Monday, September 30, 2019

The evergreen ferns are greener than ever, by contrast.

September 30.
Deer Leap September 30, 2019

P. M. — Up Assabet.

Ever since the unusually early and severe frost of the 16th, the evergreen ferns have been growing more and more distinct amid the fading and decaying and withering ones, and the sight of those suggests a cooler season. They are greener than ever, by contrast. 

The terminal shield fern is one of the handsomest. The most decidedly evergreen are the last, polypody, Aspidium marginale, and Aspidium spinulosum of Woodis Swamp and Brister's. 

Asplenium Filix foemina (?) is decaying, maybe a little later than the dicksonia, — the largish fern with long, narrow pinnules deeply cut and toothed, and reniform fruit-dots. 

Of the twenty-three ferns which I seem to know here, seven may be called evergreens. 

As far as I know, the earliest to wither and fall are 
  • the brake (mostly fallen), 
  • the Osmunda cinnamomea (begun to be stripped of leaves), 
  • 0. Claytoniana
  • and 0. regalis (the above four generally a long time withered, or say since the 20th); 
  • also (5th), as soon, the exposed onoclea; 
  • then (6th) the dicksonia, 
  • (7th) Aspidium Noveboracense
  • (8th) Thelypteris
  • (9th) Filix-foemina (the last four now fully half faded or decayed or withered). 
Those not seen are Adiantum pedatum, Woodwardia Virginica, Asplenium thelypteroides, Woodsia Ilvensis, Aspidium cristatum, Lygodium palmatum, Botrychium Virginicum. 

Some acorns (swamp white oak) are browned on the trees, and some bass berries. Most shrub oak acorns browned. 

The wild rice is almost entirely fallen or eaten, apparently by some insect, but I see some green and also black grains left.

H. D. Thoreau, Journal, September 30, 1859

The evergreen ferns have been growing more and more distinct amid the fading and decaying and withering ones. The terminal shield fern is one of the handsomest. See September 25, 1859 ("The terminal shield fern and the Aspidium spinulosum (?) are still fresh and green, the first as much so as the polypody."); October 23, 1857 ("The ferns which I can see on the bank, apparently all evergreens, are polypody at rock, marginal shield fern, terminal shield fern, and (I think it is) Aspidium spinulosum, which I had not identified. . . .The above-named evergreen ferns are so much the more conspicuous on that pale-brown ground. They stand out all at once and are seen to be evergreen; their character appears.”); October 28, 1858 ("I now begin to notice the evergreen ferns, when the others are all withered or fallen."); October 29, 1858 (“Evergreen ferns, suddenly emerge as from obscurity . . . how much they require this brown and withered carpet to be spread under them for effect. Now, too, the light is let in to show them.”); October 31, 1857 (“I see two kinds of ferns still green and much in fruit, apparently the Aspidium spinulosum (?) and cristatum (?) . . . In the summer you might not have noticed them. Now they are conspicuous amid the withered leaves.”); November 5, 1857 ("The terminal shield fern is the handsomest and glossiest green.")

Of the twenty-three ferns which I seem to know here, seven may be called evergreens. See November 17, 1858 ("As for the evergreen ferns, I see now —
  • Common polypody (though shrivelled by cold where exposed).
  • Asplenium trichomanes.
  • A. ebeneum.
  • Aspidium spinulosum (?). large frond, small-fruited, in swamp southeast Brister’s Spring, on 16th.
  • A. cristatum (?), Grackle Swamp on the 15th, with oftener what I take to be the narrower and more open sterile frond.
  • A. marginale (common).
  • A. achrostichoides (terminal shield).
The first one and the last two are particularly handsome, the last especially, it has so thick a frond.")

The wild rice is almost entirely fallen or eaten, but I see some green and also black grains left. See September 15, 1859 ("The grain of the wild rice is all green yet."); September 24, 1852 ("The zizania ripe, shining black, cylindrical kernels, five eighths of an inch long.")

Some acorns (swamp white oak) are browned on the trees, and some bass berries. Most shrub oak acorns browned.  See September 30, 1854 ("Acorns are generally now turned brown and fallen or falling; the ground is strewn with them and in paths they are crushed by feet and wheels. The white oak ones are dark and the most glossy.") See also September 13, 1859 ("I see some shrub oak acorns turned dark on the bushes and showing their meridian lines, but generally acorns of all kinds are green yet. "); September 21, 1859 ("Acorns have been falling very sparingly ever since September 1, but are mostly wormy. They are as interesting now on the shrub oak (green) as ever."); September 26, 1854 ("Many swamp white oak acorns have turned brown on the trees."); September 28, 1858 ("The small shrub oak . . . with its pretty acorns striped dark and light alternately."); September 29, 1854 ("Bass berries dry and brown"); October 1, 1859 ("The shrub oaks on this hill are now at their height, both with respect to their tints and their fruit. The . . .pretty fruit, varying in size, pointedness, and downiness, being now generally turned brown, with light, converging meridional lines. . . .Now is the time for shrub oak acorns.")

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