102 
10. Lecidea albocoerulescens (Wulf.) Schaer., Lich. Helv. Spic. 3: 142. 1828. 
On sandstone in bed of creek, Falls Run, Glenshaw, Allegheny Co., O. 
E. Jennings, Sept, 17, 1921. 
11. Lecidea confluens (Ach.) Schaer., Spicil. p. 144; Lich. Helv. n. 187. On 
sandstone in stream bed, near Clarion, Clarion Co., O. E. Jennings & 
W, H. Emig, Sept. 4, 192 1; on sandstone block in bed of Falls Run, 
Glenshaw, Allegheny Co., O. E, Jennings, Sept. 17, 192 1. This species 
is a native of alpine and arctic regions and for this reason. Prof. Plitt, 
who has seen at least one of the specimens, is somewhat doubtful about 
the determination. 
12. Baeomyces roseus Pers., Ust. Ann. Bot. 1794. Mostly on clay soil under 
various conditions; common along roadside banks and slopes. It has 
been reported from several counties, namely: Westmoreland, Cambria, 
Fayette, Armstrong and Clarion, various collectors, 
13. Cladoma rangiferina (L,) Web. Wig. Prim. Fl. Hols. 90, 1780, pro parte. 
Mostly on humus. In Bedford Co., near Bedford Springs, it occurs on 
a limestone field with pines, Kalmia, and Polytrichum, Sept. 13, 1919, 
O. E. Jennings; and there are three different collections by O. E. Jennings 
from sand-plain, Presque Isle, Erie County. 
14. Cladonia sylvaticalaxiuscula (Del.) Wain., Mon. Clad. Univ. 1:29. 1887. 
On soil from Morris Farm, Ohio Pyle, Fayette Co., May 30-31, 1908^ 
O. E. Jennings; and from near Carnot, Allegheny Co., J, A. Shafer, 1888-9. 
15. Cladonia bacillaris clavata (Ach.) Wain., Mon. Clad. Univ. 1: 1887, On 
dead wood with Cladonia ochrochlora ceratodes. Ohio Pyle, Fayette 
County, O, E. & Grace K. Jennings, Sept. 1-3, 1906. 
16. Cladonia macilenta Hoffm., Deutsch. Fl. 2: 126. 1795. On humus, Slippery 
Rock Creek, Lawrence Co., Miss Susan Gageby, 1906. 
17. Cladonia coccifera (L..) Willd. Fl. Berol. Prodr. 361. 1787. On soil, Kittan- 
ing, Armstrong Co. This is a rather doubtful specimen. 
18. Cladonia cristatella Tuck., Amer. Jour. Sci. 25: 428. 1858. Common on 
dead wood, often found on humus or soil. This is a very common form, 
having been reported from different counties. In Erie County it is found 
on the sand plains of Presque Isle. It has been found also in Allegheny, 
Lawrence, Jefferson,. Fayette, Elk, Crawford, Blair, Center, Somerset, 
Washington, Armstrong, and Butler counties. It is probably one of our 
most common species. Often it occurs with other forms, such as C. 
ochrochlora ceratodes, C. pyxidata neglecta, and C. caespiticia. 
19. Cladonia cnstatella vestita Tuck,, Syn. N. A. Lich. 1: 255. 1882. Commonly 
on soil. Nixon Sta., Butler Co., Feb. 3, 1917, and Wildwood, Allegheny 
Co., Aug, 18, 1919, both Wm. Millward; Rachelwood (Mellon Estate), 
Laurel Hill Mt., New Florence, Westmoreland Co., Sept. 8-1 1, 1907, 
O. E. Jennings; and VanEmman, Washington Co., April, 1922, O. E. 
Jennings. 
