POLLEN LOADS. 



125 



Table 87. — Composition and weight of pollen loads — Continued. 



Percentage 

 composition 

 of load. 



fChamaenerium angustifolium 1 



[Rosa acicularis 99 



Bombus morrisoni : 

 Cat. No. c 



Bombus proximus: 



p, . xt j (Rosa acicularis 99 



Uat. No. d \Chamaenerium angustifolium 1 



e Rosa acicularis pure 



f Rubus strigosus pure 



J Rosa acicularis 99 



g [Rubus strigosus 1 



Bombus rufocinctus: 



pi f XT i, /Solidago missouriensis 10 



• \Petalostemon purpureus 90 



Chamaenerium angustifolium 50 



Petalostemon purpureus 50 



Calochortus gunnisoni 90 



j -j Geranium caespitosum 2 



Composite 2 ; 



( Solidago missouriensis 10 



' ' Petalostemon purpureus 90 



Clisodon terminates 



