38 MUSCl-ACHOCAltPI-PEIUSTOMI. [Dicranum. 



p. 193. — D. flavidum, Schwaegr. Suppl. v. 1. p. 192. t. 45 — 

 D. uncinatum, Fl. Brit. p. 1207. E. Bot. t. 2261.— D. su- 

 deticum, Schwaegr. Suppl. v. 1. p. 175. t. 45. — Bryum uncina- 

 tum, cervicidatum and parvulum, Dicks — Oncophorus, Brid. 



Bogs and moist banks, sides of drains, &c. Fr. June. — This is 

 a small moss of a yellowish colour, covering with its dense, tufts the 

 black soil of turf-bogs ; — but Mr. Wilson finds in Cheshire a moss twice 

 the size of this, having the habit of D. heteromallum, but the remarkably 

 broad nerve to the leaf of the true D. cervicidatum. 



8. D. flexuosum, Hedw. {zigzag Fork-Moss); stems nearly 

 simple rigid, leaves lanceolato-subulate much acuminated straight 

 their nerve very broad, seta flexuose, calyptra fringed at the 

 base, capsule ovate at length striated, lid rostrate. Hedw. Sp. 

 Muse. t. 38. Turn. Muse. Bib. p. 74. E. Bot. t. 1491. 

 Fl. Brit. p. 1229. Hobs. Br. Mosses, v. 1. n. 38. Schwaegr. 



Suppl. v. I. p. 189. Musc.Brit.p. 94. t. 16 Bryum flexuosum, 



Linn. — TJiysanomitrion flex. Am. Disp. Muse. p. 33 — Campy- 

 lopus flex. Brid. — Bryum immersum aiui B. fragile, Dicks. — 

 [3. nigro-viride; stems elongated blackish-green, leaves often 

 piliferous. Campylopus pilifer, Brid. — Sphagnum alpiniML, 

 Linn.— Dill. Muse. t. 47. f. 33, and t. 32. /. 3. 



On turf-bogs and wet rocks. /3. in alpine situations. Fr. Winter. — 

 This is a highly variable species, when growing in the plains having short 

 stems and pale yellow leaves, which are so fragile as frequently to be 

 found broken offand lying upon the tuft in considerable quantities, look- 

 ing at first sight not unlike the dimidiate calyptrce of the genus — and 

 hence the Bryum fragile of Dicks. The alpine state of the plant is 

 sometimes 4—5 inches in length, usually of a blackish colour, with 

 diaphanous points to the leaves, rarely bearing fructification. Specimens 

 with falcate leaves have been gathered near Killarney by Mr. Wilson. 



f -j- Nerve narrow. 



* Capsule with a struma. 



9. D. virens, Hedw. (green spur-fruited Fork-Moss); stems 

 elongated, leaves from a broad sheathing base subulate their 

 margins recurved crisped when dry pointing in all directions, 

 capsule smooth oblongo-cylindrical subcernuous strumose, lid 

 rostrate. Hedw. St. Cr. v. 3. t. 32. Turn. Muse. Hib. p. 69. 

 FL Brit. p. 1406. E. Bot. t. 1462. Schwaegr. Suppl. v. 1. 

 p. 194. Drum. 31usc. Scot. v. 2. n. 41. Muse. Brit. ed. 2. p. 95. 

 t. 17. — Oncophorus, Brid. 



Marshy places upon the more elevated mountains of Scotland, espe- 

 cially on Ben Lawers. Ireland, Dr. Scott. Fr. June. — British speci- 

 mens differ from continental ones by having longer and entire points to 

 the leaves. 



10. D. Schreberid?ium,Hedw. (Schreberian Fork- Moss); stems 

 rather short simple tufted, leaves squarrose from a very broad 

 sheathing base suddenly subulate crisped when dry, capsule 

 ovate subcernuous, struma distinct, lid rostrate curved. Hedw. 



