. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 168 on a plane with the branches, and slighth' expanding- at their jnnction, with a sHght carina similar to and uniting with that of the branches: elongate to broadly oval fenes- trnles; celhiliferons face; rounded charactei' of bi'anches it ^ ,M. M^ K^ Ji. yra .--j- « - « m '?1 'Is ;? # anUH tTcE ;-5«i - ? cy Fig 51A. Polt/pora Portion of a frond natural size: enlartrement of the non- celluliferous face, showing angular branches connected by slender dissepiments, x 6; en- largement of cellulife
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 168 on a plane with the branches, and slighth' expanding- at their jnnction, with a sHght carina similar to and uniting with that of the branches: elongate to broadly oval fenes- trnles; celhiliferons face; rounded charactei' of bi'anches it ^ ,M. M^ K^ Ji. yra .--j- « - « m '?1 'Is ;? # anUH tTcE ;-5«i - ? cy Fig 51A. Polt/pora Portion of a frond natural size: enlartrement of the non- celluliferous face, showing angular branches connected by slender dissepiments, x 6; en- largement of celluliferous face, showing form and disposition of cell apertures, and the stria:^ or ridges l)etween the i-anges of apertures, x 6; transverse sections of different fronds, showing varialion, x 6 ifrom Hall). and dissepiments, the latter slender and much depressed, obscure, and sometimes obsolete; narrow fenestrules, adja- cent branches fi-efpiently almost or quite in contact: cell aper- tures in two to four ranges, circular or oval, closely arranged; smooth interspaces; strong elevated peristomes. P^ound in the Hamilton group at Alden, Erie Co. (Hall), and at Eighteen Mile Creek. (Coll. Am. Mus. Nat. Hist., New York.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Buffalo Society of Natural Sciences. Buffalo, N. Y. : Buffalo Society of Natural Sciences
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Keywords: ., bookcentury1800, bookdecade1870, books, booksubjectnaturalhistory
