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



153. Tetr aphis pellucida, Hedw. Hagg Syke ; Hell Cleft, &c. 



154. Tetrodont'mm Brownianum, Schwsegr. (Tetraphis Bi'owniana, 

 Grev.; H. and T.) On the underside of stones near Caldron Snout. 



155. Trlchostomumjlexicaule, Ji.RndS). (Didymodon,i?r«(/.) Abun- 

 dant, both on the limestone and basalt. This is a moss which I had 

 concluded from previous observation to be confined exclusively to 

 limestone and chalk formations ; but it certainly does not refuse to 

 grow on the basalt, in Teesdale. 



156. — rigidulum. Smith. (Didymodon rigidulum, Hedw.; H.and 

 T.y Near streams. 



The five following species are not included in Trickostomum^ 

 as liuiited by Brucli and Scliimper. 



157. Tr. aclculare, Beauv. Abundant. 



158. — fasciculare, Schrad. Frequent on rocks and stones. 



159. — heterostichuyn, Hedw. Rocks and walls. 



1 60. — lanuginosum, Hedw. Abundant. Among the mountains 

 the rocks and stones are frequently quite hoary with this moss. 



161. — microcarpum, Hedw. Falcon Clints ; scarce. 



162. Weissia acuta, Hedw. Plentiful on basaltic rocks by the 

 Tees at Winch Bridge and other places. 



163. — cirrhata, Hedw. On Holwick and Cronkley Scarrs. 



164. — controversa, Hedw. Banks. 



165. — curvirostra, H. and T. On walls and rocks, as well as 

 in moist sandy situations. 



166. Zygodon lapponicus, B. and S. (Gymnostomum lapponicura, 

 Hedw.; H. and T.) Fissures of basaltic rocks at Caldron Snout ; in 

 fruit. 



167. — viridissimus, Brid. (Gymnostomum viridissimum, H. and 

 T.) On trees between Barnard Castle and Middleton ; on rocks in 

 Balderdale. 



Hepaticce. 



1. Fegatella conica, Tayl. Near streams. 



2. Jungermannia albicans, L. Everywhere. 



3. — asplenioides, L. Frequent in the low grounds ; scarcely 

 ascending to the subalpine regions. 



4. — Bantriensis, Hook. MSS. Caule erecto vel udscendente, 

 subramoso ; foliis ovato-rotundatis, obtuse emarginatis, peri- 

 chsetialibus conformibus ; stipulis parvulis, lanceolato-subulatis, 

 integerrimis, basi 1-2 dentatis, bifidis, vel laciniatis ; fructu ter- 

 minali, calycibus subcjdindricis, ore angustiori tubulato ciliato. 



J. Bantriensis, Hook. MSS. olim*, J. bidentata, var. Brit. Jung, 

 Synops. p. 16. Suppl. tab. 3. 



On sandy deposits by the Tees and it.s tributary streams ; in the 



* I should have scrupled to retain Hooker's specific name, had it not 

 been already published by Liiidenberg and Nees in the ' Species Hepathi- 

 carum ' (as I am informed by Dr. Taylor) ; although these authors appear 

 to have been unacquainted with the plant, and to liave presumed on its 

 being distinct merely from Hooker's brief account of it. 



