JSTeckeracE/E.] 211 \Fontinalis. 



SYH.—Foniinalis gigantca Sull. in Sull. & Lesq. Muse, boreali Amer. exs. no. 224. 



Foniinalis Eatoni Sull. I.e. 224c. 



Fontinalis antipyretica var. gigantea Sull. Icones muse. 106, t. 66 (1864). Limpr. Laubm. 

 "1 655. 



Foniinalis antipyretica var. robusta Cardot in Rev. bry. 1882, p. 88. 



Hab.— Stream below Gordale scar, Yorkshire (_Prof. Barker). Millersdale and Cheedale, 

 Derbyshire {Holt). Near Aber, N. Wales {Dixon). 



Var. y. cymbifolia Nicholson. Journ. Bot. 1901, p. 427. 



Stems long and floating, hardly shining. Leaves only slightly triquetrous at 

 tips of growing shoots, soft, rather distant, shorter than in the type, oval concave, 

 indistinctly carinate, not auricled, obtuse at point, margins erect, cells shorter and 

 wider than in the type, rhomboidal. 



Hab. — In the Thames at Kew (F. Y. Brocas) Herb. Cardot. In the Ouse near Lewes, Sussex 

 (JV. E. Nicholson 1900). Ouse at Hemingford Grey, Huntingdonshire {Dixon 1901) ! ! 



M. Cardot considers that the European specimens of the var. yS differ from 

 the American, and belong to his var. robusta. Limpricht, on the other hand, 

 unites the two under the var. gigantea. Many other varieties are described by 

 authors. 



2. FONTINALIS GRACILIS Lindb. 



Dioicous ; slender, leafless at base, branches parallel with the stem, 

 pointed. Leaves incumbent, ovato-lanceolate, decurrent with flat margins, 

 mostly split along the keel. Capsule immersed up to the lid, longish oval, 

 bracts rounded. (T. CXXIII, A.) 



Syn. — Fontinalis gracilis Lindb. in Hedwigia vi, 39 (1867), et in Not. ur Saells. Faun. Fl. fenn. 

 foerh. ix, 274 (1868). Milde Bry. Siles. 276 (1869). Juratz. Laubm. fl. Oester.-Ung. 

 355 (1882). Limpr. in Raeenh. D. kr. fl. Laubm. ii, 658 (1894). 



Fontinalis subglobosa Wils. MS. (1869). 



Fontinalis antipyretica vax. gracilis Schimp. Synops. 2 ed. 552 (1876). Cardot in Monog. 

 des Font. 56 (1892). 



Dioicous; plants slender, 10 — IJ in. long, leafless at base, light or 

 dark green, glossy, the branches parallel with the steni, acutely pointed. 

 Leaves close erecto-patent or laxly incumbent, from a broad decurrent 

 base, ovato-lanceolate, rather obtuse, sharply keeled, concave with flat 

 margins, mostly split along the straight keel ; cells narrow, about 8 times 

 long as wide, elongated rhomboidal at apex, 2 — 3 stratose and orange at 

 base, at angles larger, brownish, quadrato-hexagonal, inflated. Perichaetia 

 mostly towards base of stem, bracts appressed, rounded, reaching to the 

 lid, the cells vermiform and rhombic ; capsule small, longish oval, narrowed 

 below mouth, sometimes ventricose on one side, reddish-brown ; lid 

 obtusely conic. Teeth of peristome when dry geniculate and incurved, 

 brownish-purple, lanceolate-subulate, united in pairs at point, not fenestrate, 



