No. 477] NEW HAMPSHIRE LICHENS 



663 



19. PanneUa tiUacea (Hoffra.) Floerk.— Common through- 

 out Transition and Sub-Canadian zones. Collected on apple and 

 yellow birch. Fertile. 



20. Parmelia borreri rudecta Tuck.— Common in Transi- 

 tion and Sub-Canadian zones. Collected on yellow birch. Sterile. 



21. Parmelia saxatalis (L.) Fr.— Not uncommon on rock. 

 Transition zone. Fertile. 



22. Parmelia saxatalis sulcata Xyl. — Coninioii in ijoth Tran- 

 sition and Sub-Canadian zones, growing on trees and rock. 

 Sterile. 



23. ParmeUa physodes (L.) Ach.— Common throughout 

 both Transition and Sub-Canadian zones, but more common in 

 the latter. One example fertile. Collected on trees, and rarelv on 

 rocks. 



24. Parmelia olivacea (L.) Ach. — Common in Sub-Canadian 

 zone on yellow bireh and oak. Fertile. 



25. ? Parmelia olivacea sorediata (Ach.) Xyl. — One speci- 

 men collected on a white pine at the base of the mountain seems 

 referable to this form. 



26. Parmelia caperata (L.) Ach.— Common in Transition 

 zone, more rarelv met with in the Sub-(^inadian. Collected both 

 on rocks and on trees. .Sterile. When found -rowing vertically 



27. ParmeUa conspersa (Ehrh.) Ach. — Conunon throughout the 

 two lower zones growing on rocks, replaced by the following spe- 

 cies al)<)ve timber line. Fertile. 



2S. Parmelia centrifuga (L.) Ach.— Xot uncommon above tim- 

 ber line, confined mainly to the highest ledges. One example 

 fertile. 



29. Physcia pulverulenta leucoleiptes Tuck.— Common in the 

 Transition zone on ai)ple trees. Sterile. 



30. Physcia stellaris ( L.).— Conunon both on rocks and trees. 

 Fertile. 



31. Physcia stellaris aipolia Xyl. - ( )nc c\ani()le collected on 

 a rock. Higelow Hill. Sterile. 



32. Physcia tribacea (Ach.) Tuck. -One exaniple colIectt>d on 

 rock on Higeh.w Hill. Fertile. 



3.3. Physcia obscuraendochrysea .\yl. — Conunon on yellow birch 



