Fossil Plants From the Beds of Volcanic Ash Near Missoula, Western Montana Vol. 8 No. 2
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In our eReader you can find the full English version of the book. Read Fossil Plants From the Beds of Volcanic Ash Near Missoula, Western Montana Vol. 8 No. 2 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Fossil Plants From the Beds of Volcanic Ash Near Missoula, Western Montana Vol. 8 No. 2
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So far as can be determined, the leaf-margin appears to be but very slightly serrulate.
Populus smilacifolia as described and figured by Newberry does not have the lowermost (third) pair of short and fine veins, as in the Missoula specimens, and it may be possible that the latter represent only a form of the common Populus ZaddacM Heer, the apex being but poorly preserved. The resemblance to Populus smilacifolia is so close, however, that the specimen has been provisionally referred to that spe...cies.
11. Juglans pentagona Jennings, sp. nov. (Plate XXIX, Figs. 1, la, 2, 2a.) This species is based on the impression of a nearly complete leaflet about 6 cm.
long by 4 cm. wide, broadly ovate, rather abruptly rounded to a bluntly acute apex, the base being apparently broadly rounded. The midvein is fairly strong; secondary veins, about thirteen pairs, varying from alternate to opposite, the lowermost arising from the midvein at a rather acute angle and then curving quickly outward to a course at almost right angles to the midvein, then curving upward toward the margin, the median and upper veins spreading from the midrib at an angle of 25-30° and curving gradually upward towards the margin.
What to read after Fossil Plants From the Beds of Volcanic Ash Near Missoula, Western Montana Vol. 8 No. 2?
You can find similar books in the "Read Also" column, or choose other free books by Carnegie Museum to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
So far as can be determined, the leaf-margin appears to be but very slightly serrulate.
Populus smilacifolia as described and figured by Newberry does not have the lowermost (third) pair of short and fine veins, as in the Missoula specimens, and it may be possible that the latter represent only a form of the common Populus ZaddacM Heer, the apex being but poorly preserved. The resemblance to Populus smilacifolia is so close, however, that the specimen has been provisionally referred to that spe...cies.
11. Juglans pentagona Jennings, sp. nov. (Plate XXIX, Figs. 1, la, 2, 2a.) This species is based on the impression of a nearly complete leaflet about 6 cm.
long by 4 cm. wide, broadly ovate, rather abruptly rounded to a bluntly acute apex, the base being apparently broadly rounded. The midvein is fairly strong; secondary veins, about thirteen pairs, varying from alternate to opposite, the lowermost arising from the midvein at a rather acute angle and then curving quickly outward to a course at almost right angles to the midvein, then curving upward toward the margin, the median and upper veins spreading from the midrib at an angle of 25-30° and curving gradually upward towards the margin.
What to read after Fossil Plants From the Beds of Volcanic Ash Near Missoula, Western Montana Vol. 8 No. 2?
You can find similar books in the "Read Also" column, or choose other free books by Carnegie Museum to read onlineMoreLess
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