558 ME. W. MITTEN ON EUROPEAN AND NOBTH-AMEBICAN 



erect, oval. A minute species found on the roots of trees. 

 — Florida. 



21. F. Gtaeberi, Lesq. et James, Man. p. 26. Miuute ; areola- 

 tion obscure ; nerve pellucid ; iu the specimens examined with 

 James, the flowers were synoicous ; Austin thought it " pseudo- 

 dioicous." — Florida, 



22. F. Bloxami, Wils. in Lond. Journ. Bot. 1815, t. 9. — 

 F. exilis, Wils. Bry. Brit., Braithw. Brit. Moss-Fl. t. x. A. 



After Wilson had first published this species under the name 

 of F. Bloxami, he found on examination of the older herbaria 

 that it had been confused with F. exilis, which, when the simi- 

 larity in size is considered, is not surprising; yet although he 

 had distinguished his species by characters unknown to Hedwig 

 or Dickson, he determined to abandon it, notwithstanding the 

 existence of specimens of Bry urn viridulum with the entire leaves 

 as in Hedwig's figure. — Europe. 



23. F. Closteri, Austin, Sull. Icon. p. 41, t. 29. Very minute, 

 like F. Bloxami, but with leaves entire. — New Jersey. 



24. F. Arnoldi, Buthe, in Hedwigia, 1870, p. 178. " Dioica, 

 exilis, folia 8-10-juga ovato-oblique ligulata omnia non limbata 

 integerrima vel obsolete crenulata, capsula erecta ovata." This 

 may be one of the states of F. exilis. — Europe ; " in satis cal- 

 careis," Fl. Donau. 



25. F. Hallii, Austin, Lesq. et James, Man. p. 85. Size of 

 F. incurvus, from which it differs in its " immarginate crenulate 

 leaves, the longer lid, and dioicous inflorescence." — Texas. 



26. F. obtusieolius, Wils. in Lond. Journ. Bot. 1845, t. 9. 

 Very distinct in its rounded leaf-points. — Ohio. 



27. F. osmundoides, Redw., Braithw. Brit. Moss-Fl. t.xi.A. 

 Its lobed calyptra is unique in the genus. — Europe and North 

 America. 



28. F. htalintjs, Hook, et Wils,, Sull. Icon. p. 34, t, 21. One 

 of a small group with nerveless leaves. — United States. 



29. F. taxifolitjs, Hedw. and all authors.— Europe, North 

 America, N.W. India; said by Jiiger to be cosmopolite; but not 

 seen from the southern hemisphere. 



