POTTIA. 95 



Fam. 2. Pottieae. 

 34. POTTIA, Mr. 



A. Peristome rudimentary or absent. 

 1. L. with lamellae on upper surface. 



141. P. pusilla, Hedw. (P. cavifolia, Bhr.). St. very 

 short and simple or branched. L. erecto-patent, con- 

 cave, obovate or elliptical. Caps, oval, on a short seta, 

 lid obliquely rostrate. 



Banks and mud walls. March^ 



Var. /3. EriLOSA. St. short. L. somewhat acuminate, 



scarcely piliferous. 



Var. 7. iNCANA, N. and H. L. with long hair-like 



points, 



2. L. without lamellae. 



142. P. minutula, B. and S. Very minute. L. cari- 

 nate, spreading, ovate-lanceolate, granulate at back^ 

 margins recurved, nerve red, excurrent. Caps, small, 

 ovate-truncate, lid flattish, conical, not beaked. 



Fallow fields. Winter and spring. 



Var. /8. EOiESCENS. L. narrower, reddish. 

 Var. 7. CONICA. L. ovate-lanceolate, with a short 

 mucro. Caps, narrower at mouth. 



143. P. truncata, L. St. \ inch. L. spreading, 

 obovate-acuminate or oblong-lanceolate, broadly con- 

 cave at base, carinate above, margin plane, with a 

 slightly excurrent nerve. Caps, obovate, truncate, 

 with a wide mouth, lid convex, obliquely rostrate. 



Fallow soil. February, March. 



144. P. intermedia, Turn. Larger than last. L. 

 ovate-lanceolate, margin integrate, revolute below. 

 Caps, oblong, subcylindric, contracted below mouth. 



