Ferns; A Manual for the Northeastern States, with Analytical Keys Based on the Stalks and on the Fructification, with Over 200 Illustrations from Original Drawings and Photographs

Ferns; A Manual for the Northeastern States, with Analytical Keys Based on the Stalks and on the Fructification, with Over 200 Illustrations from Original Drawings and Photographs

By (author) 

List price: US$8.62

Currently unavailable

Add to wishlist

AbeBooks may have this title (opens in new window).

Try AbeBooks

Description

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ...peculiarity, the silvery spleenwort and at times the ostrich-fern. But the silvery spleenwort is always hairy, and the stem of the ostrich-fern is much more deeply grooved in front and flattened on the sides, and the rachis is narrowly winged on each side, its pinnae are merely pinnatifid with entire lobes, and the lower pinnae are much reduced. Fronds of the ladyfern from three and five-eighths up to forty-nine inches tall were examined, and the teeth were found in every instance. The lady-fern is put in the genus Athyrium on account of the curved sori that cross the veins, as shown in the accompanying illustration. Comparing it with the picture on page 47 we see that the folding is not carried to the same extent as in the silvery spleenwort, and the sori seem never to be double as in that species. The fertile fronds, Son of Lady-fern. X5J. which are taller and with more distant pinnae than the sterile ones, come up in June, and the spores begin to ripen in July. They germinate very readily, and are, perhaps, the best for experiments at home. To obtain them we need only pick heavily-fruited pinnae and let them dry out in a paper box or bag for a dav or two until the spores are discharged. The prothalli and young plants in all stages are readily found on moist earth wherever the lady-fern is at all abundant. In spite of its being a favorite of the poets, it must be confessed that the lady-fern is not nearly as attractive as many of our other ferns. There is a certain coarseness about it that detracts from its appearance, and makes it inferior to the spinulose wood-fern, with which beginners are apt to confound it. Is it the finishing touch of the bristly tips to the lobes that makes the latter so much more attractive, or does the eye take...show more

Product details

  • Paperback | 56 pages
  • 189 x 246 x 3mm | 118g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236762630
  • 9781236762634