60 CRYPTOGAMIA HEPATIC^. 



yellow or straw colour, but in shaded woods, often of a 

 grass-green : the effect of shade in this instance, and on 

 cryptogamous plants in general, being the reverse of that 

 produced in phanogamous plants. 



6. J. Trichomanis, stem creeping, simple or sparingly branched ; 

 leaves 2-rowed, adnate, semi-ovate, entire or slightly emarginate ; 

 stipules semilunate ; fruit lateral. (Tab. v. Fig. 5.) LIGHTF. Scot. 

 769. HOOK. Scot. ii. 116. J. scalaris, WITH. iii. 1065. Dill. 

 Muse. t. 31, f. 5. and 6. 



Hob. On mossy rocks, and in tufts of Sphagna, frequent. 



Depressed, grass-green, with obtuse leaves overlapping at 

 their edges ; but the variety found in tufts of Sphagna 

 and other bog-mosses, resembles the preceding in the straw 

 colour of its leaves, which are more widely set, more acute, 

 and of a looser texture. Our figure is taken from this va- 

 riety, which, in Berwickshire, is by much the commonest. 

 The apex of the stem is sometimes lengthened out, and 

 terminated with a cluster of pulverulent buds. 



7. J. heterophylla, stem creeping, branched ; leaves 2-rowed, ad- 

 nate, subquadrangular, entire, or obtusely emarginate ; stipules 

 divided in 2-4 segments ; fruit terminal ; calyx ovate. (Tab. v. f. 

 6.) SPRENG. Syst. Veg. iv. 224. Loud. Encyclop. No. 14980. 



Hob. On the decayed stumps of trees. Our specimens 

 were gathered by the Rev. A. Baird in the woods about 

 Twizel. Winter. 



Closely allied to J. Udentata, of which some have considered 

 it a variety. The stipules are small, and not shewn in our 

 figure, which is taken from a front view. The habitat 

 above given is, perhaps, the most northern in which it has 

 been found in this country, for J. heterophylla has not as 

 vet been introduced into the Flora Scotica. 



f- f -f- Leaves clasping the stem. 



8. T. barbata, stem creeping or erect, simple or branched near 

 the top ; leaves 2-rowed, vertical, inclining to one side, subqua- 

 drate, waved, and three or four lobed ; stipules laciniate, some of 

 the segments toothed. (Tab. v. f. 7.) HOOK. Scot. ii. 116. SPRENG. 

 Syst. Veg. iv. 223. Loud. Encycl. No. 14983. 

 3 



