Table S1.

Location, elevation, and sampling information for populations in which pollen performance was evaluated in 2008.

Taxon	Population Name	Elevation (m)	GPS coordinates	Sampling Dates, 2008	# Flowers Pollinated
exilis	Stark Creek	443	35°28.27' N 118°43.55' W	April 26	138
	Willow Spring	365	35°40.23' N 118°54.13' W	April 22, April 25	62
unguiculata	Live Oak	430	35°28.81' N 118°44.89' W	May 9, May 12	197
	Jack and Stage	1006	35°47.75' N 118°42.16' W	June 3	157
parviflora	Long Valley	1607	35°48.54' N 118°05.34' W	June 10	176
	Wofford Heights	859	35°41.36' N 118°28.00' W	May 11	160
xantiana	Borel Road	707	35°35.04' N 118°31.30' W	June 2	157
	Camp 3	896	35°48.69' N 118°27.70' W	May 21	194