22 GYMNOSTOMI. [ Gymnostomum. 



,3. gracile ; capsule oblong. 



HAB. Banks and walls. 



This is a species which varies much in the length of the fruit- 

 stalk, and also of its capsule ; but it may always be known by 

 its concave, obtuse, and piliferous leaves ; and especially by the 

 nerve of these, which in the upper part is furnished with a 

 single, and sometimes a double, large, oblong, membranous ap- 

 pendage, to the surface of which are attached minute greenish 

 bodies, probably gemmae. This peculiarity appears to have 

 been unnoticed by all preceding Muscologists, except Hedwig, 

 and that admirable author has both described and figured it in 

 his Stirpes Crypt. 



8. G. truncatulum; leaves ovate apiculate patent rigid entire 



nearly plane, capsule ovate or turbinate, lid obliquely 

 rostrate. (TAB. VII.) 

 a., capsule turbinate. 



Gymnostomum truncatulum. Hoffm. Germ. v. 2. p. 27. Turn. 

 Muse. Hib. p. 7. Smith, Fl. Brit. p. 1158. Engl. Bot. t. 1975. Hob- 

 son, Brit. Mosses, v. 1. n. 10. Drummond, Muse. Scot. v. 1. n. 12. 

 Hook. Fl Scot. P. II. p. 122. Arn. Disp. Muse. p. 10. 



G. truncatum. Hedw. St. Cr. v. 1. t. 5. Schwaegr. Suppl. v. 1. p. 

 19. Brid. Meth. p. 15. Funck, Deutschl Moose, t. 4>. n. 7. Nees et 

 Hornsch. Bryol. Germ. v. 1. p. 132. t. 9. / 6. Mouy. et Nestl. n. 11 4-. 



Bryum truncatulum. Linn Dill. Hist. Muse. t. 45. / 7. F K. 



/3. capsule ovate, or oblong. 



G. intermedium. Turn. Muse. Hib. p. 7. t. 1. f. . Smith, Fl. 

 Brit. p. 1159. Engl Bot. t. 1976. Funck, Deutschl. Moose, t. 4. n. 8. 

 Brid. Meth. p. 15. Neeset Hornsch. Bryol. Germ. v. I. p. 135. t. 9.f. 7. 



G. rufescens. Brid. Meth. p. 12. (fide Arn.). Nees et Hornsch. 

 Bryol Germ. v. 1. p. 121. t. 9./ 1. 



Dill. Hist. Muse. t. 45. /. 7. A E. 



HAB. On banks, walls, and in fallow-fields. 

 A variety of G. truncatulum^ with the stem branched in a 

 fasciculated manner, with six to eight branches, each branch 

 bearing a capsule, has been found both by Mr. Lyell, and Dr. 

 Greville. 



9. G. Heimii ; leaves lanceolate serrated at the point, lid ob- 



liquely rostrate. (TAB. VII.) 



Gymnostomum Heimii. Hedw. St. Or. v. 1. t. 30. Turn. Muse. 

 Hib. p. 9. Smith, Fl. Brit. p. 1162. Schwaegr. Suppl. v. \.p.2. Brid. 

 Meth. p. 15. Hobson, Brit. Mosses, v. 2. n. 8. Hook. Fl. Scot. P. II. 



