—107— 
. March 21, 1921; growing mixed with Parmelia caperata, Conneaut Lake 
Park, Crawford Co., July 17, 1906, D. R. Sumstine. 
66. Parmelia physodes (L.) Ach., Meth. Lich. 250. 1803. On bark and twigs. 
A specimen from Pymatuning Swamp, Linesville, Crawford Co., May 
18, 1905, O. E. Jennings, consisted of a mixture growing together of P. 
physodes, P. caperata, and Cetraria lacunosa. Collected again from the 
same locality June 12, 1905, O. E. Jennings; another found on Lanx, May 
lo-ii, 1906, consisted of P. physodes, Cetraria lacunosa and Evernia fur- 
furacca. Another specimen was found in Somerset Co. 
67. Parmelia caperata (L.) Ach., Meth. Lich. 216. 1803. Commonly on bark 
rarely on humus. In Fayette County it was collected on Juglans cinerea; 
in Somerset County, on Betula lenta; in Erie County, on Quercus velutina 
and Populus deltoides; in Crawford County it occurred with P. sulcata, 
while in Allegheny it has been found on humus with P. saxatilis. It has 
been collected also from Westmoreland, Huntingdon and Butler counties. 
68. Parmelia conspersa (Ehrh.) Ach., Meth. Lich. 205. 1803. On sandstone, 
Montrose, Allegheny Co., Sept. 21, 1905, O. E. Jennings; Bellwood, 
Blair Co., May 18, 1904, O. E. Jennings; and Somerset, Somerset Co., 
Aug. 8, 1906, D. R. Sumstine. 
69. Parmelia Nilghertensis Nyl. No data of habitat, but probably on rock, 
Pymatuning Swamp, Linesville, Crawford Co., May 18-19, 1905. O. E. 
Jennings. Determined by Mr. G. K. Merrill. 
70. Cetraria ciliaris Ach., Lich. Univ. 508, 1810. On bark, Pymatuning Swamp, 
Crawford Co., June 12, 1905, O. E. Jennings, and Stormstown, Center 
Co., Apr. 2, 1902, Miss H. E. Wilson. 
71. Cetraria lacunosa Ach., Meth. Lich. 295. 1803. A single, specimen found 
on Larix in Pymatuning Swamp, Linesville, Crawford Co., May 18, 
• 1905, O. E. Jennings. 
y 2. Evernia furfur acea (L.) Mann., Livh, Bohem. 105. 1826. On Larix with 
Parmelia physodes and Cetraria lacunosa, Pymatuning Swamp, Linesville, 
Crawford Co., May lo-ii, 1906, O. E. Jennings. 
73. Evernia furfuracea olivetorina Lopfh. On Larix, Pymatuning Swamp, Craw- 
ford Co., May 18, 1905, O. E. Jennings. Determined by Mr. Merrill 
74. Ramalina calicaris subampliata Nyl., Bull. Soc. Linn. Norm. ser. 2, 4: 132. 
1870. On twigs, Presque Isle, Erie Co., Aug. 26, 1905, O. E. Jennings. 
Merrill named this Ramalina subampliata. 
75. Usnea fiorida (L.) Web., Wigg. Prim. Fl. Hols. 91. 1780. On trees and twigs. 
In Pymatuning Swamp, Linesville, Crawford Co., in mixture with Par- 
melia (Evernia) furfuracea var. Cladonia and Parmelia physodes, May 18, 
1905, O. E. Jennings; same location on Larix, May lo-ii, 1906, O. E. 
Jennings; on oak tree on top of Bald Eagle Ridge, Center Co., near 
Matternville, Sept. 20, 1909, O. E. Jennings; Jefferson Co., Kate Stoy. 
76. Physcia speciosa (Wulf.) Nyl., Act. Soc. Linn. Bord. 21: 307. 1856. On 
bark, Nixon Station, Butler Co., Wm. Millward, Feb. 3, 1917. 
