242 A MANUAL OF MOSSES 



branching with irregularly or pinnately arranged branches; 

 branchlets erect or curved-ascending ; leaves about 0.5-0.8 mm. 

 long, appressed when dry, more or less squarrose-spreading 

 when moist, mainly narrow lingulate from an ovate base, con- 

 cave, sub-clasping, crenulate on the plane margins by the large 

 and protuberant cells, apically acute to short-apiculate or ob- 

 tuse, the apex of the leaf very often broken off in the dried 

 specimens; costa slender, ending in the middle of the leaf; 

 median leaf-cells oblong-rectangular, about .011-014 mm. in 

 diameter, thin-walled, pellucid, the upper more or less rounded- 

 hexagonal, the lower marginal transversely oblong-hexagonal, 

 the lower median often radiating from the basal part of the 

 costa in a characteristic manner : capsule unknown : leaf-cells 

 turgid and bearing several large papillse on each surface. 



On bases of trees and on steep, sunny rocks ; Europe, Asia, 

 and, in the eastern United States. In the Lesquereu.x and 

 James Manual the habitat is stated as particularly on the horn- 

 beam. Rare in our region. 



Clearfield : T. P. James. (Porter's Catalogue). 



McKean : Gates Hollow, Bradford, July 8, 1895. D. 



A. B. (Figured). 



4. ANOMODON Hooker and Taylor. 



Dioicous : more or less robust, stiff, loosely cespitose, 

 bright to blue-green, dull, later yellowish to brownish, the 

 mats mostly ochraceous inside : stem far-creeping, stoloniform, 

 small-leaved, radiculose, bearing ascending to erect, often 

 basally-stoloniferous secondary stems ; all leafy shoots having 

 rather uniform leaves, the branches sometimes flagelliform; 

 foliage-leaves 5-seriate, dense, rarely secund, when dry mostly 

 imbricated, little different when moist, lingulate from a broad- 

 ly ovate or oblong and little or not at all decurrent base, or 

 the upper part lanceolate to subulate, margins plane and entire; 

 costa strong, smooth, mostly ending below the apex; median 

 leaf-cells rounded-hexagonal, on both sides densely papillose 

 with one- and two-pointed papillae, rarely unipapillose over 

 the lumen, only the median basal elongate, smooth, rarely 

 rhombic; inner perichsetial leaves elongate, sheathing, above 

 similar to the foliage-leaves, or pale, spreading, lance-subulate, 

 with elongate cells : seta more of less elongate, drying t%\ isted, 

 smooth, straight; capsule erect, symmetric, oblong-cylindric, 

 rarely curved, not narrowed below the mouth; peristome- 

 teeth lance-linear, either pale, papillose, distantly articulate, 

 non-trabeculate, 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, 



