Annual report of the United States Geological Survey to the Secretary of the Interior . CENTIMETERS CYCADEOIDEA NIGRA FROM THE SUPPOSED JURASSIC OF COLORADO LIBRARY OF THE UNIVERSITY ef ILLINOIS. PLATE LXX. 20 geol, pt 2 34 529 PLATE LXX. Page., illustrations of till: nature of the rahentacbous investiture of the genus 392 Fig. 1. Epidermal c-olls of ;i petiole giving origin to the rameutaceouschaff. Fig. 2. Kanientum as seen between two leaf bases within the armor. Fig. 3. Illustration of the relative great length of the chaffy hairs, whichmight be traced much farther. The oneon th
Annual report of the United States Geological Survey to the Secretary of the Interior . CENTIMETERS CYCADEOIDEA NIGRA FROM THE SUPPOSED JURASSIC OF COLORADO LIBRARY OF THE UNIVERSITY ef ILLINOIS. PLATE LXX. 20 geol, pt 2 34 529 PLATE LXX. Page., illustrations of till: nature of the rahentacbous investiture of the genus 392 Fig. 1. Epidermal c-olls of ;i petiole giving origin to the rameutaceouschaff. Fig. 2. Kanientum as seen between two leaf bases within the armor. Fig. 3. Illustration of the relative great length of the chaffy hairs, whichmight be traced much farther. The oneon the left is cut obliquely, show-ing the parallel cells. Figs. 4, 5. Cross sections of the chaff, showing their Hat, sharp-edged,multicellular character. Note.—Figs. 1-3 were obtained from slides of No. (5 of the .Museum of theUniversity of Wyoming, and therefore belong to C Know/toniana. Figs. 4 and 5 arefrom Xo. , and therefore belong to C. U. S. GEOLOGICAL SURVEY TWENTIETH ANNUAL REPORT PART II PL. LXX. ILLUSTRATION OF THE GENUS CYCADELLA LIBRARY OF THE UNIVERSITY of ILLINOIS. PLATE LXXI. PLATE LXX1. Cycadella Keedii Ward View of the best-preserved .uide of No. 127 of the Yale collection, includ-ing the eccentric U. 6. GEOLOGICAL SURVEY TWENTIETH ANNUAL REPORT PART II PL. L>XI
Size: 1268px × 1972px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1800, booksubjectgeology, booksubjectwatersupply
