. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 202 MYCOLOGY repens, Elymus arenarius, Bromus secalinus and others; (3) f. sp. avenm on oats and Avena elatior, Dactylis glomerata, Alopecurus praten- sis, Milium efusum, etc.; (4) f. sp. pocB on Poa compressa and P. praten- sis; (s) f. sp. airce on Aira cmspitosa and A. hottnica; (6) f. sp. agrosHs on Agrostis canina and A. stolonifera. Brown Rust of Rye, Puccinia dispersa, with its cluster cups on Anchusa arvensis and A. officinalis. Crown Rust of Oats, Puccinia coronifera, with its a
. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 202 MYCOLOGY repens, Elymus arenarius, Bromus secalinus and others; (3) f. sp. avenm on oats and Avena elatior, Dactylis glomerata, Alopecurus praten- sis, Milium efusum, etc.; (4) f. sp. pocB on Poa compressa and P. praten- sis; (s) f. sp. airce on Aira cmspitosa and A. hottnica; (6) f. sp. agrosHs on Agrostis canina and A. stolonifera. Brown Rust of Rye, Puccinia dispersa, with its cluster cups on Anchusa arvensis and A. officinalis. Crown Rust of Oats, Puccinia coronifera, with its aecium on the buckthorn, Rhamnus cathartica. Of this species there are eight. Fig. 71.—A-C, Gymnoconia inlerstitialis. A, ^Slcidia on leaf of Rubus canadensis; B. piece of leaf enlarged; C, teliospore; D, teliospore of Sphenospora pallida, 500/ i. {After Dietel: Die natiirlichen Pflanzenfamilien I. lA**, p. 70.) speciahzed forms, as follows: (i) f. sp. avenee on oats; (2) f. sp. alope- curi on Alopecurus pratensis; (3) f. sp. festuccB on Festucas; (4) f. sp. lolii on rye grass, Lolium perenne; (5) f. sp. glyceriee on Glyceria aqua- tica; (6) f. sp. agropyri on Agropyron repens; (7) f. sp. epigcei on Cala- magrosHs epigeios; (8) f. sp. hold on Holcus lanatus. Crown Rust of Grasses, Puccinia coronata, with its aecium on Rham- nus frangula. Three special forms of this rust are known: (i) f. sp. calamagroslis on Calamagrostis arundinacea; (2) f. sp. phalaridis on 'Arthur, J. C. and Kern, F. D.: North American Species of Peridermium. Bull. Torr. Bot. Club, 33: 403-438, 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 Harshberger, John W. (John William), 1869-1929. Philadelphia : P. Blakiston's Son & Co
Size: 1750px × 1428px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1917
