181 
Grimmia Pennsylvanica, Schwegr. Banks of Holston river at 
Marion, on limestone rocks, alt. 2,100 ft. Slemp Creek, on 
rocks, alt. 2,800 ft. Dickey Creek, on cliffs, alt. 3,000 ft. 
Grimmia Olneyi, Sull. In bed of Dickey Creek, alt. 2,800 ft. 
Sterile. 
Grimmia acicularis (L.) C. Müll. (Racomitrium aciculare Brid.) 
Bed of Dickey Creek. On stones in water, alt. 2,800 ft., form- 
ing dark green mats, with stems often 15 cm. long. Sterile. 
Grimmia fascicularis (Schrad.) C. Müller. (Racomitrium fasciculare, 
Brid.) Summit of White Rock Mt. On wet, white sandstone, 
alt. 4,400 ft. 
Thuidium recognitum (Hedw.) Lindb. On Staley’s Knob, near 
Marion. On log, alt. 2,500 ft. ' At the falls of the Holston 
River. On ground, alt. 2,050 ft. On limestone rocks, Hun- 
gry’s Mother Creek, alt. 2,200 ft. On Slope of White Top 
Mt. On old wood, alt. 5,000 ft. Along Nick's Creek. On 
old logs, alt. 2,300 ft. 
Thuidium delicatulum (L.) Nutt. On the under side of shelving 
rocks and ledges. Slopes of Pine Mt., near Troutdale, alt. 
3,000 ft. 
Thuidium scitum (Beauv.) Austin. Summit of Pond Mt. On 
ground, alt. 3,400 ft. On Nick's Creek. On ground, alt. 
2,400 ft. 
Leskea obscura, Hedw. South Fork of the Holston, near Add 
Wolf. At base of Platanus occidentalis, alt. 2,200 ft. 
Leskea polycarpa, Ehrh. Near Lyons Gap, Walker Mt. On base 
of tree, alt. 2,500 feet. On Hungry's Mother Creek, in wet 
places, alt. 2,200 ft. Island in the Holston River near Marion, 
alt. 2,100 ft. At base of tree in swamp. Beside spring be- 
tween the turnpike and the South Fork of the Holston, not 
far from Seven-Mile Ford, alt. 2,100 ft. 
Leskea denticulata, Sulliv. Slopes of White Top. On trees, alt. 
4,000-5,800. On Crategus punctata, summit of White Top, 
in dense wet woods, alt. 5,678 ft. Mixed with Brachythecium 
acuminatum var. setosum, Zygodon viridissimus, and Radula 
complanata. 
