Vegetation is dominated by Artemisia tridentata and Aqropyron 

 spicatum . Aster scopulorum and Phlox hoodii are common forbs. 

 The Haynes Creek population is in central Lemhi County, Idaho, 

 approximately 30 miles west of Sheep Corral Gulch. It occurs on 

 a moderate southeast-facing slope at 5,100 ft (T19N R23E S2). 

 Mean July and January temperatures at Salmon, 15 miles northwest 

 at 3,900 ft, are 61.3° and 19.8°F respectively. Mean annual 

 precipitation is 9.93 in. Vegetation is dominated by Artemisia 

 tridentata . Aqropyron spicatum and Bromus tectorum. 



Field Methods 



Two permanent monitoring transects were subjectively located 

 at each of the study sites in early July, 1986 following methods 

 outlined in Lesica (1987) . At each site the transects were 

 parallel to each other and the slope and separated by ca . 30 ft. 

 Procedures for reading the monitoring transects are outlined in 

 Lesica and Elliott (1987) and Lesica (1987) . Each transect 

 consisted of 50 1-m^ quadrats placed along the transect line. 

 The position of each A^ scaphoides plant encountered in the 

 quadrats was mapped and classified for three traits: size, 

 inflorescence production, and fecundity. The classification 

 system and codes for these traits are as follows: 



1) Size Classes: 



S Very small plants with 1-3 leaves 



J Plants with 4-6 leaves 



M Plants with more than 6 leaves 



Plants that produced inflorescences were classified by the 

 fate of the individual inflorescences as follows: 



2) Inflorescence Production: 



A An inflorescence that produced no fruit 

 P An inflorescence that was removed by 



predation 

 I An inflorescence that produced at least one 



mature fruit 



3) Fecundity: the total number of mature fruit 



Plants that produced inflorescences were classified by using 

 combinations of the classifiers followed by numerics. For 

 example, a mature plant with 2 aborted inflorescences, 1 predated 

 inflorescence, and 3 fruit-bearing inflorescences with 10 fruits 

 would be recorded as A2-P1-I3-F10 . A complete record of all 

 plants recorded during the study is given in Appendix A. For the 

 purpose of analysis "S" and "J" plants constitute a small size 

 class, sterile "M" plants form the sterile size class, and all 

 reproductive plants form the third size class. Transects were 

 read on July 1-7, 1986-1992. 



