2,,, 



A $l \Mmwn. 



uppermost' spathulate-lanceolate, perich. bracts narrowly lane., all of 

 them acutely acuminate, the margins confluent in the point,' nerve 

 vanishing in or below the apex, red, smooth at back, limb of 2-5 rows 

 of yellow or red cells, bispinoso-serrate in the upper half; cells irregular 

 hexagonal-rotundate, not senate, rectangular at base. Caps, i or 2 on 

 a pale red seta, horizontal, oval-oblong, pale yellow with a reddish 

 mouth, soft, lid pale with a short oblique beak ; peristome ferruginous, 

 punctate, endostome orange. 



HAB. Rocks and stony ground in woods, not uncommon^ Fr. 4. 



Resembling M. hornum in habit, but smaller and brighter green with the 

 infl. synoicous. Most frequent in limestone districts. 



3. MNIUM RIPARITTM Mitt. 



Dioicous; resembling M. marginatum. Leaves oval-lanceolate, 

 with two rows of short obtuse teeth nearly to base, rufescent, laxly 

 nreolate, nerve spinulose at back of apex. Peristome greenish yellow. 

 (T. LXXXI, C.) 



SYN. A/M/I/M riparium MITT. Journ. Linn. Soc. viii, 30, in Obs. (1864). LINDB. Not. ur Saells. 

 pro. Fn. et Fl. fenn. ix, 50 p.p. (1867). HOBK. Synops. 122 (1873). SCHIMP. Synops. 

 2 ed. 484 (1876). JURATZ. Laubm. oester.-ung. 303 (1882). LIMPR. in RABENH. D. kr. 

 fl. Laubm. ii, 458 (1893)..' 



Mnium orlhorrhynchum WILS. Bry. brit. 255, t. 51 (1855). 



Mnhim amblgmtm H. MUELL, in Verb. bot. Ver. Prov. Brandenb. viii, 67 (1866). 



Astrophyllnm riparium LINDB. Muse, scand. 14 (1879). 



Mnium marginatum Var. riparium HUSN. Muse. gall. 256 (1889). 



Dioicous ; plants small, seldom above I in. high, lax-leaved, green, 

 acquiring a rufescent or vinous tint, in loose tufts, the radical shoots 

 more slender and elongated. Leaves slightly decurrent, distant, 

 divergent, crumpled when dry, oval-lanceolate with a short point, limb 

 red, of 2 3 rows of very narrow cells, with two rows of short blunt 

 teeth nearly to the base ; nerve red, ending in the point and faintly 

 toothed at back, cells large roundish-angular, incrassate, about 

 015 -020 mm. in diameter, rectangular at base. Seta short, pale red, 

 caps, cernuous, elliptic, pale brown ; lid convex with a short beak, 

 peristome greenish-yellow, endostome yellow. 



HAB. On stumps by shady banks of rivers and in woods, rare. Fr. 5. 



Pondleigh stream, Hurstpierpoint (Mitten 1856) ! ! Mowthorpe Dale, Castle Howard 

 (Spruce 1844) ! ! By a stream near Perth (R. Meldnim 1886) ! ! 



This species has been confused with M. orthorrhynchum, by Wilson and 

 Others, even Lindberg ascribes minute areolation to M. riparium instead of to 



