Our Native Ferns and How to Study Them; With Synoptical Descriptions of the North American Species

Our Native Ferns and How to Study Them; With Synoptical Descriptions of the North American Species

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1890 edition. Excerpt: ...Sterile and fertile fronds unlike, smooth. X. Pellaea, Link. Sori on the upper part of the veins, distinct. or mostly forming a marginal band of sporangia. Sterile and fertile fronds usually similar, smooth. 'Aquatic. XI. Ceratopteris, Brong. Sori placed on two or three veins which run down the frond longitudinally. Indusia meeting at the midrib. Tribe VI. BLECHNE. Sori dorsal, linear or oblong, borne on transverse veins, parallel to the midrib. Indusium fixed at its outer margin, opening at the inner. Veins free. XII. Lomaria, VVilld. Sori in a continuous band next the midrib. Indusium elongated, formed of the recurved and altered margin of the pinnpe. or else sub-marginal. Fronds of two sorts, elongated. pinnate. XIII. Ble;hnum, L. Sori linear, elongated, continuous near the midrib. Indusia continuous. Fronds pinnate. This anomalous yeuus is placed provisionally among the I'tiriileie, but it will probably demand a separate tribe tor its reception. Prof. Eaton places it in a new snh order. t'KRATOVTF.HIliE.. Veins more or less reticulated. XIV. Woodwardia, Sm. Sori linear or oblong, forming chain-like rows. Indusia separate. Tribe VII. ASPLENIE. Sori dorsal, linear or oblong, oblique to the midrib, or rarely sub-parallel with it. Indusiun1 fixed by one margin to the veinlet, opening at the other, sometime8 double. Veins Jree. XV. Asplenium, L. Sori on the upper side of a fertile veinlet. rarely nn both sides. XVI. Scolopendrium, Sm. Sori linear, confluent in pairs, which appear like a single sorus with the double indusium opening in the middle. Veins reticulated. XVII. Camptosorus, Link. Sori oblong or linear, borne partly on veins parallel to the midrib, partly on veins oblique to to the midrib. Tribe VIII. ASPIDIEE. Sori dorsal, round or...show more

Product details

  • Paperback | 34 pages
  • 189 x 246 x 2mm | 82g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236599500
  • 9781236599506