198 THE ROYAL SOCIETY OF CANADA 
PRETTIE, R. D. 
“The relation of forestry to irrigation.” (From a western Canadian 
point of view). Can. For. Jour. XI: 280-283. Dec., 1915. 
REHDER, ALFRED. 
“The name of the hemlock spruce.’”” (A reply to Oliver A. Farwell in 
Bull. Torr. Bot. Club XLI: 621-629. The name Tsuga Canadensis is 
more correct according to the rules of nomenclature than Tsuga ameri- 
cana). Rhodora XVII: 59-62. Mar., 1915. 
RYDBERG, P. A. 
‘“Phyteographical notes on the Rocky Mountain region IV. Forests 
of the Subalpine and Montane zones.” (Includes Canadian habitats and 
species). Bull. Torr. Bot. Club. XLII: II-25. Jan., 1915. 
RYDBERG, P. A. . 
“Notes on Rosaceae, IX.” (Includes Canadian habitats and species). 
Bull. Torr. Bot. Club, XLII: 117-160. Mar., 1915. 
RYDBERG, P. A. 
“Notes on Rosaceae, X.’’. (Includes Canadian species and habitats— 
93 tentative hybrids). Bull. Torr. Bot. Club. XLII: 463-479. Aug., 1915. 
RYDBERG, P. A. 
“Phyteographical notes on the Rocky Mountain region V, Grasslands 
of the Subalpine and Montane zones.” (Includes Canadian species). 
Bull. Torr. Bot. Club. XLII: 629-642. Nov., 1915. 
SACCARDO, P. A. 
“Notae mycologicae.”’ (Includes Canadian species collected by John 
Dearness, London, Ontario). Ann. Myc. XIII: 115-138. 10 June, 
1915. 
SAUNDERS, CHas. E. 
“Report from Cereal Division.” (From 18 stations in Canada). Direc- 
tors Report, 1914, pp. 749-823. Ottawa, 1915. 
SHARP, SEYMOUR, S. 
“Notes on the determination of Rocky Mountain conifers.” (Includes 
western Canadian species. Determinations based on cross sections of the 
leaves). Torreya XV: 1-8. Jan., 1915. 
St. JoHN, HAROLD. 
“An insular variety of Solidago sempervirens.’ (S. sempervirens L., 
var. azorica (Hochst). has the cauline leaves sessile, ovate or deltoid- 
lanceolate, broadest just above the base tapering into a blunt attenuate 
tip). Rhodora XVII: 26, 27, Jan., 1915. 
ST. JOHN, HAROLD. 
“Rumex persicarioides and its allies in North America.” (Includes 
Canadian habitats for it and R maritimus and its varieties fueginus and 
athrix). Rhodora XVII: 73-83, f. 1-6. Apr., 1915. 
