The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae download ebook
The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae download ebook
The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae.cDouglas Houghton Campbell
---------------------------------------------------------------
Author: Douglas Houghton Campbell
Number of Pages: 106 pages
Published Date: 01 Mar 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781130738254
File size: 48 Mb
File Name: The.Eusporangiatae.Volume.140;.The.Comparative.Morphology.of.the.Ophioglossaceae.and.Marattiaceae.pdf
Download Link: The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae
---------------------------------------------------------------
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. 1911 Excerpt: ...of Ophioglossum pendulum (figure 78, D). A section made near the base of the petiole is almost circular in outline and there is a ring of separate bundles. On the adaxial side, however, two other bundles are seen inside the outer circle. Farmer and Freeman (Farmer 2) state that the number of bundles is about seven or eight, but the larger specimens which I have examined show a greater number. If a section of the petiole is examined higher up it no longer appears circular, but is slightly lobed, these lobes corresponding to the bases of the three divisions of the sterile lamina, and on the adaxial side may be seen a fourth lobe which marks the position of the peduncle of the sporangiophore. In this upper region of the petiole the bundles become more or less coalescent, but two adaxial bundles remain quite distinct and are continued upward into the spike. The structure of the bundles is concentric and the general appearance of the section is quire similar to that found in the larger species of Botrychium. The anatomy of the stem in the older sporophyte does not differ in any particular, except in the greater size of its parts, from that of the sporophytes already described. The vascular cylinder forms a hollow tube with narrow leaf gaps above, but quite solid on its ventral face. Farmer states that there is both an outer and an inner endodermis and that wood is formed inside of the protoxylem, so that the bundle is mesarch. Reference has already been made to the invaginated canals communicating with the stipular cavities and first described by Gwynne-Vaughn (Gwynne-Vaughn 1). In connection with these he describes slight projections of tissue from the vascular cylinder, which are surrounded by the endodermis. These projections he thinks may perhaps be the vest...
Read online The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae Buy and read online The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae Download and read The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae for pc, mac, kindle, readers Download to iPad/iPhone/iOS, B&N nook The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent
Abacus Evolve Year 3/P4: Talk Maths Software Multi User book
Download pdf Zeitschrift Fur Die Deutsche Gesetzgebung Und Fur Einheitliches Deutsches Recht, Volume 4...
Nov Studie a Podobizny download book
Download PDF, EPUB, MOBI Breakthrough : Live an Inspired Life, Overcome Your Obstacles, and Accomplish Your Dreams
Download New Labour and the European Union : Blair and Brown's Logic of History
The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae.cDouglas Houghton Campbell
Author: Douglas Houghton Campbell
Number of Pages: 106 pages
Published Date: 01 Mar 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781130738254
File size: 48 Mb
File Name: The.Eusporangiatae.Volume.140;.The.Comparative.Morphology.of.the.Ophioglossaceae.and.Marattiaceae.pdf
Download Link: The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae
---------------------------------------------------------------
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. 1911 Excerpt: ...of Ophioglossum pendulum (figure 78, D). A section made near the base of the petiole is almost circular in outline and there is a ring of separate bundles. On the adaxial side, however, two other bundles are seen inside the outer circle. Farmer and Freeman (Farmer 2) state that the number of bundles is about seven or eight, but the larger specimens which I have examined show a greater number. If a section of the petiole is examined higher up it no longer appears circular, but is slightly lobed, these lobes corresponding to the bases of the three divisions of the sterile lamina, and on the adaxial side may be seen a fourth lobe which marks the position of the peduncle of the sporangiophore. In this upper region of the petiole the bundles become more or less coalescent, but two adaxial bundles remain quite distinct and are continued upward into the spike. The structure of the bundles is concentric and the general appearance of the section is quire similar to that found in the larger species of Botrychium. The anatomy of the stem in the older sporophyte does not differ in any particular, except in the greater size of its parts, from that of the sporophytes already described. The vascular cylinder forms a hollow tube with narrow leaf gaps above, but quite solid on its ventral face. Farmer states that there is both an outer and an inner endodermis and that wood is formed inside of the protoxylem, so that the bundle is mesarch. Reference has already been made to the invaginated canals communicating with the stipular cavities and first described by Gwynne-Vaughn (Gwynne-Vaughn 1). In connection with these he describes slight projections of tissue from the vascular cylinder, which are surrounded by the endodermis. These projections he thinks may perhaps be the vest...
Read online The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae Buy and read online The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae Download and read The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae for pc, mac, kindle, readers Download to iPad/iPhone/iOS, B&N nook The Eusporangiatae Volume 140; The Comparative Morphology of the Ophioglossaceae and Marattiaceae ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent
Other entries:
Bulletin Volume 307-309 download ebookAbacus Evolve Year 3/P4: Talk Maths Software Multi User book
Download pdf Zeitschrift Fur Die Deutsche Gesetzgebung Und Fur Einheitliches Deutsches Recht, Volume 4...
Nov Studie a Podobizny download book
Download PDF, EPUB, MOBI Breakthrough : Live an Inspired Life, Overcome Your Obstacles, and Accomplish Your Dreams
Download New Labour and the European Union : Blair and Brown's Logic of History