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



nula. Capsule ovato-cylindrical, subcernuous ; lid curved, subu- 

 late from a conical base. In D. Dillenii the capsule is cylindi'a- 

 ceous, nearly erect, with a subulate straight lid. Seeds deep olive, 

 slightly larger than the brownish seeds of D. Dillenii. Teeth of 

 the peristome shorter, deep red (almost black), opake, cloven less 

 than half way : in D. Dillenii tapering to a longer point, red at 

 the base and tips but orange-yellow in the middle, cloven more 

 than half way, often trifid. 



I did not once observe the true D. scoparium in Teesdale. Its 

 differences from D. Dillenii may be thus briefly stated : — Stems 

 of far larger size and growing in looser tufts, mostly ascending 

 from a decumbent base. Leaves more distant, of extraordinary 

 length, uniformly falcato-secund, in the slender nerve and elon- 

 gated cellules agreeing with D. Dillenii. The perichatium is still 

 more remarkable than that of D. Dillenii, and frequently encloses 

 several pedicels, which I have never seen to be the case in D. 

 fuscescens. Capsules arcuate, substrumose. 



49. Dicranum glaucum, Hedw. Heaths and rocks. 



50. — heteromallum, Hedw. Heaths and banks. 



51. — squarrosum, Hedw. Sides of streams; always barren. 



52. — strumiferum, Ehrh. On fallen rocks (basaltic) at the base 

 of Holwick Scarr. The capsules appeared to have ripened prema- 

 turely (owing, probably, to the dryness of the season) and were for 

 the most part imperfectly formed. 



53. — varium, Hedw. Common. 



54. Didymodon Bruntoni, Arn. On basaltic rocks near the High 

 Force, Cronkley Scarr, &c. The habit of this moss is very similar 

 to that of Weissia cirrhata, along with which it grows ; but the cap- 

 sules of the latter were quite empty and dead, while those of the 

 former were only beginning to shed their opercula. 



55. — capillaceus, Schrad. Frequent, and in fine state, especially 

 on moist basaltic rocks near Winch Bridge. 



56. Encalypta ciliata, Hedw. On limestone rocks at the White 

 Force, below High Force and in Ettersgill beck. 



57. — streptocarpa, Hedw. Limestone rocks and walls, but 

 barren. 



58. Fissidens adiantoides, Hedw. (Dicranum, Muse. Brit.) Hagg 

 Syke. 



59. — bryoides, Hedw. Banks, chiefly in the lower grounds. 



60. — taxifolius, Hedw. Clayey and sandy banks. 



6 1 . Fontinalis antipyretica, L. In the Tees and its tributary streams. 



62. Funaria hygrometrica, Hedw. Frequent. 



63. Grimmia apocarpa, Hedw. Rocks and walls. In sandy spots 

 overflowed by the Tees, the var. rivularis grows with closely tufted 

 erect stems and leaves of extraordinary breadth. 



64. — pulvinata, Sm. On walls, &c. 



65. — spiralis, H. and T. Basaltic rocks at Caldron Snout and 

 Falcon Clints, where it fructifies very sparingly. 



