90 MUSCI-PLEUROCARPl-PERISTOMI. [Hypnum. 



Scot. v. 2. ?i. 73. Muse. Brit. ed. 2. p. 178. t. 26. — H. serrulatum, 

 Hedw. Sp. Muse. t. 60. E. Bot. t. 1262. 



Trunks of trees, old rails and banks. Fr. Nov. — A small variety of 

 this, growing on trees, has the Leaves occasionally subsecund. 



B. Leaves squarrose. 



50. H. cuspiddtum, Linn, (pointed Bog Feather- Moss); leaves 

 loosely set ovate concave nerveless entire the lower ones squar- 

 rose those at the summit closely imbricated into a cuspidate 

 point, capsule oblong curved cernuous, lid conical. Linn. Sp. 

 PI. p. 1595. Turn. Muse. Hib. p. 177, (excl. var. (3.). Fl. Brit, 

 p. 1317. E. Bot. t. 2407. Schwaegr. Suppl. v. 1. P. II. p. 228. 

 Hobs. Br. Mosses, v. 1. n. 83. Drum. Muse. Scot. v. 2. n. 74. — 

 Dill. Muse. t. 39. /. 34. 



Bogs and wet places. Fr. Nov. — In habit, very similar to H. cordi- 

 folium, a dark var. of which, Mr. Turner has made his var. p>. The pre- 

 sent moss is easily known by its sharp cuspidate points ; it grows, in 

 water, to a considerable size. 



51. H. cordifolium, Hedw. (heart-leaved Feather -Moss); 

 leaves loosely set squarrose cordato-ovate obtuse concave entire, 

 the nerve reaching very nearly to the point, capsule oblong 

 curved cernuous, lid conical. Hedw. St. Cr. v. 4. t. 37. Fl. 

 Brit. p. 1318. E. Bot. t. 1447. Schwaegr. Suppl. v. 1. P. II. 

 p. 229. Hobs. Br. Mosses, v. 2. n. 68. Drum. Muse. Scot. v. 2. 

 n. 75. Muse. Brit. ed. 2. p. 179. t. 26. — H. cuspidatum, |S. Turn. 

 Muse. Hib. p. 177. 



Bogs. Fr. March. — A purple var. of this moss, generally barren, is 

 found in alpine situations, frequently assuming a fasciculated appearance, 

 with the tops of the branches having the leaves convolute ; if the 

 nerve of the leaf be not accurately observed, it may be taken for H. cus- 

 pidatum. In this state it is var. /3. of that species, in Mr. Turner's 

 Muse. Hib. 



52. H. polymorphum, Hedw. (variable-leaved Feather -Moss); 

 leaves loosely set squarrose cordate much acuminated entire, 

 their nerve disappearing more than half way up, capsule 

 oblongo-ovate curved cernuous, lid conical. Hedw. Sp. Muse, 

 t. 66. Muse. Brit. ed. 2. p. 179. t. 26. — H. chrysophyllum, Brid. 

 Muse. v. 2. t. 2. f. 2. 



Limestone rocks, in Ireland. Chalky downs in Sussex, Mr. Borrer. 

 Plentiful in clayey fallows, near Over and other parts of Cheshire, not 

 often bearing fruit, Mr. Wilson. Near Edinburgh, Dr. Greville. Fr. 

 Apr. — It seems doubtful if this may not be a small variety of H. stella- 

 ium, which Mr. Drummond has observed to vary with nerved and nerve- 

 less leaves. 



53. H. stelldtum, Schreb. (yelloiv starry Feather-Moss); leaves 

 loosely set squarrose cordate much acuminated entire (mostly) 

 nerveless, capsule oblongo-ovate curved cernuous, lid conical. 

 Muse. Brit. ed. 2. p. 180. t. 26. — a. majus. H. stellatum, Schreb. 

 Fl. Lips. p. 92. Hedw. Sp. Muse. p. 280. Turn. Muse. Hib. 



