— 130 — 



3. Adunca. 



A. Tufts densely cobering. Leaves not decurrent; alar cells 

 email or indistinct. Dioecious r. fruiting. 



a. Angular leaf-cells finally red, the alar often distinct; 

 costa often short and double. 



lO.H.Bambergeri Schimper. — H. brevifolium Lindb.; H. 

 flexuosum Berggrcn. 



Leaves falcate, from ovate or broad-ovate base tapering to a 

 longer or shorter acumen, entire and crowded; upper cells linear. 

 Capsule arcuate not large; lid apiculate; pedicel not long. Tufts 

 either green, sometimes glossy, or brown-green or brown-red. 

 — Swamps and wet rocks in alps r. Eur. Norway!; E. Adlerz 

 (fruiting). Amer. »GreenL»: Berggren. »Can.»: Lesq. et Jam. 



b. Alar leaf cells nearly indistinct, not red; costa simple. 

 ll.H.elodes Spruce. — Amblystegium Schimper. 



Leaves small us. straight, more or less distant; cells linear; 

 costa vanishing in acumen, not thick. Stem-leaves from short 

 broad base short-cuspidate or filiform-pointed, faintly denticulate 

 below. Branch-leaves narrowly ovate-lanceolate long-cuspidate, 

 faintly denticulate nearly all around, sometimes falcate. Cap- 

 sule small oblong-cylindric curved; pedicel short. Tufts blackish 

 or dark green, sparingly radiculose. — Eur. gen. r. Sweden, 

 Norway! 

 * H.densuni Milde. — Brachythecium Juratzka. 



Leaves smaller, more distinctly denticulate; cells often suboblong; 

 costa subexcurrent. Capsules not seen. — Eur. r. Austria: 

 Juratzka, and Germany: Arnold (herb. Hartman\ com. Acad. 

 Upsal. 

 12. H.subsecnndflm Kindb. rev. bryol. 1895. 



Leaves not large, nearlj- crowded, entire; cells linear, the 

 lower basal yellow; costa vanishing below acumen. Stem-leaves 

 from broad-ovate base short-acuminate; costa very thick. Branch- 

 leaves from subovate base (more or less graduallj-) long-subu- 

 late, subsecund when dry; costa thinner. Capsule arcuate; 

 pedicel short; teeth brownish. Stem creeping. — Amer. r. Can.: 

 White, com. Macoun; N. Foundl.: Waghorne. 



B. Tufts loose eradiculose. Leaves not or shortly decurrent, 

 gen. falcate; alar cells small, other cells linear. Capsule annu- 

 late. Dioecious r. fruiting. 



a. Leaves plicate when dry, not decurrent. Stem irregularly 

 divided. 

 IS.H.lycopodioides Schwaegrichep. 



