3 °o 
THE PLANT WORLD. 
north of Owen Sound. Here it was growing near the base of a 
rocky wooded slope, but was decidedly scarce, as I could only find 
one plant which bore fertile fronds and not a great number of 
other plants. 
At Cape Croker, on the east shore of the Bruce Peninsula, on 
the wooded precipitous side of a high limestone ridge, I found 
it to be fairly common in a limited area. Here fertile plants were 
almost as common as those which bore only sterile fronds. 
On the slope of McLean’s Mountain the hart’s tongue ( Scolo - 
pendrium vulgare ), holly fern (Poly Stic hum lonchitis ), spinulose 
shield fern (Nephrodium spinulosum ), marginal shield fern (N. 
marginale ), maiden-hair fern (Adiantum pedatum ), bulb-bear¬ 
ing bladder fern (Cystopteris bulbifera) common bladder fern 
(C. fragilis ), maiden-hair spleenwort (Asplenium trichomanes) 
and walking-fern (Camptosorus rhizophyllus ) were common, the 
latter being present in such quantity as to form dense mats over 
many of the limestone boulders. 
At Indian Falls, near Owen Sound, I found Goldie’s shield fern 
(Nephrodium Goldieanum) to be fairly common down in the 
gorge. This is the only place where I saw this species in north- 
central Ontario and it appears to be its northwestern limit in Can¬ 
ada. Here also I found the only plant of the Christmas fern ( Poly - 
stichum acrostichoides) seen in the region. Taking North Grey 
County as a whole the following is the abundance of the various 
species seen during my tour: Botrychium virginianum , com¬ 
mon; Poly podium vulgare, scarce; Adiatum pedatum, common; 
Pter is aquilina , common ; Asplenium trichomanes, common ; 
Athyrium hlix-foemina, common; Scolo pendrium vulgare, com¬ 
mon; Camptosorus rhizophyllus, common; Phegopteris dryop- 
teris, scarce; Nep hr odium thelypteris , common; Nephrodium 
filix-mas, rare; Nephrodium goldieanum, scarce; Nephrodium 
marginale, abundant; Nephrodium cristatum, scarce; Nephro¬ 
dium spinulosum, common ; Poly stichum acrostichoides , rare; 
Polystichum lonchitis, common; Cystopteris bulbifera, abundant; 
Cystopteris fragilis, abundant; Onoclea ' sensibilis, common; 
Struthiopteris germanica, frequent. 
At three places in Bruce County—Colpoys Bay, Flower Pot 
