Jennings: Manual of Mosses— 34. Brachytheciaceae 303 



temperate regions; about 6 species in North America; probably only one species 

 in our region. 



1. EuRHYNCHiUM PULCHELLUM (Hedwig) Jennings 



(Hyptiiim pulcheUum Hedwig; H. strigosum Hoffmann; Eurhynchitim 

 strigosum Bryologia Europaea) 



Specimens collected by Nelle Ammons on Presque Isle may belong to this 

 species, but our region is represented mostly by the following varieties of this 

 species. 



la. EuRHYNCHiUM PULCHELLUM var. ROBUSTLJM (Roell) Jennings 



(E. slTtgosum var. rohtisliim Roell; Hyprium strigosum Drummond ) 



Common Beaked Moss 



Plate LVIII 



Loosely and widely matted or densely tufted, bright and shini;-ig green: 

 stems stoloniferous, creeping, with distant leaves; secondary stems prostrate to 

 erect, often curved, rather robust; leaves on the middle of the branches erect- 

 spreading, lance-ovate, scarcely decurrent, reaching about 1-1.2 ,x 0.4-0.5 mm, 

 acute to widely obtuse, plane-margined, sharply serrate above, concave, some- 

 what plicate, costate to about two-thirds, the costa usually ending in a dorsal 

 spine; median leaf -cells about 8-10:1, linear to linear-rhomboid, the apical 

 becoming rhomboid-oblong and about 2-3:1, the basal somewhat shorter than 

 the median, the alar few, rectangular to quadrate or oval; stem-leaves decurrent, 

 rather long-acuminate from an ovate to triangular-ovate base, somewhat larger 

 than the branch-leaves, reaching about 1.2-1.5 mm long, serrate nearly to the 

 base, costate to about two-thirds; paraphyllia small, rounded-ovate; leaves on 

 the stolons ecostate, triangular-ovate, small, acuminate: seta castaneous, 

 smooth, about 1-1.5 cm long, drying dextrorse above; capsule yellowish-brown, 

 cblong-ovate, about 2-3:1, more or less dorsally turgid or sub-arcuate, drying 

 slightly constricted below the mouth, inclined or almost horizontal, the urn 

 about 2 mm long; annulus 2-3-seriate; lid convex, slenderly rostrate, about 1.5 

 mm long; exothecial cells rounded-quadrate at rim, oblong-hexagonal to rec- 

 tangular below, incrassate; peristome-teeth hyaline and papillose at apex, below 

 dorsally cross-striolate, margined, plainly lamellate, strongly trabeculate, con- 

 fluent at base; segments narrow, nearly as long as the teeth, carinately split 

 between the nodes, yellowish, the basal membrane about two-fifths as high: 

 cilia 3, slender, hyaline, noc'ose, usually one or two of them nearly as long 

 as the segments; spores yellowish, incrassate, papillose, about .012-.014 mm, 

 mature in autumn. 



The species occurs on gravelly or sandy soil, rocks, roots of trees, etc , in 

 open woods in Europe, Asia, northern Africa, and from Arctic America to 

 northern United States. The variety rohuslum occurs from eastern Canada 

 south to Louisiana. 



Elk Co.: McMinn. (Porter's Catalogue). McKean Co.: Si.x pockets of specimens 



