The ferns and flowering plants of Nantucket—XIX 
EUGENE p. BICKNELL 
SUPPLEMENTARY NOTES 
Ophioglossum vulgatum L. Abundant in a meadow near the 
Polpis schoolhouse, June, 1909, and in a Madequet meadow, 
July, 1912. New stations of only a few plants are in Squam and 
Shawkemo, in the shade of thickets, and by a pool on the Nan- 
tucket golf links. 
Osmunda spectabilis Willd. Of luxuriant growth among wet 
thickets in Squam. 
Osmunda Claytoniana L. When mentioning Clayton’s Fern 
in Part I of this series no other evidence of its occurrence on Nan- 
tucket could be added to Mrs. Owen’s record of a single specimen 
long ago found by Mr. Dame. Later exploration has discovered 
it in the present-day flora of theisland. A single tuft in a meadow 
near the Creeks, observed first in 1908, was still there in 1912, 
when, also, a thriving colony was met with in a thicket in Squam. 
One tuft seen on Tuckernuck, June £7, 1911. 
Asplenium Filix-foemina (L.) Bernh, Common locally, espe- 
cially in Squam. The largest examples, in a Quaise thicket, were 
over three feet in length and fourteen inches in maximum width. 
Two different kinds of lady ferns grow near together at 
Watt’s Run, one green throughout, and having small fronds with 
close set, merely pinnate divisions, the other, characterized espe- 
cially by a red-purple rachis, having broader fronds with less 
crowded pinnae and more deeply cut pinnules. This red-stalked 
plant, which I have long thought to be a distinct species, is com- 
-mon enough among the forms combined under this fern, but I 
have not seen it elsewhere on Nantucket. 
It has recently been shown by Dr. F. K. Butlers (Taxonomic 
and geographic studies in North American ferns. Rhodora 19: 
179-216. pl, 123. 51917) that, “in the eastern parts of North 
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