288 A MANUAL OF MOSSES 



shorter towards the apex and towards the base, the alar few, 

 quadrate, sub-opaque, somewhat inflated, forming small, ill-de- 

 fined auricles which are somewhat decurrent : seta about 1-2 

 cm. long; capsule oblong or oval-oblong, orange-brown, 

 arcuate, rather short and thick, more or less horizontal, dark 

 Avhen dry, exannnlate ; lid orange-yellow ; peristome normally 

 hypnoid, teeth yellowish, segments scarcely carinately cleft, a 

 little longer than the 2 or 3 cilia ; spores mature in summer. 



On wet rocks, where often overflowed, especially in cal- 

 careous districts; Europe, Asia, and the northern United States 

 and Canada. Rare in our region. 



Huntingdon : T. C. Porter. ( Porter's Catalogue). 



McKean : D. A. B. (Porter's Catalogue). 



2. Hygrohypnum eugyrium (Bryologia Europaea) Brotherus. 



(Hypnum eugyrium Bryologia Europaea ; Amblystegium 

 gyrium Lindberg; Callicrgon eugyrium Kindberg). 



Widely cespitose in low, dense, usually sand-filled tufts, 

 lustrous, green to reddish to brownish : stems prostrate, often 

 leafless below ; branches numerous, erect or procumbent, usual- 

 ly from 0.5-1.0 cm. long; leaves wide-spreading when moist, 

 distinctly falcate-secund towards ends of branches, when dry 

 imbricate-erect and concave, thus giving the branches a turgid 

 appearance, oval-oblong, narrowed to the base, slightly denti- 

 culate towards the shortly acuminate acute apex, the margins 

 incurved towards the apex ; costa short, indistinct and double ; 

 median leaf-cells linear, somewhat incrassate, often somewhat 

 obtuse at ends, about 8-10:1, shorter at the apex, the alar much 

 enlarged and inflated, the marginal thin-walled, the inner ones 

 incrassate, hyaline to yellowish-brown, forming well-defined 

 and somewhat inflated auricles ; perichaetial leaves whitish, the 

 outer with flexuous spreading tips, the inner erect, long-acumi- 

 nate, often erose-denticulate at the apex, plicate : capsule short, 

 oval to oblong, cernuous, turgid, yellowish-brown ; peristome- 

 teeth yellowish, slender, strongly trabeculate ; segments cari- 

 nately cleft and about equalled in length by the 2 or 3 granu- 

 iose and nodose cilia; annulns usually 3-seriate ; spores ma- 

 ture in spring. 



On rocks in streams or along the banks where kept wet, in 

 hilly or mountainous and usually non-calcareous regions ; Eu- 

 rope, and from Newfoundland to Alaska and south to Georgia 

 and Colorado. In our region apparently represented only by 

 the following variety : 



