328 THE JOURNAL OF BOTANY 



assistance of Messrs. S. M. Mac vicar, H. H. Kniglit, and D. A. 

 Jones. The nomenclature adopted is usually that given in Miiller's 

 Die Lehermoose. 



PiiEissiA QUADEATA (Scop.) Nccs. On dry tundra, Bear Is. 

 Witli sporogonia. This is usualh^ a plant of moist situations, and 

 Mr. Summerliayes later informed me that the habitat was *' dry 

 tundra when compared with the mossj^ bogs and swamps." The 

 plant was collected on a gritty and rather steep slope (25-30 ft.) 

 with slight steps in it which were damper than the slope, and in 

 these damp depressions ^he Preissia occurred. 



Si'HENOLOBUS MiNUTUS (Crantz) Steph. Plants scattered 

 amongst Ptilidium ciliare and Lopliozia quinqiiedentata occurred 

 on damp slopes, 100-700 ft.. Prince Charles Foreland. 



LoriioziA QUINQUEDENTATA (Huds.) Cogn. This was often 

 present in the samples from Bear Is., Prince Charles Foreland, Advent 

 Bay, and Cape Boheman. In wet and flat bogs at Cape Boheman, the 

 form turrj ida {hm^h.), a larger plant with blunt postical lobes, occurred 

 in almost- pure masses. On the same ground mosses such as Aida- 

 comnium 2)alustre, Gamptotliecium nitens, Pahidella squarrosa, and 

 Hypnum stramineum, were present. Plants intermediate between 

 turgida and the type were present in the gatherings from the other 

 localities. The trigones varied in size, but usually they were large. 

 Judging from the materials siip})lied, L. quinquedeniata is the com- 

 monest and most widely distributed of the Lophozias. 



L. LTCOPODioiDES (Wallr.) Cogn. No typical plant was noticed 

 but only the var. ohliqua K. M. In this variety the leaves are 

 blunt and crisp, the cilia at the leaf -base are often absent, but those 

 on the underleaves are characteristic. Some leaves are scarcely 

 lobed, others are distinctly four-lobed, and a mucronate lobe and 

 basal cilia are occasionally present. Bogs, Hermansen Is. 



L. iiATCHERi (Evans) Steph. Rock-crevices, Bear Is. 



L. KUNZEANA (Hiib.) Evans. With Blepharostoma triclioplujUum 

 and Hypnum stramineum in bogs, Cape Boheman. 



L. TLOEEKii (W. & M.) Schiffn. On a rather steep slope, 25- 

 30 ft., Bear Is. 



L. ATTENUATA (Mart.) Dum. = Z. gracilis (Schleich.) Steph. 

 In small quantity on damp slopes. Prince Charles Foi-eland. 



L. LONorDENS (Lindb.) Macoun. Rock-crevices, Bear Is. and 

 Cape Boheman. 



L. VENTEICOSA (Dicks.) Dum. Specimens from rock-crevices, 

 Bear Is. and Cape Boheman seem best referable to this species, though 

 they are scarcely typical and lack the abundant and characteristic 

 gemmjB. In specimens from Prince Charles Foreland the gemma? 

 were characteristic. 



L. POEPiiYROLEUCA (Nees) Schiffn. In small tpantity with 

 Wehera nutans in rock-crevices. Bear Is. 



L. LONGTFLOEA (Necs) Schiffn. Among boulders, Bear Is. No 

 perianths were noticed, so that the determination of this plant rests 

 on vegetative characters only. 



L. ALPESTEis (Schleich.) Evans. Common and very variable in 

 the samples from rock-crevices, Bear Is., and damp slo])es, Frince 

 Charles Foreland, Gips Valley, and Advent Bay. Both Mr. Knight 



