1918] SCHNEIDER—AMERICAN WILLOWS 139 
it has certainly nothing in common with the forms in question. 
These specimens seem to represent a form somewhat intermediate 
between typical S. ovalifolia and typical S. arctica. It may be 
characterized briefly as follows: ab ovalifolia satis diferre videtur 
foliis amentisque majoribus, floribus masculis tantum (an semper ?) 
glandula ventrali instructis, ovariis satis pubescentibus etiam fruc- 
tibus tenuiter vel partim (fere ut in var. pubescente supra) pilosis 
sed non distincte glaucescentibus; ab arctica praecipue recedit 
foliis minoribus pl. m. rotundatis vel obovato-rotundis, amentis 
parvioribus, fructibus minoribus (perfecte maturis non visis) pl. m. 
glabrescentibus vel partim glabris. I do not want to propose a new 
name for this form, because it needs further observation, but it is 
by no means identical either with S. ovalifolia pubescens or with 
arctica. It may be referred provisionally to S. ovalifolia var. sub- 
arctica Lundstr6ém in Nov. Act. Roy. Soc. Sci. Upsala III. 1877. 
p- 41, where the following characters are given: “8, subarctica nob. 
capsulis pubescentibus; foliis majoribus, subtus parce villosis.”’ 
As I have said, the forms described by LunpstR6M cannot be fully 
understood until his type material is examined. 
There remains another arctic form which I should have regarded 
as not separable from typical S. ovalifolia but for the fact that I 
found stomata in the upper leaf epidermis in most of the specimens 
cited later. So far as I can judge by the rather scanty material 
before me, this variety, for which I propose the name var. camden- 
sis, var. nov., seems chiefly to differ from S. ovalifolia in the fol- 
lowing respects: foliis nondum perfecte evolutis minoribus vel 
oblongioribus elliptico- vel ovato-oblongis vel oblanceolatis apice 
acutis vel obtusis basi acutis vel pl. m. rotundatis vix ultra 1.5 cm. 
longis et 1 cm. latis in epidermide superiore vulgo pl. m. stomati- 
feris adultis textura tenuiore et subtus minus distincte reticulatis, 
petiolis saepe quam gemma brevioribus, amentis masculis subma- 
Jjoribus ad 1.5: cm. magnis, fructiferis subminoribus ad 1.5 cm. 
longis et 1.2 cm. crassis. 
I examined the following specimens: Alaska, Camden Bay, Collinson 
Point, July 17, 1914, F. i (no. 116 or 93482 O., fr., type in O at a 
1914, F. Johansen (no. 44° 93807 O.; f.; stomata non visa; no. 44° or 
93806 O., m.); Kongenevik, july 1914, F. Johansen (no. 82* or 93805 O., m. 
