di\ JOURNAL OF THE ARNOLD ARBORKTUM [vol. i 



scales which soinetinies become reddisli brown at tlie obtuse «^pcx. They 

 are densely clothed with long silky hairs. There are ^2 stainens with free 

 filanienls whicli usual] v seem to be dabrous but occasionally bear a few 

 hairs al the very base; the glaiul is very long and almost linear, resembling 

 indeed that of S. viminalis L. Glands and bracts are alike in the two sexes. 



The ovaries are sessile, ovoid-ellipsoid, and bear a distinct filiform style 

 about 1 mm. in length which usually is bifid at apex and has small, narrow^, 

 more or less bifid stigmas. The shape of the stigmas is rather different from 

 that of tlic S. viminalis stigmas which are narrowly linear and much longer. 

 I am not conAnnced that S. Brcwcri is at all closelv related to the Viminales, 

 The species of this European-Asiatic section have dark fuscous bracts, 

 stouter nuile amcnts and longer petioles, and their leaves usually have a 

 very diiTerent kind of pubescence of silky shining hairs. Although I am at 

 ])resent unable to make a definite statement as to the real n^lationship of 

 8. Breireriy it seems best to regard it as tlie representative of a new section. 

 This Willow is an inhal>itant of the arid region of the Inner Coast Il^mge, 

 and I ha\c seen the following specimens. In the northwest corner of Cali- 

 fornia an apparently very closely allied form is found which I describe below 

 as S, del n art en si s\ 



Specimens Kxaauned: Califouxia. San Benit <> County: San Carlos' Moiui- 

 taiu, in a ravine, 1150 in.. July 23, 1H(G(VG2), J]\ 11. Brewer (No. 788, fr.; C; ro- 

 \y\)^^\ San Carlos Range, 1300 in.. May V2, 1907. W. L. Jepson (No. 2957, f., m.; 

 Jeps.) ; in tlie scmiarid section of the inner SouthCoast Range>li(>ad waters of San Be- 

 nito River, alt., 950 m., May 27, 1915, //. M. Hall (No. 9937, f., m., fr.; A.; "chnnps 

 1 in. high"); Hcrnaiulcz, April 11, 1903, L. M. Lathrop (m.; St.; amontis ad 3.5:0.0 

 cm. longis); near Hernandez, May 18, 1893, ,1. Eaafwood (fr.; Cal.); Cantna Creek, 

 nrar New Idria, May 19, 1893, A. Eastwood (ni., f., St.); Clear Creek, May 31, 1899. 

 U\ /?. Dudley (fr.; St.); above New Idria Falls, sann^ (kite and collector (ni., f., fr.; 

 St.); Trail to Ilepsadan Peak, June 2, 1899, IT. R. Dudley (fr.; St.). Santa (^lara 

 County: San Antonio Vallry, M;iy, 1903, A. D. E, Elmer (No. 4(U8, f.; M., St.). 

 N;[j)a County: ]\It. St. Helena, Mrs. Brandegrr (No. 1299, f.; C; mixed with 

 fruiting .S. la.siolcpis). Lake County: 3 mi. northwest of GltMihrook, Sweetwater 

 Valley, May 17, 1902, J. A. Giinn (m., f.; Si.; florihus juveiiilihus porro t)hs<_rvii.ndis, 

 femineis abnormalibus fere semper 2-3 connatis); ]\liddloton Grade, Just Ix'yond 

 Ml. St. Helena, on Ihe serpentine. May 5, 1893. U'. L. Jepson (No. 27% m,; Jops.); 

 iNlt. Ilannalu A, Eastwood (m.; Cal.; filamentis ex parte basi puullo c-oulitis, forma 

 incerla). Colusa County: Epperson. Mrs. BnntJegee (No. 18|, f.; C). 



2. S. delnortensis, spec. nov. — Frutex ut videtur habitu S. Brcwcri, 

 altitudiiie luihi ignota; rainuli hornotini dense breviter griseo-tomeiitosi, 

 etiam annotini plusniinusve angulati sordide ])urpurascentes, satis tomen- 

 telli, vetusliores plusniinusve glabrescentcs; geniniae perfecte evohitae nou- 

 duin visae, ut rami toinentosae et coloratae; folia tantuni juvenilia el semi- 

 matura satis chartacea visa, obovato-oblonga, obovata vel late obovata, 



h 



basi cuneata, apice obtusa ad rotmidata, subito brevissiine apiculata, ad 

 2.5:1-1.0 cm. magna, iiitegerrima, superne initio dense plusniinusve ad- 



^ Tliia Is In my opiiiloa itlcnlical with Santa Carlos Peak southeast of Idria. I luid an 

 opportunity to discuss this AVillow Avith Prof. L. R. Ahrams, who has kindly given valu- 

 able information about the vegetation of the Inner Coast Range. 



