. The Canadian record of science. Natural history. Sporocarps in Brian Shale of Columbus. 13*7 On Spoeocaeps Discoyered by Peof. E. Oeton in THE Eeian Shale of Columbus, Ohio. By Sir J. Wm. Da^'son, , &c. In a paper published in this journal in 1884, I directed attention to certain specimens from Brazil and from Ohio, which I placed in connection with the curious round bodies from the Erian or Devonian of Kettle Point, Lake Huron, discovered by Sir W. B. Logan, and which I described as Sporangites Huronensis. These bodies were shown to be macrospores, and, on the analogy of the Brazi
. The Canadian record of science. Natural history. Sporocarps in Brian Shale of Columbus. 13*7 On Spoeocaeps Discoyered by Peof. E. Oeton in THE Eeian Shale of Columbus, Ohio. By Sir J. Wm. Da^'son, , &c. In a paper published in this journal in 1884, I directed attention to certain specimens from Brazil and from Ohio, which I placed in connection with the curious round bodies from the Erian or Devonian of Kettle Point, Lake Huron, discovered by Sir W. B. Logan, and which I described as Sporangites Huronensis. These bodies were shown to be macrospores, and, on the analogy of the Brazilian species, to have been probably enclosed in sporocarps resembling those of the modern genus of Ehizocarps known as Salvinia, and found floating in water, with a few green leaves and rounded sporocarps on the bases of the leaves or at the proximal ends of the roots. These curious little plants, insignificant in the modern world, would seem to have been vastly abundant in the Erian period, inasmuch as hundreds of feet of the Ohio black shale are filled with them ; and this formation extends across the State of Ohio, and is found in New York and in Ontario as well. But though the macrospores are thus abundant, the sporocarps, which it was presumed had contained them, were absent. Quite recently, however, Pjof Orton has found at Columbus, Ohio,' well-preserved sporocarps flattened like those from Brazil, exhibiting their cellular structure quite distinctly under the microscope, and sometimes showing the impres- sions of the contained macrospores. Along with these sporo- carps were others of quite diff'erent form, and apparently belonging to a very distinct species, though probably of the same general type—that is, allied or belonging to the Ehizocarps. Pi-of. Ortoji has kindly furnished me with spocimons of these curious bodies, and the following notes relate to their chai-actcrs. "What should now be looked for is Homo indication of the foliage of these interesting plant
Size: 1148px × 2176px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdec, booksubjectnaturalhistory, bookyear1884
