94 MONTANA AGRICULTURAL COLLEGE SCIENCE STUDIES. 



1899; Helena, June 15, 1899, E. X. Brandegee. 



Zizia aurea, Koch. Flathead-Brackett Cr. Divide, Aug. 18, 

 1899: Arrow Cr., R. S. Williams, Sept. 1886, Coulter & Rose, Cont. 

 Nat. Herb. 7:91. 



CORNACE^. 



Cornus Baileyi, Court. & Evans, Bot. Gaz. 15 137. This is the com- 

 mon dogwood west of the Divide, C. stolonifcra, Michx. being there 

 much mor,e rare. It is easily distinguished from the latter by its 

 larger size (often 8 feet or more high), brownish-green bark, 'pur- 

 plish only on the younger twigs; large (7 x 12 cm.), broadly ovate 

 leaves, somewhat woolly pubescent below, and fruit with a peculiar 

 broad flat seed. Forms with nearly orbicular flattened and pointed 

 seeds occur, but otherwise like the type. The seeds of C. stolonifcra 

 in Montana are nearly always strongly oblique. 



Belton, July 27, 1900; Troy, July 25, 1900; Columbia Falls, Sept. 

 1 6, 1892, R. S. Williams. 



ERICACE^. 



Gaultheria Myrsinites, Hook. Spanish Peaks, 8-9000 ft., Sept. 

 20, 1901, Jacob Vogel; Mt. Hyalite. 10,000 ft., Aug. i, 1902. 



Menzicsia urccolaris, Rydberg, Flora, 297, is M. glabclla, Gray. It 

 is clearly an error to refer nrceolaris to Montana. Collections made in 

 Dearly every part of the state fail to show it and the specimen Ryd- 

 berg cites (Kelsey, Granite, 1902) is good M. glabclla, Gray, though 

 its filaments are glabrous, like most other species of glabclla in the 

 state. The leaves and young parts of the true urccolaris are strigose- 

 hirsute, the leaves more acute and the flowers nearly twice as large 

 a?, in glabella. 



Phyllodocc hybrida, Rydberg and F. intermedia, Rydberg, Flora, 

 298, appear to be, as the author suggests, mere hybrids between 

 Bryant hus cnipctrifonnis. Gray, and B. glanduliflorus , Gray, as they oc- 

 cur only where these two species are growing together and their 

 characters are intermediate between them. 



Pyrola bracteata, Hook. ; P. rotundifolia bractcata, Gray. Easily 

 distinguished from P. uliginosa, Torr.. by its taller, red scapes, large 

 bracts and denticulate, acutish leaves. 



