OF WESTERN PENNSYLVANIA 243 



obtuse, acute, or rostrate ; calyptra cucullate, smooth ; spores 

 small. 



About 30 species confined to the Northern Hemisphere ; 

 10 in Xorth America: 5 species in our region. 



l\ev to the Species. 



a. Slender and flagelliform branches present: annulu- none, teeth 



striate. 4. A. attenuates. 



a. Slender and flagelliform branches none: annulus present. 



b. 

 b. Teeth striate: leaves with a hyaline, piliferous-subulate acttmi- 



nation. 5. A. restrains. 



b. Teeth papillose, non-striate: leaf-acnmination not piliferous- 



acuminate. c._ 



c. Leaves with rounded basal auricles, apex apiculate. 



1. A. apiculatus. 

 c. Leaves not auricled. d. 



d. Leaves not secund, the upper half of leaf oblong-lingulate: 



teeth nodose. 2. A. minor, 



d. Leaves more or less secund. lance-lingulate: teeth not nodose. 



3. A. viticulosus. 



1. Anomodon apiculatus Uryologia Europsea. 



(Lcskea apiculata W. P. Schimper : Hypniun rngclii C. Mueller). 



{Plate XXXIV) 



Cespitose in tangled mats, glaucous-green, reddish or 

 brownish when old: stems creeping, divided, the secondary 

 stems and branches straight or ascending: 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 

 funbriate-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 perichsetial leaves long-sheathing: seta 

 erect, about 5-7 mm. long, dextrorse above, sinistrorse below; 

 capsule erect or somewhat inclined, symmetric, ovate-cylindric, 

 about 2-2.5X0.5 mm., thick-walled, castaneous. longitudinally 

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

 small: peristome double, the teeth lance-linear, nodose-articu- 

 late, faintly papillose, the dorsal lamellae and divisural usual- 

 ly very faint or invisible, the segments rudimentary, 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 Xew England to Ontario and Georgia. Rare in our 

 resrion. 



