CATALOGUE OF PLANTS. 343 
ISOPTERIGIUM, Mitt. 
I. elegans (Hook.), Lindb. (Plagiothecium elegans, Hook.) 
In crevices of shaded rocks, northern part of the State. 
Var. terrestre, Lindb. 
On the ground in a ravine near Pascack ; sterile. 
I. turfaceum, Lindb. 
Bergen: On the ground in woods, Palisades. 
PLAGIOTHECIUM, Br. & Sch. 
P. latebricola (Wils.), Br. & Sch. ; 
Bergen: About the roots of old stumps, ete., in swamps near 
_ Closter. 
P. Passaicense, Aust. 
Rocky banks. Passaic; Morris; Bergen. 
P. denticulatum (L.), Br. & Sch. 
On the ground in wet woods and swamps; common. 
Var. pusillum, Aust. 
On flat rocks in the shade of hemlocks; also on the roots of 
trees in dry woods. 
Var. letum (Br. & Sch.), Lindb. 
Morris: Along the Rockaway River below Boonton—Mrs. 
Britton. 
P. Mullerianum, Schimp. 
In rocky ravines, northern part of the State. 
P. Sullivantiz, Schimp. 
Passaic: About Greenwood Lake—Mrs. Britton. Deter- 
mined by E, A. Rau. 
P. sylvaticum (Huds.), Br. & Sch. 
In deep, wooded ravines in mountainous regions.* 
P, striatellum (Brid.), Lindb. 
Bergen: Crevices of rocks and rocky banks, Closter. 
* The two varieties of the species admitted into the Preliminary Catalogue are not 
certainly known from the State. 
