130 H.G.SIMMONS. [sec. ARCT. EXP. FRAM 



Salicaceae. 



Salix arctica,. Pall. 



S. arctica, Pullas, FI. Ross., 1790; R. Brown, List of pi., et Chlor. Melv.; Kruuse, 

 List E. Greenl. ; Nathorst, N. W. GronL; Hart, Bot. Br. Pol. Exp.; Greely, 

 Rep.; Simmons, Prel. Rep. et Bot. Arb. ; Hooker, F1. Bor. Amer. ; Britton & 

 Brown, 111. Fl. ; Macoun, PI. Pribilof; K.tellman, in Vegaexp.; Ledebour, F1. 

 Ross.; LuND.sTRoM, Weid. Nov. Semi.; Andersson, in Decandolle, Prodr. ; S. 

 arctica /3 Brownei, Andersson, 1. c. ; Hartz, Fan. og Karkr. : S. Brownei, 

 LuNDSTRoM, 1. c, (non Bebb ?) '; S. Pallasii, Andersson, 1. c, S. altaica, 

 LuNDSTRoM, 1. c; S. cordtfoUa, Pursh, Fl. Amer. sept.; Hooker, 1. c. 

 Fig. Ledebour, Ic. pi. Fl. Ross., T. 460; Fl. Dan., T. 2488; 

 LiNDsTROM, 1. c, fig. 1; Tab. nostra 7, fig. 6—13. 



LuNDSTRoM has, in his very thorough work quoted ahove, suhjected 

 the history and synonyms of the present species to a very recondite 

 examination which must he referred to for particulars, here it may be 

 enough to state, that the original S. arctica of Pallas was a broad- 

 leaved form with short, slender branches, rather reminiscent of S. reti- 

 culata. The same name was, however, used about thirty years later 

 by Rob. Brown, who doubtless has not known Pallas' plant. This 

 new S. arctica somewhat differed from the first, but not enough to be 

 separated from it as a species. I have seen Brown's type-specimens 

 for the description in Chlor. Melv., and it has somewhat smaller and 

 narrower, rather glabrous leaves, but does not otherwise differ from 

 specimens determined by Lundstrom as S. arctica, Pall. But later 

 also the Greenland plant which has since been called S. groenlandica, 

 (Anderss.) Lundstr., was referred to it, and as Andersson, 1. c, re- 

 ferred the name arctica to these, he established a new species S. 

 Pallasii for the original asiatic plant, and moreover a var. Brownei 

 (should be spelled ''Brownii') of the former. Lundstrom has conceived 

 the affinity of all these forms and speaks of their continuity, but not- 

 withstanding he says about Brown's form : "Richtiger wiirde es viel- 

 leicht sein, diese Form unter den Namen S. arctica Pall. var. Brownei 

 (Ands.) nob. hinzufiihren", he has nevertheless "der Kiirze wegen" set 

 it up as a separate species. In this I cannot follow Lundstrom, but 

 must let it stand as a variety, as also the form groenlandica. Indeed 

 herbarium specimens of the extreme forms may seem rather different, 



' To judge from the distribution given to S. Brownii, Bebb, by Britton & Brown, 

 L c, I, p. 502, it should not include Rob. Brown's plant, notwithstanding the 

 synonym. That the figure does not agree with it, is perhaps of less importance, 

 as it is hardly worse than many other figures in that work. On the other hand, 

 Wetherill, List ISOi, p. 212, seems to have got his S. Brownii determined by 

 Bebb. 



