Jennings: Manual of Mosses — 29. Leskeaceae 199 



rarely rhombic; inner perichaetial leaves elongate, sheathing, above similar to 

 the foliage-leaves, or pale spreading, lance-subulate, with elongate cells: seta 

 more or less elongate, drying twisted, smooth, straight; capsule erect, sym- 

 metric, oblong-cylindric, rarely curved, not narrowed below the mouth; peri- 

 stome-teeth lance-linear, either pale, papillose, distantly articulate, non-trabe- 

 culate, or yellowish, striate and weakly trabeculate; inner peristome finely 

 papillose, with basal membrane low, carinate segments filiform, entire, often 

 attached apically to the columella, cilia rudimentary or, mostly, none; lid 

 conic, obtuse, acute, or rostrate; calyptra cucullate, smooth; spores small. 



About 20 species confined to the northern Hemisphere; 10 reported for 

 North America; 5 species in our region. 



Key to the Species ' 



A. Slender and flagelliform branches present: annulus rudimentary or none, teeth striate 



4. A. atteniiatus 



A. Slender and flagelliform branches none: annulus present or absent .. R 



B. Teeth striate: leaves with a hyaime, piliferous-subulate acumination .-..5. A. rostratus 



B. Teeth papillose, non-striate: leaf-acumination not piliferous-acuminate C 



C. Leaves with rounded, fimbriate-papillose basal auricles, apex apiculate 1. A. Rtigelii 



C. Leaves not auricled D 



D. Leaves not secund, the upper half of leaf oblong-lingulate: peristome segments 



short or none 2. A. minor 



D. Leaves more or less secund, lance-lingulate: peristome segments at least '/2 the 



length of teeth 3. A. riticulosus 



I. Anomodon Rugelii (C. Mueller) Keissler 



(A. apiculatus Bryologia Europaea; Leskea apxulata W. P. Schimper; 



Hypnum Rugelii C. Mueller) 



Plate XXXVIII 



Cespitose in tangled mats, glaucous-green, reddish or brownish when old: 

 stems creeping, divided, the secondary stems and branches straight or ascend- 

 ing; leaves 1.5-1.8 mm long, more or less obscurely two-ranked, abruptly 

 oblong-lingulate from an ovate or oblong-ovate and broader base, the base 

 non-decurrent but with very large and broadly rounded fimbriate papillose 

 auricles, the apex often apiculate, the upper margin broadly incurved, the 

 leaves when dry crispate; costa pellucid, ending considerably below the apex; 

 leaf-cells opaque, chlorophyllose, minute, rounded, papillose on both faces, the 

 median basal elongate, smooth, the alar somewhat larger, rounded-quadrate; 

 inner perichaetial leaves long-sheathing: seta erect, about 5-7 mm long, dex- 

 trorse above, sinistrorse below; capsule erect or somewhat inclined, symmetric, 

 ovate-cylindric, about 2-2.5 x 0.5 mm thick-walled, castaneous, longitudinally 

 many-plicate when dry; annulus none; lid conic-acuminate, small; peristome 

 double, the teeth lance-linear, nodose-articulate, faintly papillose, the dorsal 

 lamellae and divisural usually very faint or invisible, the segments rudi- 

 mentary, or very short, from a low basal membrane; spores mature in autumn, 

 medium-walled, brownish, papillose, about .009-. 012 mm. 



On shaded rocks and bases of trees or on decayed logs, in woods, mainly 

 in mountainous districts; Europe, Asia, and from New England to Ontario 

 and Georgia. Rare in our region. 



