. 'I'ransition zone. Sterile. 



."). Cetraria islandica ( L. ) Ach.— Common in a reduced 

 state on the ledums near the sunmiit. Sterile. 



(i. Cetraria ciliaris (Ach.).- Not uncommon on pines near the 

 hase. Fertile. 



7. Cetraria lacunosa Ach.— ( onunon on ])incs on Uinelow 

 Hill and ahout the l>ase of the mountain ; rare in tlu' Snl.-( anadian 



5. Cetraria oakesiana 'i'nck. ("onunon in the Sul)-( "anadian 

 zone on dead wood, yellow hircli, oaks, and in one instance on rock. 

 Sterile. 



9. Cetraria juniperina pinastri Ach. — A few exam])les on a 

 fallen spruce at timber line. Sterile. 



10. Evemia prunastri (L.) Ach. — Common in the Tran- 

 sition zone, rare in the Sub-Canadian. Found growiuf? on old 

 roofs, stone wall, on Parmclia perlata on rock, and on deciduous 



11. Usnea barbata florida Fr.— Uncommon on oaks on 

 Biovlow liiil. Sterile. 



12. Usnea barbata florida rubiginia Michx.— BiL^elow Hill, 

 rnconunon on oak>. A .n.all but fairlv tvpi,-:d specimen ua^ col- 

 Iccte.l on a rock, which pn.vo that the' colorin- i> not dnc to 

 tannin or .ome other ve-etable colorin- matter in the bark of 

 trees as has been su^rtrested. Sterile. 



13. Usnea barbata ceratina Schaer.— One untvpical sp(>ci- 

 men collected on an oak on Bigelow Hill. Sterih'. 



14. Alectoria jubata chalybeifonnis Acli. - A ^inL^le specimen 

 was collected on Biuvlow Hill .,n the on.un.l <.-rowincr with 

 Cladonias. 



b"). Theloschistes concolor effuse Tuck. d'wo snuill ^])eciinens 

 on oak on Bi-.^h.w Hill. 



IC). Parmelia perlata L.- Ach. (ninmcn du rock- thnniirh- 



bS. ParmeUa crinita Ach.- One example urowino' . 

 apple tree. Bi-elow Hill. Sterile. 



