Introduction to the study of fungi : their organography, classification, and distribution for the use of collectors . th long, sometimes verylong, pedicels. In Fhragmosporae the teleutospores are three, or more,septate, in one direction. In most generathey are destitute of a pseudoperidium,whilst in Phragmidium^ (Fig- 119) andXenodochus the uredospores are differences between these two generaare slight: in the former the teleutosporesare cylindrical, the cells not readily break-ing up into joints; in the latter the cellsare more numerous and moniliform, soonbreaking up into the co


Introduction to the study of fungi : their organography, classification, and distribution for the use of collectors . th long, sometimes verylong, pedicels. In Fhragmosporae the teleutospores are three, or more,septate, in one direction. In most generathey are destitute of a pseudoperidium,whilst in Phragmidium^ (Fig- 119) andXenodochus the uredospores are differences between these two generaare slight: in the former the teleutosporesare cylindrical, the cells not readily break-ing up into joints; in the latter the cellsare more numerous and moniliform, soonbreaking up into the component cells. Intwo genera the uredospores are catenulate,of which Coleosporium is the most import-ant; in this geniis the uredospores areassociated in chains, and the teleutospores ^i«- 119—Teleutospores ^ of Phragmidium. are three, or many, septate. The pro-mycelium is continuous. In Clirysomyxa the uredospores are asin Coleosporitan, the teleutospores are multiseptate, and simple or ^ Hamaspora longissinm has been included under Phragmidium, but we doubtif it should not be maintained as a distinct L^ 248 INTRODUCTION TO THE STUDY OF FUNGI branched, whilst the promycelimn is triseptate. In three smallgenera the teleutospores are longitudinally septate; that is, inPueciniastriLm, in which the uredospores are enclosed in a pseudo-peridium, but the teleutospores are evolved externally to thematrix; Thecopsora, in which the uredospores are also enclosedin a pseudoperidium, and tlie teleutospores are intracellular ; inCalyptospora there are aecidia but no uredospores, and teleuto-spores, provided it is accurately determined that, in the singlespecies, the aecidium is found on the leaves of Abies, and theteleutospores on the branches of Vaccinium. In the remainingtwo genera the teleutospores are enclosed in a pseudoperidium—in Endopliyllum resembling an Aecidium with catenulate spores;and in Milesia the teleutospores are catenulate within a reticu-late immersed pseudope


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Keywords: ., bookauthorcookemcm, bookcentury1800, bookdecade1890, bookyear1895