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, ete., 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: 
Rhododendron canadense (Group I) 
Kalmia angustifolia (Groups I & III) 
5 polifolia (Groups I & III) 
Andromeda glaucophylla (Groups I 
& III) 
Menyanthes trifoliata (Group I) 
Lobelia Kalmii (Group II) 
Erigeron acris (Group II) 
Eriophorum callitrix (Group I) 
Carex vaginata (Group II) 
* paupercula, var. irrigua (Groups 
I & III) 
* limosa (Groups I & III) 
*  pauciflora (Group I) 
Tofieldia glutinosa (Group II) 
Rhamnus alnifolia (Group II) 
Ledum groenlandicum (Groups I & 
III) 
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 
& III) 
Scirpus pauciflorus (Group II) 
“  egespitosus (Groups I & III, 
and rarely II) 
Rynchospora capillacea (Group II) 
Carex vaginata (Group II) 
* paupercula, var. irrigua (Groups 
I & III) 
* limosa (Groups I & III) 
Juncus filiformis (Group I) 
Tofieldia glutinosa (Group II) 
Salix pseudo-myrsinites (Group II) 
*  balsamifera (Group I) 
pedicellaris (Group I) 
Comandra livida (Groups I & III) 
[11 
Parnassia parviflora (Group II) 
Rubus arctieus (Groups I & III) 
Potentilla palustris (Group I) 
Empetrum nigrum (Groups I & III) 
Rhamnus alnifolia (Group II) 
Viola nephrophylla (Group II) 
Ledum groenlandicum (Groups I & 
III) 
Andromeda glaucophylla (Groups I 
& III) 
Chamaedaphne calyculata 
I & III) 
Vaccinium canadense (Groups I & 
III) 
4 Vitis-Idaea, var. minus 
(Groups I & III) 
(Groups 
