Download torrent Botanical Gazette Volume 53
Download torrent Botanical Gazette Volume 53
Botanical Gazette Volume 53.cJohn Merle Coulter
---------------------------------------------------------------
Author: John Merle Coulter
Page Count: 192 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781231007327
File size: 45 Mb
Download Link: Botanical Gazette Volume 53
---------------------------------------------------------------
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. 1912 Excerpt: ...between them. The author thinks that the thickness of the exine "is the work of the tapetal Plasmodium." It is becoming more and more evident that in structure and behavior the Ophioglossales and Filicales belong together.--J. M. C. Chromosomes in maize.--K1xwada30 has studied the nuclear conditions in the pollen mother cells of nine different races of corn: red starch com, yellow starch corn, amber rice popcorn, black starch com, golden broach field com, white flint com, sugar com, early light sugar com, and red sugar com. The number of gemini in these different races varies from 9 to 12, the sugar corns having generally a larger number than the starch corns. He thinks that the smaller number was reduced from 12, which is the original number for all the races of Zea Mays. The size and shape of the gemini in a figure differ, and there is present always a duplication of each of the gemini. In the equatorial plate of the homotypic division some pairs of chromosomes come in contact with each other. He suggests that the production of innumerable races of Zea Mays might have a certain relation to the duplication of chromosomes, resulting in the double number derived from the original form, which had probably 6 chromosomes as the reduced number.--S. Yamanouch1. Botryopteris antiqua.--This interesting paleozoic fern, described by K1dston in 1908 from inadequate material, has been studied by Miss Benson31 J' Stevens, W1ll1am Chase, On the development of the sporangia and spores of Aneimia phyllitidis. Ann. Botany 25:1050-1068. pis. 84, 85. 1911. 30 Kuwada, Y., Maiosis in the pollen mother cells of Zea Mays L. Bot. Mag. Tokyo 25:164-181. pi. 6. figs. 4. 1911. 31 Benson, Margaret, New observations on Botryopteris antiqua Kidston. Ann. Botany 25:1045-1057. f...
Read online Botanical Gazette Volume 53 Buy and read online Botanical Gazette Volume 53 Download and read Botanical Gazette Volume 53 for pc, mac, kindle, readers Download to iPad/iPhone/iOS, B&N nook Botanical Gazette Volume 53
We Who Are Alive and Remain : Untold Stories from the Band of Brothers download pdf
Longo Sofista Degli Amori Pastorali Di Dafni E Cloe download ebook
Botanical Gazette Volume 53.cJohn Merle Coulter
Author: John Merle Coulter
Page Count: 192 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781231007327
File size: 45 Mb
Download Link: Botanical Gazette Volume 53
---------------------------------------------------------------
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. 1912 Excerpt: ...between them. The author thinks that the thickness of the exine "is the work of the tapetal Plasmodium." It is becoming more and more evident that in structure and behavior the Ophioglossales and Filicales belong together.--J. M. C. Chromosomes in maize.--K1xwada30 has studied the nuclear conditions in the pollen mother cells of nine different races of corn: red starch com, yellow starch corn, amber rice popcorn, black starch com, golden broach field com, white flint com, sugar com, early light sugar com, and red sugar com. The number of gemini in these different races varies from 9 to 12, the sugar corns having generally a larger number than the starch corns. He thinks that the smaller number was reduced from 12, which is the original number for all the races of Zea Mays. The size and shape of the gemini in a figure differ, and there is present always a duplication of each of the gemini. In the equatorial plate of the homotypic division some pairs of chromosomes come in contact with each other. He suggests that the production of innumerable races of Zea Mays might have a certain relation to the duplication of chromosomes, resulting in the double number derived from the original form, which had probably 6 chromosomes as the reduced number.--S. Yamanouch1. Botryopteris antiqua.--This interesting paleozoic fern, described by K1dston in 1908 from inadequate material, has been studied by Miss Benson31 J' Stevens, W1ll1am Chase, On the development of the sporangia and spores of Aneimia phyllitidis. Ann. Botany 25:1050-1068. pis. 84, 85. 1911. 30 Kuwada, Y., Maiosis in the pollen mother cells of Zea Mays L. Bot. Mag. Tokyo 25:164-181. pi. 6. figs. 4. 1911. 31 Benson, Margaret, New observations on Botryopteris antiqua Kidston. Ann. Botany 25:1045-1057. f...
Read online Botanical Gazette Volume 53 Buy and read online Botanical Gazette Volume 53 Download and read Botanical Gazette Volume 53 for pc, mac, kindle, readers Download to iPad/iPhone/iOS, B&N nook Botanical Gazette Volume 53
More posts:
Decouvertes 3. Das Trainingsbuch download ebookWe Who Are Alive and Remain : Untold Stories from the Band of Brothers download pdf
Longo Sofista Degli Amori Pastorali Di Dafni E Cloe download ebook