— 166 — 



above and denticulate below, r. nearly entire, ue. large and 

 papillose at back. 



4. Osmundoidei. Capsule terminal or (in F. taxifolius) 

 basilar. Leaves uniformly crenulate all around, gen. not large. 

 IV. Eu-Fissidens. Leaves unistratose limbate (in F. exiguus 

 sometimes not limbate), gen. small and entire or at apex faintly 

 denticulate. Capsule terminal or (in F. floridanus) lateral; lid 

 gen. rostellate (in F. rufuliis very short obtuse). 



I. Aneuron Kindb. 

 l.F.hyalinus Hooker et Wilson; Sulliv. icon. muse. 



Leaves entire in few pairs: lower very small, uppermost 

 suboblong subacute much larger; wings short sinuolate; cells 

 large round-hexagonal. Capsule oval-obovate or suboblong; lid 

 as long; teeth deeply cleft; calyptra conic covering only the 

 beak. — Moist rocky ledges r. Anier. »U. S. Ohio*: Sullivant. 



II. Pachyfissidens C. Mueller. 

 2.F.grandifrons Bride! . 



Leaves i-igid sublinear obtuse very densely crowded: cells 

 roundish; costa not percurrent. Tufts dense high. Dioecious. 

 Capsules unknown. — Wet calcareous rocks r. Eur. France! 

 Spain: Levier. Amer. Can.: Maconn. — • »The fruiting F. gran- 

 difrons fi'om Asia* Barnes and Limpricht is F. subgrandifrons 

 C. Mueller in Bot. Zeit. 1864. 



III. Aloma Kindb. 

 1. Camptodontii. 

 3.F.Closteri Austin; Sulliv. icon, muscor. 



Leaves entire short-ovate subacute often with wanting lamina, 

 very minute and pellucid. Capsule narrow subclavate erect or 

 inclined; lid rostrate. Calyptra mitriform or cucullate. Plant 

 minute. — On the ground r. Amer. »U. S.: AustiQ»: SuUivant. 

 4.F,pauperculus Howe. 



Leaves uniformly crenulate, suboblong or short-lanceolate 

 subacute, larger than in the last; cells chlorophyllose pellucid. 

 Capsule narrow subcylindric often slightl}' curved, cernuous. 

 Calyptra cucullate. Plants small not or very loosely tufted. 

 — Stony ground r. Amer. U. S. California: M. A. Howe. 



2. ObtusifoUi. 

 5.F.obtusifolius Wilson; SuU, ic. m. — P. Arnold! Ruthe. 



Leaves oval-oblong pellucid; costa not percurrent. Capsule 

 Buboval. — Wet sandstone or calcareous rocks r. Amer. U. S.: 

 Henry, com. Cardot. Eur. »Germany»: Limpricht. 



