282 COVILLE 



Unalaska. — A single small tree was seen in cultivation in a yard at 

 Unalaska, but the species was not observed in that vicinity in a wild 

 state. 



In addition to the specific localities given above, at which this wil- 

 low was observed by the members of the Harriman Expedition, it has 

 been found in Alaska to the eastward by Miss Grace Cooley on the 

 moraine of the Davidson Glacier, and to the westward at Nushagak 

 in Bristol Bay by McKay ; in Norton Sound, Kotzebue Sound, and 

 at Cape Lisbourne by Seemann; at the type locality, in Kotzebue 

 Sound, by the botanists of the ' Blossom,' and at several points in the 

 interior of the Territory. 



SALIX AMPLIFOLIA sp. nov. Yakutat Willow. 



Plant a shrub or small tree, attaining a height of 6 meters with a 

 trunk 30 cm. in diameter; twigs stout, densely villous-pubescent the 

 first season and usually retaining their villosity till the second or third 

 year; leaves large, oval to broadly obovate, when fully developed 5 to 

 8 cm. long and half to two-thii'ds as broad, rounded at the base, but the 

 lower ones sometimes wedge-shaped, entire or denticulate-serrulate on 

 the margin, particularly below, obtuse and rounded at the apex or 

 broadly acute, villous on both surfaces when young, but becoming 

 smooth or nearly so at maturity, slightly glaucous beneath, on petioles 

 seldom exceeding a centimeter in length; stipules, none on our speci- 

 mens ; catkins appearing with the leaves from bud scales usually densely 

 villous or sometimes, like the twigs, glabrous from the early dropping 

 of the pubescence, on leafy-bracted peduncles commonly a centimeter 

 or two in length, stout, about 1.5 cm. in diameter and 4 to 6 cm. in 

 length ; staminate catkins with oblanceolate or lanceolate, dark brown 

 or black, long-hairy scales, the two stamens in each flower with glabrous 

 filaments about three times the length of the scales; pistillate catkins 

 with light to dark brown scales similar to those of the staminate, 

 the pistils on short hairy pedicels one or two millimeters in length and 

 once to twice the length of the nectaries, the lanceolate ovary smooth 

 or rarely showing a tendency to hairiness, the styles smooth, usually 3 

 to 4 mm. in length, though sometime? shorter, surmounted by the 

 four linear-filiform stigma lobes about i mm. long; fruiting catkins 

 often becoming at least 2 cm. in diameter, the capsules ovoid-lanceolate, 

 smooth, and sometimes 9 mm. in length. (Sec Plate XV.) 



Type specimen in the United States National Herbarium, collected 

 on sand dunes on the west side of Yakutat Bay, Alaska, between June 

 19 and June 23, 1899, by Frederick V. Covillc (No. 1 1 '^3 of Coville 

 & Kearney's collection). 



