72 APLOPERISTOMI. [Grimmia. 



mond, however, finds it upon Tay side between Dundee 



and the Ferry. 



We do not hesitate to make the Gr. obtusa of Schwaegrichen 

 a synonym to this, since we have Mougeot and Nestler's speci- 

 mens, which precisely accord with our plant, as indeed does 

 Schwaegrichen's figure. From Gr. pulvinata it differs by not 

 having the fruitstalks curved at any time, by its smooth capsule, 

 and its narrow and gradually acuminated leaves. 



10. Gr. Doniana ; stems short, leaves lanceolato-subulate pro- 

 duced into long diaphanous hair-like points, their margins 

 incurved, capsule ovate, teeth of the peristome quite entire, 

 Ud shortly rostrate. (TAB. XIII.) 



Grhnmia Doniana. Smith, Fl. Brit. p. 198. Engl. Bot. t. 1259. 



Hobson, Brit. Mosses, v. 1. n. 27. Arn. Disp. Muse. p. 20. Hook. FL 



Scot. P. II. p. 129. 



Gr. sudetica ? Schwaegr. Suppl. t. 24. Funck, Deutschl. Moose, t. 



11. n. 10. 



HAB. On rocks in mountainous districts, rare. 



It must be confessed, the present species is so nearly allied 

 to the preceding, that, if great importance were not always 

 attached to the peristomes of Mosses, we should find it almost 

 impossible to distinguish them. Gr. Doniana is, however, a 

 very much smaller plant than Gr. ovata, and the leaves are of a 

 brighter, though still a dark green colour, larger in proportion 

 to the fruitstalks, which thus seem half immersed. The teeth of 

 the peristome we have never been able to find either perforated 

 or split ; on which account we quote, hesitatingly, the Gr. su- 

 detica of Schwaegrichen, which agrees well with our plant in 

 other respects. 



The lid, we may observe, is rather shorter and more obtuse 

 than in Gr. ovata ; but on this circumstance, much reliance can- 

 not, we fear, be placed. 



-\ t- Leaves destitute of a hair-like point. 



11. Gr. unicolor ; stems elongated, leaves erecto-patent lanceolate 

 obtuse rigid destitute of hair-like points, the margins in- 

 curved, capsule ovate, teeth narrow rather long mostly quite 

 entire. ( SUPPL. TAB. III.) 



