. Outlines of botany for the high school laboratory and classroom (based on Gray's Lessons in botany) Prepared at the request of the Botanical Dept. of Harvard University. Botany; Botany. h p 31'J. Section tlironi;li a clus- ter cup of Piici-inia in the leat of llarberry. 320. A stalk of grass with spores of Wheat, Puccinia break- . -, „ ma' at tlie surface ing through the epidermis i dark patches. masses of spores for the further spread of the disease. The spores produced on the Wheat are differ- ent both in shape and in the manner in which they are borne from the spores of the cluster-cup st
. Outlines of botany for the high school laboratory and classroom (based on Gray's Lessons in botany) Prepared at the request of the Botanical Dept. of Harvard University. Botany; Botany. h p 31'J. Section tlironi;li a clus- ter cup of Piici-inia in the leat of llarberry. 320. A stalk of grass with spores of Wheat, Puccinia break- . -, „ ma' at tlie surface ing through the epidermis i dark patches. masses of spores for the further spread of the disease. The spores produced on the Wheat are differ- ent both in shape and in the manner in which they are borne from the spores of the cluster-cup stage on Barberry. Moreover, on Wheat the spores are of two sorts (Fig. 321): (1) unicelkdar uredospores, prevailing until late summer or fall, the office of which is to spread the l!us( l)y immediate germination on being Ijlowit OOT. OF EOT. 13. Uredospnres and a te- leiituspore (0 of Puc- cinia. — De 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 Leavitt, Robert Greenleaf, 1865-1942; Gray, Asa, 1810-1888. Field, forest, and garden botany. New York, American Book Co
Size: 1207px × 2070px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1901
