— 37 — 
labelled, and another labelled R. pusilla geniculata Tuckerm. undoubtedly 
belong here. 
The collection also contains one specimen of Ramalina reticulata 
(Noelh.) Krempelh. from California, two fruited specimens unidentified of 
Ramalina rigida Pers. from Nantucket, one specimen of Ramalina 
ceruchis (Ach ) DeNot (?) from Fayal, Azores, and one specimen, Ramilina 
Menziesii Tuck. , from Oregon. 
Genus; Cetraria (Ach.) Fr., Mull. 
8. Cetraria Islandica (L.) Ach. Three specimens. One from “Mon- 
adnoc,” and another labelled “rare.” Sterile. 
9 . CetrAria aleurites (Ach.) Th. Fr. Nine specimens. Two fertile. 
One labelled Parmelia aleurites, and one undetermined; of three also 
i. \ 
labelled “ P . placordia" Nyl. two belong here — one is P. tiliacea (Hoffm,) 
Floerk. 
10. Cetraria ciliaris (Ach.) Tuckerm. Seven specimens, all fertile. 
Three undetermined, and one distinctly ciliate, labelled lacunosa . (Fitz- 
william, common). 
11 . Cetrar*/ saepincola (Ehrh.) Ach. Two fertile specimens, both 
labelled sepincola. One intermixed with C. j . Pinas tri , labelled prunas- 
tri. 
12. Cetraria lacunosa Ach. Five fertile specimens. Two are labelled 
var. Atlantica , a form described by Tuckerman in his “ A Synopsis of Lich- 
ens of New England,” etc., Cambridge, 1846, p. 16, but not recognized in 
his Synopsis of 1882, Part I. One specimen is labelled v. stenophylla , which 
it undoubtedly is not, being however, peculiar in that the margins of the 
apothecal cups are crenulate. (Fitzwilliam, common). 
13. Cetraria glauca (L.) Ach. One specimen, thus labelled, is 
wrongly determined, being Nephroma Icevigatum parile Nyl. 
14. Cetraria Oakesiana Tuckerm. Two specimens. One fertile. 
15 . Cetraria aurescens Tuckerm. One specimen. Fertile. 
16. Cetraria juniperiana Pinastri (“ Prunastri ”) Ach. Three sterile 
specimens, one labelled Cetraria juniperina (L.) Ach. “Keene, very 
rare,” is however, the subspecies Pinastri Ach.; another labelled simply 
Cetraria juniperina is also the variety Pinastri. (See also under No. 12). 
Genus; Evernia Ach,, Mann. 
17 . Evernia furfuracea (L.) Mann. Three specimens. Sterile. (Fitz- 
william, locally common). 
18. Evernia prunastri (L.) Ach. Three specimens. Sterile. One was 
labelled “ B. cladonia” but crossed out, evidently an early error, a miscon.- 
ception of furfuracea. (Fitzwilliam, not uncommon). 
(This collection also contains four specimens of Evernia vulpina (L.) 
Ach., two at least from Lake Tahoe, Cal. All sterile. 
Genus; Usnea (Dill.) Ach. 
19. Usnea barbata Florida Fr. Two specimens. Fertile. (Abun- 
dant, Fitzwilliam). 
