53 



Tlierofon iiiteriiiedimii (Piper) 



Boykinia major intermedia Piper, Erythea, '?: 172. 1899. 



The type was collected by F. H. Lamb, No. 1267, at New 

 London, Chehalis county, Washington, June 10, 1897. Profes- 

 sor Piper compares this rather with T. elatum {Boykinia occi- 

 dentalis) and suggests a hybrid origin. He does not state 

 whether the two suspected parents grow in the vicinity where 

 T. intermedium was collected. In his Flora of Northwest Amer- 

 ica Mr. Howell does not record T. majus from Washington, but 

 only from Oregon and California. 



tj liiitkea ciiierasceiis (Piper) 



Spiraea cinerascens Piper, Erythea, t: 171. 1899. 

 Collected by A. D. E. Elm.er on basalt bluffs of the Colum- 

 bia river, twelve miles south of Chelan, Vx/'ashington. 



1/ Kosa, piiietoriiiii 



Stems slender, clustered, erect, sparingly branched, 6-8dm. 

 high, usually densely prickly below, the prickles very slender, 

 rather weak, straight, about 5mm. long, with scarcely dilated 

 base, or with occasional stouter ones icm. long with enlarged 

 base, these large ones principally upon young shoots: leaves 

 glandless, somewhat coriaceous, either elliptical-ovate or almost 

 orbicular, the larger nearly 3cm. long, over •2cm. wide, sharply 

 serrate except at the rounded or truncate base, the lower serra- 

 tures usually gland tipped; or the smaller leaves with somewhat 

 cuneate base, deep green and glabrous above, beneath paler and 

 somewhat pubescent, especially on the veins, of which the mid- 

 vein only is prominent but not pale; rachis prickly and some- 

 what glandular, the glands stalked; stipules entire, acute, usu- 

 ally glandular on the margin: flowers commonly solitary, some- 

 times two or three in a corymb: calyx lobes about 2cm. long, 

 lanceolate, sometimes broadly so, the margins densely ciliate 

 with white woolly hairs, either glandular or smooth: the slender 

 tip commonly enlarged and foliaceous: corollas deep rose-purple, 

 about 4cm. across, the petals somewhat notched: ovary globose, 

 smooth and o-labrous. 



