. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. PHRAGMIDIUM. 363 On species of Potent ilia : Phr. fragariastri (1). C.) (Britain and America). Phr. potentillae () ( America). Phr. tormentillae Fuck. (Britain.) Phr. papillatum Dietel, from Siberia. Phr. nepalense Baicl. and Phr. laceianum Barcl. in India On species of liuhus: Phr. rubi (Pers.) (/'/a: l»dhomm Schlecht.) (Britain). Phr. rubi-idaei (). On leaves of raspberry. (ihitain and l".S
. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. PHRAGMIDIUM. 363 On species of Potent ilia : Phr. fragariastri (1). C.) (Britain and America). Phr. potentillae () ( America). Phr. tormentillae Fuck. (Britain.) Phr. papillatum Dietel, from Siberia. Phr. nepalense Baicl. and Phr. laceianum Barcl. in India On species of liuhus: Phr. rubi (Pers.) (/'/a: l»dhomm Schlecht.) (Britain). Phr. rubi-idaei (). On leaves of raspberry. (ihitain and l".S. America.) Phr. violaceum (Schultz) (Hritain). Phr. rubi-miniatum J. .Miill. Phr. albidum (Kidni). Phr. quinqueloculare Barcl. Phr. octoloculare Barcl. Phr. Barclayi Dietel, from Hima- laya. Phr. gracile Farl., America. And other species. On Sanguisorha: Phr. sanguisorbae (D. C.)". On SanguixorhK 'iiiinor. (pjritain.) Phr. carbonarium (Sclilecht.) (Ijritain). This species has also been placed in a separate genus Xenodochus. It occurs on San- guisorha. Uredospores are want- ing ; the teleutospores form firm black crusts; the aecidiospores form chains; and the paraphyses are club-shaped. Diseased leaves and petioles ure thickened and bent. Wakker'.s investigation showed: a slight enlargement of parenchymatous cells and rupture of epidermis on spore-formation ; a diminution in the intercellular spaces and in formation of collenchyma and sclerenchyma; a suppression of all production of chluropliyll and calcium Fig. 195. frutkoeus. lUiViii ruhi from Hubus erical iimiuvture te- leutospore, and two well-developed and germinating ones. (After Tulasne.) Melampsora. Teleutospores dark and unicellular, in some cases niulti- celhdar l)y formation of new walls, generally in a vertical. 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 perfectl
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
