OPHIOGLOSSUM IN PENNSYLVANIA 119 
about one half mile wide and about three miles long. 
They extend for about two miles along Ridge Valley 
Creek in Montgomery Co., then turn in a more north- 
easterly direction and away from the creek, extending 
for about one mile into Bucks Co. Here they are 
bordered on both sides by steep wooded hillsides, with 
the Unami Creek just across the hill to the west and the 
Ridge Valley Creek to the east. Here, in these great 
meadows the Ophioglossum grows in great abundance, 
especially on the Bucks Co. side (the county line crossing 
the meadows about 200 ft. below the middle). Roughly 
speaking, I believe I can honestly say that this fern 
grows here by the thousand, so thickly at some places 
that you cannot take a step without getting some of it 
under the sole of your shoe. 
Besides the Ophioglossum, these meadows present a 
very interesting flora to the visitor. Pogonia ophioglos- 
sotdes seems to be one of the most common species. 
Through the upper half of the meadow this orchid grows 
in very great abundance, and is a beautiful sight when 
in bloom. It is a large statement, but I fully believe 
that if one would go to the trouble, one could count a 
million plants of this orchid growing there. 
Drosera rotundifolia is also very abundant, and 80.18 
Scleria pauciflora. The typical form of Arisaema 
pusillum and an albino variety grow here. Other - 
teresting plants are:—Melanthium wrgimicum, ; . 
latifolium, Liparis liliifolia, L. Loeselit, Spuranthes 
gracilis, S. cernua, S. vernalis, Cypripedium a 
C. acaule, Habenaria flava, H. clavellata, H. el 
Orchis spectabilis, Corallorrhiza maculata, C. odontormza, 
Batrachium trichophyllum, and eighteen different varie- 
ties of ferns. : 
Just two miles away from my home cre Pn’ . 
few stations where grows the rare estan ee 
teriana (Wister’s Coral-root). I have several go 
