222 Rhodora [DECEMBER 
cello nectarium triplo superante; stylo brevissimo, stigmatibus bifidis. 
Large shrub or small widely branching tree, 2-5 m. high; branch- 
lets coarse, canescent-tomentose, the pubescence slightly lustrous; 
leaves oblong to oblong-obovate, at first silky-tomentose on both 
surfaces, in maturity bright green and glabrate above, glabrate and 
glaucous beneath, 6—14 cm. long, 34.5 em. broad, subentire or shal- 
lowly crenate, acute or short-acuminate, rounded at base to the 
tomentose petiole (about 1.5 em. long); stipules round-ovate, decid- 
uous; aments borne upon short leafy branches, the pistillate dense, 
on canescent peduncles, 4-9 cm. long, about 1 em. thick; scales 
oblong, obtuse, dark brown, long-pilose; capsule conic-subulate, 
blunt, canescent-tomentose, 5-6 mm. long; pedicel 1-2 mm. long, 
thrice as long as the nectary; style 0.5 mm. long, the stigmas deeply 
cleft.— QUEBEC, abundant on terraces and banks of the St. Law- 
rence River from Matane, Matane Co., to Ruisseau Castor, Gaspé 
Co., and probably eastward. Type material: in fruit, Méchins, 
Gaspé Co., July 12, 1906 (Fernald & Collins, no. 202); in mature 
foliage, caleareous-sandstone sea-cliffs, Tourelle, Gaspé Co., August 
19-21, 1905 (Fernald & Collins). 
A handsome and very characteristic large-leaved shrub or small 
tree, suggesting in its foliage and tomentose branchlets S. amplifolia 
Coville, of Alaska, which has slightly smaller leaves, no stipules, 
thicker aments (1.5-2 em. in thickness), the ovary and capsule smooth, 
and the style 3-4 mm. long. From the eastern S. glaucophylla, 
which abounds along the rivers of northern Maine, New Brunswick 
and Quebec, S. laurentiana is, likewise, immediately distinguished 
by its tomentose capsules, as well as the aments terminating leafy 
twigs instead of being sessile or subsessile upon the old wood. 
The other undescribed willow which is associated on the banks of 
the lower St. Lawrence with S. laurentiana, S. pellita Anders., S. 
lucida, var. intonsa Fernald, and S. rostrata Richardson, has a wider 
distribution than S. lawrentiana, for it has been observed in abun- 
dance up the river from Matane as far as St. Fabien in Rimouski 
County and it doubtless extends further west. This large shrub or 
small tree, sometimes 20 feet high with trunks 6 inches 1n diameter, 
is clearly an extreme variation of the common S. rostrata. In the 
typical form of the species as well as in such variations as I find de- 
scribed the leaves are more or less rugose and comparatively small, 
the mature pedicels are from 3 to 5 mm. long, and the capsules 5 to 
9 mm. long. The larger extreme of the species from the lower St. 
Lawrence may be called 
