346 A MANUAL OF MOSSES 



Key to the Species. 



a. Stems without stolons, almost regularly pinnate; the acumination 

 about one-half as long as the body of the leaf: seta rough. 



1. C. piliferum. 



a. Stems with stolons, irregularly branched; the leaf-acumination 

 short: seta smooth. 2. C. Boscii. 



1. Cirriphyllum piliferum [Schreber] Grout. 



(Hypnuiii piliferum Schreber ; Eurhynchitmi piliferum Bryologia 



Europsea). 



Robust, in loose straggling patches, glossy yellow-green: 

 stems elongate, up to 10 or 15 cm. long, prostrate, creeping, 

 radiculose, more or less pinnate ; the ends of the stems and 

 branches of a paler shining green ; leaves concave, widely ob- 

 long-ovate, spoon-shaped, abruptly hair-pointed from the 

 rounded apex, the piliferous acumination often reaching one- 

 half the length of the main portion of the leaf, towards the 

 apex of the stems and branches the leaves more closely im- 

 bricate and forming cuspidate terete points, but with the pili- 

 ferous leaf-tips flexuous-spreading, leaf-margin usually slightly 

 denticulate, plane or infiexed; when dry the leaves striate; 

 median leaf-cells about 10-15:1, the basal more lax, shorter 

 and wider, the angular forming a well-defined patch, large, 

 oval-rectangualr ; the branch-leaves somewhat smaller, nar- 

 rower and more gradually pointed ; costa broad at base, reach- 

 ing to about three-fourths the length of the leaf: seta about 

 2.5 cm. long, rough ; capsule oval-oblong to turgid, somewhat 

 arcuate, when dry and empty strongly arcuate and constricted 

 below the mouth, about 2 mm. long ; lid conic with a subulate 

 beak about as long as urn, 2 mm. ; peristome large, teeth long, 

 the segments about as long, the cilia non-appendiculate, 2 or 

 3, about as long as the segments ; spores mature in fall but 

 capsules rarely found. 



In wet woods and swampy meadows, on the ground or 

 on the bases of trees; Europe, and from Greenland to Mary- 

 land and Ohio, also from Montana to California. Not common 

 in our region. 



Elk : Benezette. McMinn. (Porter's Cata- 



logue). 



McKean : D. A. Burnett. (Porter's Catalogue). 



2. Cirriphyllum boscii (Schwaegrichen) Grout. 



(Hypnttm boscii Schwaegrichen; Eurynchium Boscii Jaeger). 



(Plate LIT) 



Loosely cespitose in large, golden-green mats, the older 

 portions blackish, robust : stems up to 8-10 cm. long, prostrate, 

 somewhat pinnately branching, the branches mostly simple, 

 erect, turgid-terete; leaves closely to loosely imbricate, large, 



