Table 1. Best-fitting linear models for aboveground biomass, belowground biomass, and the ratio of belowground to aboveground (root:shoot) biomass of the host and hemiparasite.

Plant	Biomass	Predictor	Estimatea	SE	t	df	P
Host (Bouteloua gracilis)	Above	GC	-1.03	0.213	-4.84	180	<0.00001
	Below	GC	-0.736	0.197	-3.74	179	0.000252
		T	0.641	0.186	3.45		0.000691
	Root:Shoot	GC	0.314	0.0993	3.16	179	0.00183
		T	0.426	0.0936	4.55		<0.00001
Hemiparasite (Castilleja sulphurea)	Above	GC	0.952	0.320	2.98	155	0.00334
		T	0.521	0.271	1.93		0.0560
	Below	GC	1.12	0.310	3.61	156	0.000417
	Root:Shoot	GC	0.557	0.211	2.64	154	0.00920
		T	-0.511	0.146	-3.51		0.000588
		GC×T	0.799	0.301	2.66		0.00876

GC, growing condition; T, temperature.

^aCoefficients for above- and belowground biomass are on a log scale; coefficients for root:shoot biomass are on a logit scale.