. The fungi which cause plant disease . Plant diseases; Fungi. 270 THE FUNGI WHICH CAUSE PLANT' DISEASE 3-4 fi, elliptic, guttulate; setae present, but almost obscured by the spore mass. The ascigerous stage was demonstrated by Stoneman ^'" from pure culture studies. The conidial stage was described by Hal- sted ^" as the cause of a blighting of orchid leaves (Sobralia) in New Jersey. Various hosts are orchids, Sarracenia, rubber plant, Dracaena --* and Anthurium.^^^. Fig. 199.âG. rufomaculans, acerv'ulus showing conidia, conidiophores and setae. After HasseLbring. G. rubicola (Ston.


. The fungi which cause plant disease . Plant diseases; Fungi. 270 THE FUNGI WHICH CAUSE PLANT' DISEASE 3-4 fi, elliptic, guttulate; setae present, but almost obscured by the spore mass. The ascigerous stage was demonstrated by Stoneman ^'" from pure culture studies. The conidial stage was described by Hal- sted ^" as the cause of a blighting of orchid leaves (Sobralia) in New Jersey. Various hosts are orchids, Sarracenia, rubber plant, Dracaena --* and Anthurium.^^^. Fig. 199.âG. rufomaculans, acerv'ulus showing conidia, conidiophores and setae. After HasseLbring. G. rubicola (Ston.) S. & S. Perithecia quite similar to those of G. piperata and G. cinta but lacking the apical tuft of hair and rather larger in size. Conidia (=Colletotrichum rubicolum) forming large, dark- brown patches on the upper surface of the leaf; son small, dark, suberumpent; conidia oblong, elliptic, x6 fi. The conidial form on red raspberry was shown .by Stoneman ^â *'' by pure culture studies to possess this ascigerous stage. G. psidii (Del.) ;'3-264 Perithecia 200-300 fi, spherical, rarely distinctly beaked; asci. 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 Stevens, Frank Lincoln, 1871-1934. New York : Macmillan


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913