22^ JOUUNAL OF THE ARNOLD ARBORETUM [vol. i 



15 ft. and 5 or G in."). Kotzebue Sound, without exact locality, '*JuIy-S<'i)tembcr, 

 182(3/' Ikechcy [Lay & Collie] (st.; type in K.). Kuskokwini Valley, 18S1, Wein- 

 mann (st.; G.). Vicinity of Port Clarence, tundra at Teller Rcuideer Station* July 

 2G, 1901, F. .1. Walpole (No. 1548, fr.; W.;foliis etiamsupcrne dense sericeo-villosi:^); 

 on gravelly Hats at Mission Creek, July 13, 1901, same coll. (No. 14:J3, fr.; W.). 

 Arctic regions, witliout exact locality, Capt, Parry (ex Herb. Torrey in G.; a very 

 small steril fragment willi two female fragments of S. arciica Pall.). 



Yukon Tkhuitouy. King Point, A, H. Limhtrom, July 4, 190G (st.; N.). Car- 

 cross, July IG, 1914, A. Easiuxyod (No. G87, st.; A.); Lake Liudeman, head of Yukon 

 River, June 12, 1883, F. Schwaika (No. 15, fr, jiiv.; G.); Ligersoll Lslauds, moist 

 slouglis and river bottoms, IsUy 28, 1899, J/. W. Gorman (No. 985, f.; N., O.; W.); 

 Lake l?enn(^tt, lake shore and upland, June G, 1899, /. B. Tarlcton (No. 12, ex parte 

 f,; N.; *'up to 12 feet high, 4 in. diam."). 



NoHTHWESTEHN Teuhitories. Mackenzie River, north of Arctic Circle, 1898, 

 J. McConndl (f. ; C); Fort Franklin, Mackenzif* River, Richavihon (No. G53, f. ; G.; 

 same as No. 81, 10). TLB. & T.;K.); Great Slave Lake, Caribou Island, July 2, 1907, 

 Seton it Prchlr (No. 05, fr.; 0.); Upj>er Liard River, I>at. G0-G2, June 27, 1887, 

 Daw6'on (No. 28b., fr.; C). 



BuiTisn Columbia. Heruiett, July 17, 1914, A, Eastwood (No. 72G, sf.: A.). 



Richardson who first referred to this plant applied a name of Schleicher 

 to it, saying: *' 400. S. arenaria, macrostachys: Schleicher, S. limosa: WahL 

 Lapp. p. 205? (B.)." In Herb. N. (Ilcrb. liarratt) there are male and 

 female fragments of S. alaxensis with the label: ''This s})erimen is iden- 

 tical with IbS Richd. apj). 87, the Salix arenaria macrodachys! — S. speciosa 

 Hooker." 



Coville states that the stout twngs arc either smooth or dcMisely hairy, 

 and sometimes they have a decidedly blue color from the presence of a 

 conspicuous bloom. This last fonii has Ix^en collected by Miss A. East- 

 wood in many num])ers, especially at Dawson. In a field note this well 

 known collector says: *' At Dawson no specimens have tomentose twigs 

 and all ha^'e young twigs covered with a bluish bloom. Some plants 

 have red stems, others yellow. Those with red stems have red pistils if 

 female nnd red anthers when young if mrde. The two may be side by 

 side so It does nut seem due to soil." " This is the only sT)ecics in the 

 Yukon that ])ecomes a tree but it is frequently shrubby. One grove of 

 slender trees is near the brewery at Klondike City, across the Yukon, some 

 about fifty feet high but none more than six inches In diameter. The tree 

 has a smoolh greenish bark on the trunk. I saw no trees over a foot in 

 diameter. It is first in bloom and the flowering trees swarm with various 

 lepidoptcra, diptcra and hymenoptera. I had no facilities for either col- 



lecting or j)reserving, so can't find out the s])ecles. The woolly stemmed 

 ones were found only at greater elevation than Dawson. It is most beau- 

 tiful in flower. The leaves seem to !>e much eaten by insects and the 

 female calkins on some bushes were full of small smooth caterpillars which 

 hatclied out while specimens were drjnng." 



This gTa]>resccnt form with pruinose twigs is rather consju'cuous and 

 worthy of being made a distinct variety. There is aJready a name for it, 

 because llydberg has described a S. longUtylis which ujifortunatcly he did 

 not compare with S. alazcnsia and which according to Coville " is clearly 



