195 



SOME NEW MOSSES. 



(By Nils. C. Kindberg. Communicated by Mr. J. M. Macouii.) 



1. DicRANowEisiA OBLIQUA, Kindb., n. sp. 



Differs from D.crispula in the capsule being asymmetric, obliquely 

 curved, substrumose in a dry state, the leaves with an excurrent costa, 

 the perichetial ones being longer acuminate the peristomial teeth longer 

 subulate, cleft above. 



On rocks along Asulcan Creek, near the Asulcan Glacier, Selkirk 

 Mountains, B. C, Aug. 7th, 1890 (Macoun). 



2. DiCRANELLA poLARi.s, Kindb., n. sp. 



Tufts dusky green not shining, fuscescent below; stem 1-3 mm. in 

 height. Leaves rigid, nearly straight, erect-patent from the ovate- 

 oblong base narrowed to the subulate acumen, which is furnished with 

 2-3 indistinct teeth; lower marginal cells narrow, upper sub-oblong; 

 costa broad, often ^j of the lower part, faintly marked, filling the whole 

 acumen ; perichetial leaves larger, entire, broader at the base, with more 

 numerous marginal cells. Capsule asymmetric suboval, finally sub- 

 clavate, curved, smooth, short-necked, orange ; lid with a long oblique 

 beak ; peristomial teeth nearly entire, slightly cleft above, orange with 

 piler tips; annulvis not distinct; pedicel yellow, 10-12 mm. long. 

 Spores small, about 0.015 i^""^^- Calyptra short dimidiate. Dioecious. 



This species differs from D. heteromalla in its smaller size, the 

 rigid leaves, the broad costa (broader than in the European Metrleria 

 alpina, Schimp., and resembling it in habit) and the smooth capsule. 



St. Lawrence Island, Bjhring Sea, 15th August, i8gi (J. M. 

 Macoun). 



NcTE. — St. Lawrence Island, situated in N. Lat. 63°3o', W. Long. 

 170°, is a barren rocky island covered with a scanty growth of vegetation, 

 principally lichens of a few species. At the date of our visit there snow 

 s'.ill filled the ravines and covered the northern slopes. 



3. DiCRANELLA CERVICULATULA, Kindb., n. Sp. 



Agrees with Dicranella cerviculata in the strumose capsule, the 

 yellow padicel and the dioecious inflorescence, differs in the leaves not 

 suddenly acuminate, the cells short quadrate, only the inner basal 



