[Andraa. MUSCI. 



1. ANDREA. EHRHART. 



Capsule with an apophysis, 4-valved, the valves cohering by 

 their summits to the persistent lid. Calyptra horizontally 

 torn. 



1. A. alpina. HEDW. Leaves spathulato-ovate, acuminate, 

 nerveless, concave, clasping. Hedw. Sp. Muse. p. 49. Muse. 

 Brit. ed. 2. p. 2. t. 8. Dillen. Muse. t. 83. /. 39. 



On mountain rocks at an elevation of 2000 feet. From 1 2 inches 

 high ; of a purplish brown ; glossy. 



2. A. rupestris. HEDW. Leaves oblongo-lanceolate, the up- 

 per falcato-secund, nerveless. Hedw. Sp. Muse. p. 47. Muse. 

 BriLed. 2.p.2.t. 8. 



Mountain rocks. 



3. A. Rothii. MOHR. Leaves lanceolate-subulate, 1 -nerved, 

 falcato-secund. Web. et Mohr Cr. Germ. p. 386 t. 11./.7 & 8. 

 Muse. Brit. ed. 2. p. 2. t. 8. Dillen. Muse. t. 83. / 40. 



Common on mountain rocks, yet it descends to the level of the sea, 

 It is often very black. 



2. PHASCUM. Linn. 

 Seta terminal. Lid persistent. Calyptra dimidiate. 



The species are all minute annuals. Dissemination takes place by 

 rupture of the capsule. 



1. P. serratum. SCHREB. Shoots branched filiform jointed; 

 leaves lanceolate, nerveless, deeply serrated. Schreb. de Phasco 

 t. 2. Muse. Brit. ed. 2. p. 4. t. 5. 



On shaded, moist banks, not uncommon. Mr. James Drummond 

 found the seeds of several species of Musci to germinate with shoots 

 resembling conferva. In the present species I have sometimes seen 

 the branched shoots without any jointed appearance whatever. 



2. P. alternifolium. DICKS. Stems elongated ; leaves entire, 

 lanceolate-subulate, remote, somewhat adpressed to the stem. 

 Dicfc. Cr. Fasc. 1. t. \. f. 2. Muse. Brit. ed. 2. p. 5. t. 5. 



Near Bantry, Miss Hutchins. Dunkerron, County Kerry. Seeds 

 large ; perichcetial leaves very long : sides of the capsule pellucid. 



3. P. crispum. HEDW. Leaves lanceolato-subulate, their 

 points somewhat recurved, flexuose when dry. Hedw. St. cr. v. 

 1. t. 9. Muse. Brit. ed. 2. p. 6. t. 5. 



Banks near Belfast, Templeton. Seeds minute ; capsule with pel- 

 lucid sides, of the same colour as the lea^e-. 



4. P. subulatum. LINN. Leaves subulato- setaceous, straight, 

 their nerve disappearing below their summits. Linn. &p. plant. 

 p. 1570. Muse. Brit. ed. 2. p. 6. t. 5. 



Fallow fields and banks. Common. 



