INDEX 225 



Solanum dulcamara; bitter nightshade. _ 52 



Sorbus ( = Pyrus, in part); mountain-ash 



cascadensis; Cascades m 86, 135 



= S. sambucifolia of some authors in part, NOT Cham. & Schlecht. 

 = S. sitchensis of some authors in part, NOT Roem. 



occidentalis; western m 86, 135 



= Pyrus occidentalis 

 = Sorbus pumila 

 pumila. See S. occidentalis. 

 sambucifolia. See S. cascadensis and S. scopulina. 



scopulina; Greenes m 84, 135 



= Pyrus dumosa of some authors, NOT (Greene) Fern. 

 = S. sambucifolia of some authors in part, NOT Cham. &Schlecht. 

 = S. sitchensis of some authors in part, NOT Roem. 

 sitchensis. See S. cascadensis and S. scopulina. 

 Spiraea; spirea (also called hardhack, meadowsweet, and ste'eplebush) 

 arbuscula. See S. densiflora. 

 betulaefolia. See S. lucida. 

 cuneifolia. See S. menziesii. 



densiflora; subalpine s 58 



= 5. arbuscula 

 = S. helleri 

 discolor. See Holodiscus discolor. 



douglasii; Douglas s _--_ 58 



douglasii menziesii. See S. menziesii. 

 helleri. See S. densiflora. 



lucida; shinvleaf s 58, 128 



= "S. betulaefolia" of Amer. authors, NOT Pall. 



menziesii; Menzies s °8 



= S. cuneifolia 

 = S. douglasii var. menziesii 

 Spirea; Spiraea 



Douglas; S. douglasii 58 



Menzies ; S. menziesii - 58 



shinvleaf; S. lucida 58, 128 



subalpine; S. densiflora ■-- 58 



Squawapple ; Peraphyllum ramosissimum 74, 138 



Steeplebush; Spiraea 

 Sumac; Rhus 



skunkbush; R. trilobata »'. Jj»* 



smooth; R. glabra 84, 134 



Symphoricarpos; snowberry 



acutus; sharpleaf s 95 



= S. mollis of some authors, NOT Nutt. 

 acutus. See S. vaccinioides. 

 albus. See S. rivularis. 

 albus var. laevigatus. See S. rivularis. 

 albus var. mollis. See S. hesperius. 



hesperiu?; Washington s , 95 



= S. albus var. mollis of some authors, NOT Keck. 

 = S. mollis of some authors, NOT Nutt. 

 = S. pauciflorus of some authors, NOT Robbins. 

 mollis. See S. acutus and S. hesperius. 

 oreophilus. See S. vaccinioides. 

 paucifolius. See S. hesperius. 

 racemosus. See S. rivularis. 

 racemosus var. laevigatus. See S. rivularis. 



rivularis; Columbia s 95, 161 



= S: albus of some authors, NOT (L.) Blake. 

 = S. albus var. laevigatus. 

 = S. racemosus of some authors, NOT Miehx. 

 = S. racemosus var. laevigatus 

 rotundifolius. See S. vaccinioides. 



vaccinioides; whortleleaf s . 95, 162 



= S. acutus of some authors, NOT Dieck 



= S. oreophilus of some authors, NOT A. Gray 



= S. rotundifolius of some authors, NOT A. Gray 



