[Reprinted from The Bulletin of the Torrev Botanical Club, Vol. 24, No. 5, May, 1897 ] 



Rarieties from Montana.— II. 



By p. a. Rydberg. 

 (Plates 304-307.) 



Polygonum Austinae Greene, Bull. Cal. Acad. 2: 212. 1885.* 

 This little interesting Polygonum was collected on the side of 

 one of the highest peaks of the Crazy Mountains, September 8, 

 1896, at an altitude of 8000 feet. 



Polygonum Engelmannii Greene, Bull. Cal. Acad, i : 126. 1884. 



This has hitherto only been collected in the higher mountains 

 of Colorado. It is not uncommon in central Montana at an alti- 

 tude of 6000 feet or more. Cottonwood Creek, July 30, 1896, 



*This and the next have been determined by J. K. Small. 



