434 REMARKS ON DRUMMOND's MUSCI AMERICAN!. 



the leaf. Perhaps No. 18, which has its leaves differently 

 marked, as to the reticulation, which is dotted, may also prove 

 to be distinct. 



21. G. tenue. — This may be G.calcareum, Bride), 75/'. Univ. 

 vol. i. p. 6b. — A solitary specimen examined had the opercu- 

 lum conico-subulate, two-thirds the length of the capsule. 



22. G. pusillum The writer is disposed to unite this with 



G. Donianum, as a dwarf variety. 



23. G. tortile All the specimens seen correspond very 



nearly with No. 24, G. rupestre, between which and No. 

 21, it is nearly intermediate. It is certainly not G. tortile, 

 Schwaesv. 



26. G. ciirvirostrum, var. minor. — This agrees well with 

 the description of G. tnicrocarpon, Hornsch. in Bridel, Br. 

 Univ. vol. i. p. 81, and may perhaps be distinct from G. 

 curvirostrwn. 



32. Splachnum rubrum. — Careful dissection of the apophy- 

 sis does not confirm the account given of its shape, which is 

 by no means spherical. It is probably disciform in an early 

 stage, becoming, as the capsule ripens, umbraculiform ; its 

 diameter is at least six times greater than its length. 



33. S. luteum. — Not distinct from the last, having serrated 

 leaves, althou2;h given as entire in Hedwitr's figure. 



35. S. spharicum. — This has the leaves of 5. ampullaceum, 

 and may perhaps be a variety of that species, if it be not S. 

 serratum, Hedw. Sp. M. t. 8. 



37. S. heterophyllum. — In many respects this Moss very 

 much resembles S. vasctdosum, of which it may be a local 

 variety, having a smaller apophysis. 



38. S. nrceolatum, 39, S. intermedium, and 40, S. mni- 

 aides — Concerning the first of these Bridel very justly re- 

 marks as follows: — " Prsecedenti [S. mnioid.) simillimum 

 nee limitibus satis certis ab eo separatum." — An intermediate 

 species must therefore be exceedingly difficult to identify. 

 Indeed S. intermedium has the leaves very much more like S. 

 sphtxriciim than like either of the species with which it is as- 

 sociated. 



