INDEX 227 



Willow; Salix — Continued 



undergreen ; S. commutata 40 



whiplash; S. caudata 32 



yellow; S. lutea 38 



Wmterfat, common; Eurotia lanata 181 



Wintergreen ; Gaultheria 



Oregon; G. ovatifolia 190 



western; G. humifusa 190 



Xylosteon. See Lonicera. 



U.S. GOVERNMENT PRINTING OFFICE : 1960 — 471 I 14 



