252 Rhodora [DECEMBER 
Since this remarkable shrub was described by Mr. Bebb from one 
of the Twin Islands in James Bay,! it has been found on calcareous 
cliffs of Table-top Mountain, Gaspé County, Quebec, by Fernald & 
Collins (no. 211, August 7, 1906), on the shores of Kangalaksiorvik 
Bay, Labrador by Owen Bryant (no. 75, September, 1908) at Bur- 
well, Hudson Strait and Churchill, Hudson Bay, lat. 58° 50’ by J. M. 
Macoun (nos. 79,155 and 79,154, July 18 and August 3, 1910), and 
on limestone barrens at sea-level by Ingornachoix Bay and on Pointe 
Riche, Newfoundland, by Fernald & Wiegand (nos. 3151 and 3152, 
August 1 and 4, 1910). All this material is essentially uniform in 
character, agreeing with the original plate of Salix Richardsoni, var. 
Macouniana in its short-ovate to orbicular apiculate round-based or 
subcordate leaves, its dense aments and undivided stigmas. In these 
characters the eastern shrub is strongly contrasted with Hooker’s 
S. Richardsoni, which has the narrowly obovate gradually acute leaves 
tapering at base, and the stigmas distinctly cleft. Besides these 
characters, already noted by Bebb, we find that in S. calcicola the 
midrib of the leaf is much wider and more conspicuous and the shorter 
petiole much broader than in S. Richardsoni. In the latter species, 
the stipules, as shown in Hooker’s plate (Fl. Bor. Am. t. clxxxii) and 
in two authentic specimens in the Gray Herbarium, are lanceolate 
and bear three conspicuous gland-tipped teeth on each side. In S. 
calcicola the stipules are oblong-ovate to suborbicular, with num- 
erous very fine glandular teeth. In all these characters the eastern 
shrub is so constant and distinctive that we feel no hesitation in 
raising it to specific rank; but since the name Salix Macounii has 
already been used in the genus it is advisable, in order to avoid possible 
confusion, to give the plant a new name. 
Salix calcicola is quickly distinguished from all the other species 
known to us from eastern America by its large terminal (as well as 
rarely scattered) catkins and by the very large terminal hairy winter- 
buds which, when fully grown are 5-10 mm. in diameter. The fully 
mature leaves become quite glabrate and thick, varying from 2 to 
5 cm. in length. 
Salix lanata L. of Arctic Europe has been reported from “eastern 
1 Tn his account of the expedition to James Bay, Mr. James M. Macoun (Bot. Gaz. 
xiii. 117) says that ‘‘on the north Twin Island specimens of a new willow were col- 
lected which has been described by Mr. Bebb”; but, in the original publication of the 
plant, Bebb said *'South Twin, James Bay, Collected July 17, 1887, by Mr. James M. 
Macoun, for whom it is named.” 
