1907] Fernald,— Soil Preferences of Alpine Plants 189 
or high-northern regions. In hundreds of bogs of New England and 
eastern Canada we find a few of the less markedly alpine plants such 
as Carex pauciflora, Eriophorum callitrix, Habenaria dilatata, An- 
dromeda glaucophylla, Ledum groenlandicum, etc., plants which are 
typical of our sphagnous bogs and of the mountains composed of 
potassic rocks. Certain bogs and meadows maintain floras of greater 
variety and of very great interest, especially when we take into account 
the alpine distribution exhibited by them. Caribou bog, in Crystal, 
Maine, for instance, has, besides Drosera linearis, Betula pumila, 
Lonicera oblongifolia, and many other plants of unusual occurrence 
in New England, a few arctic-alpine species: 
Eriophorum callitrix (Group I) Rhododendron canadense (Group I) 
anions erga (Group II) Kalmia angustifolia (Groups I & ITT) 
ape var. irrigua (Groups . polifolia (Groups I & TIT) 
Té & IIT) Andromeda glaucophylla (Groups I 
. eer (Groups I & III) & Il 
“4 flora (Group I) Menyanthes trifoliata (Group I) 
Tofieldia | Sa ics II) Lobelia Kalmii (Group II) 
Rhamnus alnifolia (Group II) Erigeron acris (Group IT) 
Ledum groenlandicum (Groups I & 
TT) 
Small bogs at the mouth of the Grand River, Gaspé Co., and simi- 
lar but larger bogs at the mouth of the Bonaventure River, Bona- 
venture Co., Quebec, situated in strongly calcareous regions, have a 
notable series of arctic-alpine plants, of which the following are con- 
spicuous: 
Selaginella selaginoides (Groups II Parnassia parviflora (Group II) 
& UI Rubus areticus (Groups I & ITI) 
Scirpus pauciflorus (Group IT) Potentilla palustris (Group I) 
“ caespitosus (Groups I & III, Empetrum nigrum (Groups I & IIT) 
and rarely II) Rhamnus alnifolia (Group II) 
Rynchospora ate ee II) Viola nephrophylla (Group IT) 
Carex vaginata (Group I Ledum groenlandicum (Groups I & 
“ paupercula, var. fee (Groups Tit) 
B Té& IIT) Andromeda glaucophylla (Groups I 
limosa (Groups I & III) & I 
Juncus filiformis (Group I) Chamaedaphne calyculata (Groups 
Tofieldia glutinosa (Group IT) I & III) 
ix pseudo-myrsinites (Group II) Vaccinium canadense (Groups I & 
ifera (Group I) III) 
pedicellaris (Group I) “ —-Vitis-Tdaea, var. minus 
Comat livida (Groups I & III) (Groups I & ITI) 
