FissiDENTACE^.] 84A [Fissidefts. 



12. FISSIDENS OSMUNDOIDES (Swariz) Hedw. 



Ante p. 73. Found richly in fruit at Kinder SiCOvA (Whitehead and Holt 1883). Tintwistle, 

 Cheshire {Whitehead). 



13. FISSIDENS SERRULATTTS Bnd. 



Ante p. 75. HusN. Muse. gall. 52, t. 16 (1884). Bottini Ricerche briol. nell'Isola 

 d'Elba 25 (1886). 



Fissidens Langei De Not. Mitt. Journ. Linn. soc. Bot. xxi, 559. 



The Marquis Bottini, in the paper quoted, has exhausted the subject of 

 th,e various forms of this species, and shown conclusively that F. Langei, 

 which is the British form, must be retained under F. serrulatus, having also 

 terminal setas, and differing only by its papillose leaves with a colored margin 

 of about 4 rows of cells, but which is variable in tint and extent. He also 

 regards F. polyphyllus as a variety, a view with which at present we do not 

 coincide. 



14. FISSIDENS TAXIFOLIUS (L.) Hedw. 

 Ante p. 77. Mitt. op. c. 558. 



15. FISSIDENS CRISTATUS Wils. 



Syn. — Fissidens cristatus Wils. in Kew Journ. Bot. ix, 294 (1857). Mitt. Journ. Linn. soc. i, 



Suppl. 137 (1859). 

 Fissidens decipiens De Not. ante p. 76. Husn. Muse. gall. 51, t. 16 (1884). Barnes in 



Bot. Gaz. 1887, p. 27. 

 Fissidens adiantoides Mitt, in Journ. Linn. soc. Bot. xxi, 559 (1885). 



Although Mitten refers this species to F. adiantoides of Hedwig, I look upon 

 that name as already occupied by the plant of Linnaeus, certainly the same 

 as that usually so called ; and although Hedwig's figure does look more like the 

 present plant, I do not think it conclusive, for F. adiantoides (L.) is usually 

 dioicous. Dr. Spruce finds a tall form with distant narrow, slightly crisped 

 leaves, growing on grassy hillocks under shade of Rosa spinosissima at Coneys- 

 thorpe, which is identical with one found in Bhotan by Wallich. The 

 species is widely distributed throughout the whole northern hemisphere. 



Var. (i. brevifolius Lindh. 



Leaves dense, about half the length of those in the typical form, the 

 serratures less distinct or almost obsolete, the pale border narrower. 



Hab. — Near O'Sullivan's hotel, Killarney {Lindberg 1873) ' ' 



16. FISSIDENS ADIANTOIDES (L.) Hedw. 



Ante p. 78. JURATZ. Laubm. oesterr.-ung. 65. Husn. Muse. gall. 52, t. 16. 

 Fissidens majus Mitt. Journ. Linn. soc. Bot. xxi, 559 (1885). 



Var. 13 collinus Mitt. 



Autoicous ; short, tufted i — 1| in. -high, erect. 



