CATALOGUE OF PLANTS. 
147 
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This species and others, especially S. discolor, often hear cone- 
shaped galls on the ends of the branches. These consist of im¬ 
bricated leaves, and are caused by the deposit of eggs of insects. 
S. tristis. Ait. Dwakf Gray Willow. 
Rare. Hollows, between Northeast Harbor and Little Har¬ 
bor (Rand), 
our limits. 
Perhaps introduced in this localitj' from beyond 
S. petiolaris, Smith. 
Frequent. Somesville; Bass Harbor Marsh; Great Cran-^j 
berry Isle; Long Pond meadows, etc. (Rand). The type passes 
into the next variety. 
Var. angustifolia, Anders. 
Barratt & Hooker. 
S. rosmarinifolia (Herb. Hook.), 
Leaves narrowly lanceolate, almost linear, margin slightly 
serrulate or suhentire, glaucous beneath, at first silky, at length 
glabrate. DC. Prod., xvi. 2. 234. Common on meadows and 
heaths. Long Pond meadows; Pond Heath; Northeast Meadow, 
etc. (R. & R.). The silky hairs of the young leaves'Sire usu¬ 
ally of a rusty color. 
S. cordata, Muhl. Heart-leaved Willow. 
Rare. Roadside near Denning Pond Southwest Harbor <6! 
S. balsamifera (Hook.), Barratt. Balsam Willow. 
Widely distributed, hut nowhere very abundant. Southwest' 
Harbor; Sargent Mt.; Beech Hill; Ripples Pond; Somes Pond; 
Denning Brook; Beech Mt. Notch; The Hio; Doctors Brook; 
road, west side of Browns Mt., etc. (Rand); — Seal Harbor ^ 
(Redfield);—Browns Mt. (E. Faxon); — High Head meadow 
(Faxon & Rand); —Long Pond meadows (R. & R,). 
rc 
9u' 
POPULTJS, L. PoPL^^ Aspen. 
P. tomnlold.,, M.. A,™. ■^. ^ Aj,, ifXC. 
Frequent in woods. ' 
