the Dil/enian Herbarium. 113 



bourhood of Snowdon, I am inclined to think it probable he was 

 deceive 1 by some old flowers of Erica vulgaris falling among the 

 Sphagnum. 



TONTINALIS. 



No. 2. Fontinalis minor, Linn, agrees exactly with specimens of 

 Iledwig's Tric/iostomumfontinalioides sent me from Germany. 



IIYPNUM. 



No. 4. Hi/pnum acacioides, Linn. — I could find no difference, 

 except in the shortness of the peduncles, a circumstance most 

 probably accidental, between this and Mr. Dickson's II. asple- 

 n hides. 



6. II. sylvaticum, Fl. Aug. seems, as Hedwig suspected, to be 

 merely a variety of the preceding number (H. denticulatum, Linn.) ; 

 and No. 9- differs in nothing but its darker colour. This last Lin- 

 naeus described in the Species Plant arum under the name of H. or- 

 nithopodioides, but evidently depended wholly upon Dillenius. 



19- A., which Hedwig supposed to belong to his H. crista 

 castrensis, appears to be his II. Jilicintim, and B. C. D. E. F. his 

 H. commutation : but I speak with much diffidence, not being at 

 all convinced that I understand the specific difference between 

 these plants. 



20. Dillenius has under this number joined Hed wig's H. crista 

 castrensis, and molluscum ; the former sent him by Haller, the 

 latter found in England. Linna-us, Hudson, and others refer all 

 this number to their II. crista castrensis; but it certainly includes 

 two very distinct species. 



24. Reference is made in the Species Muscorum to A. and B. of 

 this number only under II. rugosum; but by the Herbarium, Mr. 

 Dickson appears to be clearly right in referring the whole to that 

 species. 



vol. vii. Q 32. H.prolixum, 



