FissiDENTACEiE.] 8i [Fissidens. 



I. FISSIDENS EXILIS Hedm. 



Syn. — Fissidens exilis Hedw. 1. t. Husn. Muscol. gall. 48, t. 15 (1884). 



Fissidens Bloxami Wils. 1. t. Mitt. Journ. Linn. Soc. Bot. xxi, 558 (1885). 



This no doubt was mixed up with F. viriduhs and pusilUis by the older 

 botanists, but Hedwig had the true plant as his remark on the leaves testify, 

 and he also sent specimens of it to Starke still preserved in his herbarium 

 (fide Limpricht). 



2. FISSIDENS EXIGTJUS Siilliv. 



Dioicous ; very small. Leaves 4 — 6-jugous, oblongo-lanceolate, 

 uppermost longer, not limbate or only faintly on the vaginant lamina, 

 nerved nearly to ap^x. Caps, erect, oblong-oval, lid conic-rostellate. 

 (T, XII.* E.) 



Syn. — Fissidens exiguus Svi^T-,iv.\n Mem. Amer. Acad. n. ser. iii, p. 60, t. 2(1848). Muse. 

 Allegh. n. 182. Mosses Un. st. 24 (1856). Icones muse. 36, t. 23 (1864). Lescj. 

 James Mosses N. Amer. 84 (1884). Mitt. Journ. Linn. Soc. Bot. xxi, 557 (1885). 



Fissidens viridulus Var. Lylei Wils. Bry. br. 304. 



Fissidens pusillus p- Lylei Braithw. ante p. 68. 



Fissidens incurvus Var. exignus Austin Muse, appalach. n. 103. Barnes Bot. Gaz. 

 1887, p. 6. 



Dioicous or autoicous ; very minute, densely gregarious, yellow- 

 green. Leaves 4 — 6-jugous, recurved when the stem is declinate at 

 base, oblong-lanceolate, rather suddenly acute-pointed, accrescent 

 upward, immarginate or with a faint limb to the duplicate lamina or 

 also to lower part of the other laminae, inferior lam. narrowing down- 

 wards and vanishing at base ; cells rounded. Caps, erect or slightly 

 inclined, oblong-oval, somewhat contracted below the mouth, lid conic, 

 rostellate. Male plant minute, short, bracts two, with a short ensiform 

 lamina. 

 Hab. — Stones in damp shady places. Fr. 9 — 2. 



Tilgate forest, on clinkers with F. incurvus [Mitten) ! ! Henfield {Mitten). The form 

 Lylei, Witney, Oxon (Boswell, 1878) ! ! &c. 



3. FISSIDENS MINUTULUS Stdliv. 



Dioicous and autoicous; very small. Leaves 5 — 8-jugous, upper 

 long, linear-lanceolate, acute, all narrowly limbate, nerved to apex. 

 Caps, erect or inclined oblong, lid conic, rostrate. (T. XII,* F.) 



Syn. — Fissidens minutulus Sulliv. in Mem. Amer. acad. n. ser. iii, p. 58, t. 2 (1848). Muse. 

 Allegh. n. 183. Mosses Un. St. 24 (1856). Icon. Muse. 37, t. 24 (1864). Lesq. James 

 Mosses N. Amer. 85 (1884). Mitt. Journ. Linn. Soc. Bot. xxi., 556. 



Fissidens bryoides Var. i & 2. Hook. Wils. in Drumm. Muse. Amer. Coll. \i., u. 39 & 40. 



Fissidens pusillus Var. madidus Spruce in Journ. Bot. iSSo, p. 361. Braithw. ante p. 68. 



Fissidens incurvus Var. minutulus Austin Muse. Appalach. n. 102. Barnes Bot. Gaz. 

 1887, p. 5. 



