908] Botanical Notes ' 195 



BOTANICAL NOTES. 



By James M. Macoun. 



PiCEA Albertixa, S. Brown, Torreya, VIL 125. 



For many years Canadian botanists who have worked in 

 the Rocky Mountains have recognized a spruce that was refer- 

 able to neither P. Canadensis nor P. Mariana, and specimens 

 were repeatedly sent by Prof. Macoun to Dr. Sargent, to Mr. 

 Elweis and other tree specialists with the request that they 

 should name and describe what he was convinced was an un- 

 described species. All these authorities, however, jiersisted in 

 referring this very characteristic tree to P. Canadensis, and it 

 was left to Prof. Brown to describe it. He separates it from 

 the white and black spruces by the following characters: It 

 differs from P. Canadensis in the longer, strongly reflexed 

 sterigmata. shorter, broader and darker colored cones with 

 broadlv rounded scales and minute sharply angled bracts,, and 

 from P. Mariana in the lighter colored smooth twigs with longer 

 sterigmata, and light-blue or blue-green leaves, and cones \vith 

 broader, entire scales with angular tipped bracts. This is the 

 common spruce throughout the Canadian Rockies between the 

 Canadian Pacific Railway and Crow Nest Pass, growing generally 

 in low ground, and in the Bow River valley near the railway it 

 is the most abundant tree. Near the museum at Banff. 



Sagittaria cuneata, Sheldon. 



Dr. J. H. Faull has collected this species at Bond Lake near 

 Toronto for three successive years. Its occurrence, so far from 

 its known range, is remarkable, but there seems no doubt about 

 Dr. Faull's diagnosis being correct. 



Muhlenbergia Schreberi, Gmel. 



M. diffusa, Willd., Cat. Can. Plants, II. 194. 



Southwestern Ontario between Niagara and Amhcrstburg. 



Muhlexbergia texiuflora (Willd.) B. S. P. 



M. Willdeno-udi, Trin. ; Cat. Can. Plants, II. 195. 



Southern Ontario from Belleville (Macoun) west to Gait 

 {Herriot) . 



Muhlenbergia Mexicaxa, (Linn.) Trin.; Macoun, Cat. Can. 



Plants, II. 184. in part. 



Culms diffusely branched throughout from the base; 



panicles numerous, oblong-ovoid or subpyramidal, rarely linear, 



the base usuallv enclosed within the subtending leaf-sheath. 



