

198 BOTANY OF THE DEATH VALLEY EXPEDITION. 



loy of the Kaweah, specimens being collected in the valley of the South Fork of 

 Kern River (No. 1028), between Kernville and llavilah (No. 1103), and on the hill- 

 sides near Fort Tejon (No. 1152). 



Castanopsis chrysophylla (Hook.) FJ. Bor. Amer. ii. 159 (1838), under Cas- 

 tanea— Dougl. MS.; DC. in Seem. Journ. Bot. i. 182 (1803). Type locality, "on the 

 Grand Rapids of the Columbia, to Capo Orford, and near Mount Hood." 



In the black pine belt of the Sierra Nevada, both in the valley of the Kaweah River 

 (No. 1380) and in the valley of the North Fork of Kern River. 



SALICACEiE. 



Salix by M. S. Bkbb. 



Salix barclayi Anders. Sal. Bor. Amer. 06 [20] (1858). Type locality, "in America 

 boreali-occidentali : Kodiak." 



The distribution of this species is from the Sierra Nevada (No. 1572) and the, moun- 

 tains west of the Great Basin northward along the Caseade and Coast ranges to Alaska. 

 Dr. Andersson's descriptions, necessarily drawn from inadequate material, are all more 

 or less inaccurate and misleading, but there can be no question as to the identity of 

 the type specimen in the Kew Herbarium. Taken throughout its entire range the 

 species, as a whole, exhibits a degree of variation remarkable even among willows, 

 vacillating, as it were, between A', cordata and S. glauca, and might, perhaps more 

 reasonably, be regarded as a group of several ill-defined species, in which category 

 should be placed S. valiformca Bebb, of the Botany of California., and S. commutata 

 Bebb, of Notes on North American Willows in [Jot. Gaz. xiii. 110 (1888). S. oonjuncta, 

 of the same paper, does not differ from the Alaskan type. 



Salix flavescens Nutt. Sylv. i. 65 (1842-53). Type locality, *' in the range of the 

 Rocky Mountains." 



Collected near Mineral Kinj;- in the Sierra Nevada (No. 1111). The species ranges 

 from California and New Mexico northward to British Columbia and along the coast 

 to Alaska. 



Salix glauca villosa (Hook.) Fl. Bor. Amer. ii. Ill (1838), as S. riUom; Anders. 

 Sal. Bor. Amer. 68 [22] (1858). Type locality, "Rocky Mountains * * # to the 

 Arctic Sea-coast." 



Between Mineral King and Farewell Gap, Sierra Nevada (No. 1561). It occurs most 

 abundantly about the headwaters of tho Saskatchewan River, but is widely dis- 

 tributed in Britisb America, in the Rocky Mountains, and eastward north of lati- 

 tude 50°. Southward within the United States it has not been found west of the 

 Qreat Basin, except on Mount Hoffmann and Woods Peak by Professor Brewer, :\tid 

 on Mount Whitney by Professor Rothrock. To these localities the present collec- 

 tion, after the lapse id' more than ten years, adds a third in the same region. The 

 identity of the earlier collections of Brewer and Rothrock with the plant of the 

 Rocky Mountains was somewhat doubtful. The leaves were very narrow, attenuate- 

 pointed, and somewhat falcate, scarcely paler beneath, and covered alike on both 

 sides with a minute pubesenee; and these peculiarities seemed to ^;iin increased 

 significance from the fact that in a still more marked degree they characterized Dr. 

 Watson's No. 1099 (Bot. King Exped. 325) from the East Humboldt Mountains, 

 collected at an altitude of 2, 750 meters. But in the specimens of the present, collection, 

 precisely similar as they are to those collected on tho mountains of Colorado, we 

 have indubitable evidence that S.fllauca villosa, after keeping exclusively east of the 

 Great Basin to the extreme southern limit of its range, does, nevertheless, find a rare 

 lodgment in a few of the highest peaks of the Sierra Nevada. 



Salix laevigata Bebb, Amer. Nat. viii. 202 (1871). Type localities, "Santa Cruz," 

 "Ukiah," "Alameda County," points all in California. 

 This species was collected at Lone Willow Spring (Nos. 169, 1872), and near 



