19 



TABLE 1. Percent seed viability* of samples from Tr isetum 



canescens > T. wo If i i > and T. or thochaetum > Granite 

 Creek South site, TUN, R2^W, Section 15, Missoula Co., 

 Montana; inflorescences collected on 6 August 1986. 



Taxon 



Samp le Quarter section 



Viability < V. ) 



T . canescens 



SIC 



NE'/^SE'/4 



76 



T . wo 1 f i i 



SIW 

 S2W 



NE'/4SE'/4 



80 

 77 



T. or thochaetum 



SIO 

 S20 

 S30 

 S^O 

 S5Q 

 S60 



NE'/4SE'/4 



E'-JSE'/^ 



SE'/4SE'/4 



E''^SE'/4 



S 

 3 



a 





 

 



* - Tests conducted by the Montana State Seed Laboratory, 

 Montana State University, Bozeman, MT ; seeds tested with 

 tetrazolium, a chemical stain used to determine the number of 

 viable vs. dead seeds via a reaction with respiring tissue. 



