304 American Midland Naturalist Monograph No. 6 



collected on the ground, or on rocks in woods, near Bradford, May 13, 1893, to Septem- 

 ber 29, 1896 (figured). D.A.B. 



lb. Eurhynchium pulchellum var. praecox (Hedwig) New Combination 

 (£. stngosum var. praecox Husnot; Hypnum praecox Hedwig) 



Loose yellow-green mats; creeping and often stoloniferous; branches erect, 

 julaceous about 4-5 mm long; branch-leaves erect-ascending when moist, im- 

 bricate dry, decurrent ovate-cordate, acute to bluntly obtuse, serrulate all 

 around, more or less plicate; costa to % length of leaf, ending in dorsal spine; 

 median leaf-cells 6-8:1, apical short and wide, basal and alar numerous and 

 quadrate: seta about 1 cm long; capsule ovoid, somewhat curved, horizontal, 

 about 2:1; lid long-rostrate, 2/3 length of urn; cilia 1-3, nodose; spores .010- 

 .012 mm, ripe in autumn. 



Moist shady soil or rocks. New York, New Jersey, and eastern Pennsyl- 

 vania. 



Bedford Co.: Sulphur Springs. C.M.B. Sept. 29, 1940. 



8. Bryhnia Kaurin 



Dioicous: more or less slender, weak, widely and laxly cespitose, more or 

 less dark green, when old yellowish or brownish, rather dull: stem elongate, 

 procumbent, rhizoids fascicled, branching interruptedly pinnate, some of the 

 shoots in the middle of the tufts often erect and tree-like but later procumbent 

 and giving rise to new shoots; branches usually spreading to recurved, thm, 

 acute, mostly laxly-leaved; paraphyllia none; stem-leaves loosely imbricate, 

 more or less concave, irregularly plicate, triangular-cordate to lance-ovate from 

 a widely decurrent and non-auriculate base; shortly or more slenderly pointed, 

 plane-margined, finely serrate all around; costa simple, ending in or over the 

 leaf-middle, smooth; median leaf-cells incrassate, green, oblong-rhomboid to 

 oblong-hexagonal, the basal lax, a few alar rectangular; branch-leaves mostly 

 dorsally rough by projecting cell-angles, sharply serrate all around; costa often 

 ending dorsally in a spine; inner perichaetial leaves oblong, abruptly narrowed 

 to a reflexed-squarrose, long, serrate acumination: seta 8-15 mm, dark red, 

 very rough; capsule cernuous to horizontal, dorsally gibbous, oval to oblong- 

 cylindric; annulus present; peristomes of equal length, the teeth basally con- 

 fluent, dorsally cross-striate, normally lamellate, apically papillose; inner peri- 

 stome yellow, finely papillose, basal membrane high, segments lanceolate, long- 

 subulate, split and finally gaping along the keel, cilia well-developed; lid more 

 or less plainly and thicky sub-rostrate from a conic base; calyptra glabrous. 



A small genus of 10 species, occurring on various substrata, confined to the 

 Northern Hemisphere; 3 species in North America; 2 species in our region. 



Key to the Species 



A. Branch-leaves acute to short-pointed, the apex mostly twisted 1. B. novae-angliai 



A. Branch-leaves acuminate, the apex not twisted 2. B. graminicolor 



