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Still Further Notes upon Corema Localities 
By JOHN H. REDFIELD. 
1. CAPE Cop. Thoreau, who visited Cape Cod in 1849 
and 1855, noticed the occurrence of Corema Conradii at N. Truro 
and Provincetown,* and I have already mentioned that it had 
been seen at N. Truro by Benj. M. Watson, Jr., and by Mr. 
Robert Smith.t In July of this year I had opportunity of see- 
ing one of the localities at this point. The light-house at N. 
Truro, known as the Highland Light, is situated upon a sandy 
bluff about 120 feet above the eastern or ocean shore of Cape 
Cod. About five or six hundred yards S. W. of the light-house 
is a depression, extending eastward and westward between the 
sand hills. On the southern acclivity of this depression I saw 
the Corema extending over a space of about 100 feet in length 
and 75 in breadth, assuming a very prostrate position, probably 
owing to the strong winds to which these hills are exposed. 
The soil is composed almost purely of large grains of quartz. 
The growth over this space is almost continuous, ending in iso- 
lated patches on the upper side, and beyond these were seen 
occasional very small single plants, in vigorous condition, as if 
seedlings from the older plants. The Corema was surrounded 
and occasionally penetrated by plants of Hudsonia ericoides. 
The nearest other plants were Baptista tinctoria, and Myrica 
cerifera, The region is very similar in aspect to the more hilly 
portion of the Nantucket downs, and like those abounds with 
Arctostaphylos Uva-urst and Polygala polygama. The locality 
seen by Mr. Smith, which is also in sight of the light-house, must 
be still another, judging from a photograph of it made by him. 
Thoreau saw it “near the edge of the banks, about half a mile 
southward” of the light-house. No doubt other localities exist, 
among the wide extent of the hilly downs of Cape Cod; but | 
after seeing it, one is inclined to wonder that so little of it exists 
in a region where all the environment seems so favorable. 
2. MrT. DESERT I. On the ridge west of Long Pond, Seal 
Harbor, I found, last summer, two new localities. This ridge 
lies about a mile west of Barr Hill, on which occur the localities 
* Thoreau’s Cape Cod, p. 154. 
t Bulletin Torrey Botanical Club, xi., 99; xii., 93. 
