1919] SCHNEIDER, NOTES ON AMERICAN WILLOWS. VI 83 



of the real relationship of these intricate forms. lie had before him nothing 

 but a few specimens which were in part at least rather poor, and it is not 

 surprising that frequently he was not able to understand the scanty ma- 

 terial upon which he based his opinions. 



I have seen forms which I refer to S, pellita from southern Labrador 

 (Fernald & Wiegand, No. 3182, st..; G., O.; forma quamvis incerta, porro 

 observanda), western Newfoundland, New Brunswick (as far north as 

 Woodstock in Carle ton County), Maine (Aroostook and Somerset Coun- 

 ties), Vermont (Bloomfield in Essex County), and westward from Quebec 

 (as far north as Lake St. John), Michigan (Isle Royale, Houghton County), 

 Ontario (Savanne, Thunder Bay County), and the Lake AVinnipeg region. 

 These specimens include the type and the glabrescent form for which I 

 propose the name S- pellita f. psila/ nov. forma: a typo ut videtur nonnisi 

 differt foliis normalibus tantum novellis plus minusve pilosis citissime gla- 

 bris. — For the typ^ I take Fernald & Wiegand's No. 0^282, from New- 

 foundland, Valley of Exploits River, Grand Falls, thickets along river, 

 July 4, 1911 (fr.; G.). It seems to be associated with the type everywhere 



r 



in the northeastern part of its habitat from Newfoundland through north- 

 ern Maine, the Gaspc Peninsula to the Quebec District in Quebec. I do 

 not think it represents a good variety but is apparently connected with 

 the typical form by many intermediates. In a young state, if the branch- 

 lets are not pruinose, it is much like S. planifolia but it differs a good deal 

 from that species in the shape of the narrowly lanceolate leaves. Some 

 specimens the leaves of which show a rather distinct reticulation beneath 

 and are a little more rugulose, too, on the upper surface, look not unlike 

 the glabrous form of S. Candida which is called var. denudata Andersson, 

 but this form usually shows distinct traces of the peculiar pubescence of 

 S. Candida on the branchlets. 



There may be hybrids with species with which S. pellita is growing, and 

 I am at present unable to interpret properly some specimens before me. 

 Among them are the following collected by Fernald & Wiegand which 

 Fernald has determined as S. phylici folia. In part they are nearly identical 

 with S. pellita psila, and in part they look like a very narrow-leaved form of 

 S. planifolia of which I have not yet seen the typical form from Newfound- 

 land. The specimens came from Birchy Pond Stream in the eastern drain- 

 age area of the Humbcr River system, July 11, 1910 (No. 4239, fr.; A., G.; 

 "shrub 1— 1 m. high"; very similar to var. psila); river bank between Mt. 

 Musgrave and Humber Mouth Bay (Bay of Islands Station), July 15, 1910 

 (No. 3190, fr. ; G. ; looks a little more like S. planifolia), and Laurentian area 

 at the head of Exploits River system, granite barrens, slopes and summits 

 of hill near Quarry, July 7, 1911 (No. 5270, fr.; G.; as the preceding). The 

 pubescence of the young shoots is partly ferrugineous. In a later note I 

 shall discuss under S. hnmilis^IavshaM a form from Quebec, Neu-foundland 

 and New Brunswick of which the pubescence of the leaves closely simulates 

 that of S. pellita. 



^ Derived from ^t X6s^ with little hair. 



