41 



ferring stream banks. It is a large plant in every way, and a 

 pretty sight when laden with the large clusters of creamy flow- 

 ers. How any one can can confuse with it even in the herbar- 

 ium these other species of quite different appearance and differ- 

 ent altitudinal and geographical range, seems strange to the field 

 worker. The precedent for confusing them seems to have orig- 

 inated with Torrey and Gray, who in Fl. N. Am. 1: 416, have 

 mixed them very much indeed, not even distinguishing between 

 discolor and dumosa^ and they seem to have had typical speci- 

 mens of both. 



Holocliscus saxicola 



Low shrub about lodm, high, much branched: bark on the 

 old branches grey, exfoliating on the growth of the second sea- 

 son, the young bark underneath brown; growth of the season 

 pale with woolly hairs: leaves broadly ovate, almost orbicular in 

 outline, somevvdiat cuneately narrowed into the very short, mar- 

 gined petiole, rounded and obtuse, not lobed, about i2mni. long 

 by lomm. in width, the teeth of the crenate margins blunt or 

 acutish tipped, rather bright green and sparingly pubescent 

 above, pale underneath with a short tomentum, as well as clothed 

 with longer hairs on the prominent veins: panicles lanceolate or 

 ovate-lanceolate in outline, sometimes idni. long by 5cm. wide 

 on young shoots: peduncles and pedicels pubescent with soft 

 spreading hairs: the ovate, acutish cab/x lobes less than 2mm. 

 long, pubescent, but less so than the peduncles and pedicels: 

 petals almost white, broadly ovate, blunt, 2mm. long: pistils 

 densely white bearded below, the hairs about as long as the 

 calyx. 



No. 7160, collected among gi'anite rocks at Donner Pass, 

 Nevada county, California, August 12, 1903, altitude 7000 feet. 

 It is abundant thereabouts, and occurs at considerably higher 

 elevations, as well as down to perhaps 6000 feet. In the Flora 

 Franciscana, 58, Professor Greene also confuses this with the 

 far notthern species discolor^ although he gives a character to 

 the leaves of "above the middle pinnately toothed or lobed, the 



