Mr. R. Spruce on the Musci and Hepaticse of Teesdale. 199 



Pohlia acuminata, Hoppe and Hornsch, Bot. Zeit. 1819, p. 94 ; 

 Brid. Bryol. Univ. i. p. 610. 



Near the west end of Holwick Scarr, very scarce, and I did not 

 succeed in finding more than a few dead capsules. 



It has also been discovered more lately by Mr. Wilson in Wales 

 ("Cwm Idwel^ ^^^^g- 1843^^), and from a comparison of his speci- 

 mens^ which are in very good state, with others of Bi'. elongatum, 

 Dicks., I am inclined to regard them distinct. In both species 

 the inflorescence is monoicoiis, but in the former the antheridia 

 are included in gemmce seated at the base of the female flower ; 

 whereas in the latter, they stand in pairs in the axils of the peri- 

 chsetial leaves. Besides, in the former the leaves are of a deeper 

 green, shorter and broader yet with a more slender point, less 

 decidedly serrate, with margins more strongly recurved, a much 

 stronger nerve and smaller areolation. In the form of the cap- 

 sule, the two mosses present scarcely any difference. 



Br. acuminatum appears to be of frequent occm'rence on the 

 continent, and many varieties and subvarieties are described in 

 the ' Bryol. Europtea.' 



24. Bryum albicans, V^^\. Near the High Force and other places, 

 but barren. 



25. Br. alpinum, L. Frequent on low moist rocks; I saw no 

 fruit. 



26. Br. annotinum, Hedw. In fruit near the High Force inn, and 

 on the moor as you go to Cronkley Bridge, but scarce. 



27. Br. argenteum, L. Frequent. 



28. Br. ccespititium, L. On a wall near Barnard Castle. The 

 only station observed in Upper Teesdale was upon a wall near the 

 farmhouse on the hill above the High Force. 



29. Br. capillar e, L. On walls between Barnard Castle and Mid- 

 dleton ; on rocks in Upper Teesdale. 



30. Br. carneum, L. Moist sandy situations. 



31. Br. cernuum, B. and S. " Caule ramoso, radicante ; foliis pa- 

 tulis ovato-acuminatis, concavis, costa excurrente mucronatis ; 

 capsula in pedicello elongato magis minusve curvato nutante 

 vel pendula, pyriformi, operculo parvulo, convexo, acuminato, 

 annulo magno ; peristomio interno externo adglutinato." — 

 Bryol. Europ. 



On walls by the road- side all the way from Barnard Castle to the 

 High Force inn, especially abundant about Romaldkirk and iVIickle- 

 ton ; it is also frequent on the rocky banks of the Tees, growing 

 along with Br. inclinatiim. 



Hedwig, having failed to observe the inner peristome (in con- 

 sequence of its being closely soldered to the outer), included this 

 moss in his genus Cynodontium, to which he assigned the follow- 

 ing character : " Peristomium simplex octo aut sedecim pariuni. 

 Sporangium absque apophysi. Flos terminalis hermaphroditus." 



