Shirley C. Tucker Herbarium at Louisiana State University (LSU:Lichens)
LSU00147156
83546da5-bb54-4b4d-87b6-7a0123d80465
158290
Placynthium nigrum (Hudson) Gray
Placynthiaceae
Shirley C. Tucker
33206A
1993-07-31
United States, Iowa, Winneshiek, From State Rte. 138 S: 3 mi N of Bluffton on Co. Rd. W20, ca 1 mi W and ca 0.5 mi N; ca 0.5 mi due E of Cold Water Spring.
43.441666 -91.95
TRS: T100N R9W Sec32 NE1/4 of NW1/4; 43° 26' 30'' N 91° 57' W
335 meters
1100 ft.
Cold air slope, N aspect with limestone/dolomite outcrops with vents; unusual northern plants include Ulmus rubra, Juniperus, Celtis, Betula, Physocarpus, Tizia aurea, Eupatorium rugosum, Rudbeckia hirta, Anemone cylindrica, Campanula rotundifolia, Fragaria, Galium boreale, Heuchera hirsuticaulis.