150 HANDBOOK OF BRITISH MOSSES. 



more or less inclined, subsymmetrical ; lid obliquely rostrate. 

 The reticulation is quite different from that of any Hypnum. 



26. LEUCODOM", Schwceg. 

 Sporangium erect, symmetrical ; peristome erect, single, of 

 sixteen entire, perforated, or bifid teeth ; leaf-cells of margin 

 subrotund, of disk, elongated, disposed in lines; secondary 

 stems erect, with descending stolons at the base. 



1. L. sciuroides, Schwceff.; leaves crowded, densely imbri- 

 cated, erect when dry, spreading when moist, ovato-lanceolate, 

 acuminate, entire, plicate, nerveless; sporangium elliptic or 

 oblong; lid conical, acute; teeth of peristome perforated. — 

 Hook. % Wils. t. xx. ; Eng. Bot. t. 1903. ; (Plate 13, fig. 3) ; 

 Moug. 8f Nest. n. 321. 



On trunks of trees, walls, etc. Bearing fruit in spring. 



Bioicous; forming bright-green tufts. Stem creeping, 

 throwing up erect shoots, 2—3 inches long, often beset with 

 axillary buds, thickened at the end and incurved, rarely di- 

 vided ; leaves closely imbricated, erect when dry, spreading 

 when moist, and more or less secuud, ovato-lanceolate, but 

 varying greatly in breadth, strongly acuminate, entire, nerve- 

 less, plicate ; cells at edge round, more oblong in the centre, 

 disposed in rows ; fruitstalk ^ an inch long ; sporangium erect ; 

 lid conical, acute ; teeth nearly white, more or less perforated ; 

 ring soon breaking up. 



2. L. Lagurus, Hook. ; stem irregularly branched, tomen- 

 tose; leaves without strire, ovato-oblong, concave, suddenly 

 acuminate or piliferous, serrulate above, nerved halfway; 

 sporangium erect, cylindrical ; lid conical, with a short beak. — 

 Hook. Muse. Ex. t. 126. 



Var. /3, borealis ; stem not tomentose ; branches tumid ; 

 leaves auriculate and serrated at the base, more concave, more 



