CLASS XXII. ORDER I. ] SALIX. 1269 
development of stamens into petals is common, and well understood ; 
but the change altogether of formation and function, as in this 
instance, opens a wide and curious field of investigation. 
59. &. bicolor, Ehrh. (Fig 1528.) two coloured Willow. Catkins on 
short leafy stalks, numerous; stamens with slightly bearded fila- 
ments; scale ovate, acute, downy; leaves elliptical, green and 
shining above, smooth and glaucous beneath, serrated, with oblique 
teeth ; stipules small, crescent-shaped, serrated. 
Hooker, British Flora, ed. 4. vol. i. p. 370.—S. tenuifolia.— English 
Botany, t. 2186. (as to figure not Fl. Br.)—S. floribunda.—Forbes in 
Salict. Wob. p. 107. t. 54.—S. arduscula, var.—Lindley, Synopsis, p. 
235. 
A bushy spreading shrub, becoming about ten feet high, with 
smooth yellowish branches, downy when young. Leaves elliptical, 
acute, glabrous, shining above, glaucous beneath, with a prominent 
mid-rib and lateral veins, the margin serrated, with small point like 
teeth, the mid-rib and footsta!ks smooth, yellow, the young leaves are 
somewhat downy and purplish. Stipules small, serrated, crescent- 
shaped, often wanting. Catkins numerous, yellow, appearing before 
the leaves, elevated on short leafy stalks. Scales ovate, or oblong, 
acute, fringed, with long hairs. Stamens yellow, with long slender 
JSilaments, somewhat bearded towards the base. 
Habitat.— Highlands of Scotland; in Glenlyon, Banks of Ettrick. 
Shrub ; flowering in April, and again in July, (Forbes). 
A shrub of considerable beauty when in flower, and its shoots, 
when the plant has been cut down, are long, tough, and flexible, 
useful for many purposes of tying, basket work, &e. 
60. S. phillyreifo'lia, Borr. (Fig. 1529.) Phillyrea-leaved Willow. 
Catkins nearly sessile, becoming elevated on short leafy stalks ; cap- 
sules lanceolate, smooth, with long cleft styles and bifid stigmas; 
scales oblong, hairy; leaves elliptic lanceolate, acute at each end, 
strongly serrated, smooth, glaucous beneath; stipules small, glan- 
dulous. 
Borrer in English Botany Suppl. t. 2660.—Hooker, British Flora, 
ed. 4. vol. i. p. 871.—S. arbuscula, var — Lindley, Synopsis, p. 235. 
An erect much branched shrub, about five feet high, with straight 
yellowish green twigs, minutely pubescent when young. Leaves 
about an inch long, elliptic lanceolate, acutely tapering at each end, a 
bright shining green above, with slightly sunk veins, a glaucous green 
beneath, becoming quite smooth, the mid-rib and veins prominent, 
the margin serrated, with somewhat waved glandular teeth, the foot- 
stalk slender, downy above. Stipules small, half ovate, glandulous, 
soon falling away, and often wanting. Catkins numerous, appearing 
before the leaves, at first sessile, becoming elevated on a short leafy 
downy stalk. Scales oblong, acute, or obtuse, brownish in the upper 
