72 JOURNAL OF THE ARNOLD ARBORETUM [vol. hi 



Sect. Xlf. Cordatae Barratt. — Sec Schneider in this Jour. n. 185. 



54. S. irrorata Andersson. — See Schneider in this Jour. n. 186. 



55. S. lasiolepis Bentham. — See Schneider in this Jour. n. 187. 



55b. S. lasiolepis var. Bigelowii Bebb. — See Schneider in this Jour. n. 



188. 



55c. S. lasiolepis var. Bakeri Ball in Bot. Gaz. lxxi. 436 (1921). — See 

 also Schneider in this Jour. n. 188 (1922). 



56. S. ligulifolia Ball. — See Schneider in this Jour. n. 188. 



57. S. cordata Muhlenberg. — See Schneider in this Jour. n. 189. 



571). S. cordata var. angustata Andersson. — See Schneider in this 

 Jour. ii. 190. 



58. S. missouriensis Bebb. — S. cordata var. missouriensis Mackenzie & 

 Bush in Mackenzie, Man. Fl. Jackson Co., Mo. 69 (19(H).— See Schneider 



in this Jour. n. 190. 



59. S. mackenzieana Barratt.— See Schneider in this Jour. n. 190. 



59b. S. mackenzieana var. lixacrogemma Hall. — See Schneider in this 

 Jour. it. 191. 



60. S. lutea Nuttall. — See Schneider in this Jour. n. 191. l 



60a. S. farrae Ball apud Standly in Contr. U. S. Nat. Herb. xxn. 

 321 .(1921). This new species represents a Willow from the "Rocky 



Mts. of southern Alta. and B. C. and northern Mont." "Frequent on 



the eastern slope at middle altitudes or about timber line; in bogs or wet 



meadows." It seems to be most closely allied to S. lutea the variations 

 or which we are far from knowing sufficiently. I suppose that Ball has 

 already published a good description of his new species because his state- 



ments in Standley's Flora are very incomplete. I do not know what 

 Willow he really has in mind. 2 



61. S. monochroma Ball in Bot. Gaz. lxxi. 431, fio-.l (1921). —See 

 also Schneider in this Jour. n. 192 (1922). 



62. S. myrtillifolia Andersson. — See Schneider in this Jour. n. 193. 



! S. lutea var. famelica Ball in Bot, Gaz. lxxi. 426 (1921).— "This variety differs 

 from S. hit', (i chiefly in the very small and more strmmlv nerved leaves." Sp< imens 

 arc enumerated from South and North Dakota and Montana. 



S. lutea var ligulifolia Ball in Bot. (iaz. lxxi. 428 (1921).— S. cordata Bebb, Willows 



brown branchlets, longer and narrower, straplike, usually dark green leaves with the 

 margins often nearly parallel and usually entire or only shallowly serrulate. Hie cap- 

 sules also are shorter and on fairly short pedicels.'' 'Specimens are enumerated from 



California, Nevada, Arizona, Utah, New Mexico, Colorado, South Dakota and Wyo- 

 ming. 



■S. cordata var. Bebb 



S \ariety "is separated 

 from S. lutea by the broad ovate-lanceolate leaves and the more elongate-] pedicels 

 1.5-2.5 or 3 mm. long." Specimens are enumerated from Utah, Wyoming, Idaho, 



Oregon, Nevada. — Ed. 



S. Farrae var. Walpoleii Coville A: Ball in Bot. Gaz. lxxi. 435 (1921).— "Salix 

 Farrai \\ alpoleii is separated readily from the species by the pubescent pilose ycung 



twigs, the broader, more obovate leaves, the longer and laxer amenta, and the shorter 

 styles." It is known only from Alaska.— See also note on S. Walvolei in this 



S. lutea var. platyphylla Ball in Bot. Gaz. lxxi. 430 (1921). 

 in King, U. S. Geol. Explor. 40th Parallel, v. 325 (1871).— This 



152.— Ed. 



Ipolei in this Jour. 1. 



