222 HEPATIC^. 



when growing with S. or nitltopodi aides (With.) {^S. plani folia, ^qq)V.\ 

 but is distinguished from it by being rather more slender, more 

 erect, and not in layers, as that species usually is ; lower lobe 

 smaller, recurved, whilst in 8. ornifhopodioides it is flat and spread- 

 ing, giving this latter plant a compressed appearance. Under the 

 lens the long irregularly spinous cilia at once distinguish it, for, 

 although the cilia vary in size in S. ornithopodioides on different 

 stems, they are always regular and straight, never curved, as they 

 frequently are in 8. nimhosa. The upper lobe is concave from the 

 sides being inflexed, with the point incurved ; it is not appressed 

 to the stem, nor should I consider the lower lobe so much deflexed 

 as to give the shoots a squarrose appearance, as they have been 

 described." 



Description of Plate LXXXVII. — Fig. 1. Plants natural 

 size. 2. Portion of stem, antical view x 16. 3. Portion of 

 stem, postical view x 24. 4. Leaf, antical lobe x 24. 5. Leaf, 

 postical lobe x 24. 6. Portion of leaf x 290. * (All Brandon 

 Mt., Dr. Taylor, 1813.) 



9. Scapania nemorosa (Z.), Bum. 



Jungermania nemorosa, foliis acutioribus, auritis, tenuissime denticidatis, Mich. 



Nov. pi. gen. p. 7, t. 5, f. 8 (1729). 

 Lichenastrum auriculatum, pinnis minoribus, crenatis, Dill. Hist. Muse. p. 490, 



t. 71, f. 18(1741). 

 Jungermania nemorosa, Linn. Sp. pi. 1 ed. p. 1132 (1753). 

 Martinellius nemorosa, Gr. & B. Nat. Arr. Brit. pi. 1, p. 602 (1821), 

 Radula nemorosa, Dum. Comm. Bot. p. 112 (1823). 

 Scapania nemorosa, Dum. Recueil, p. 14 (1835). 



Dioicous, laxly csespitose, medium size, green to greenish- 

 brown colour. Stems simple or sparingly branched, ascending or 

 erect; radiculose, rootlets few, hyaline; firm, red to dark brown, 

 outer layer of cells dark brown, inner white. Leaves transversely 

 inserted, slightly ascending, lower leaves somewhat distant or 

 contiguous, upper imbricate, bifarious, alternate, margin ciHate- 

 dentate, unequally bilobed to about the middle, antical lobe about 

 half the size of the postical, cordate, acute, incumbent, postical 



