Hales (1727I 733) discussed the rotting of wounds, cankers, &c., but much had to be done with the microscope before any real progress was possible, and it is easily intelligible that until the theory of nutrition of the higher plants had been founded by the work of Ingenhouss, Priestley and De Saussure, the way was not even prepared for accurate knowledge of cryptogamic parasites and the diseases they induce. [Please select]
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Poduras feed ordinarily on vegetable matter, such as dead leaves and growing cryptogamic vegetation. [Please select]
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Cryptogamic plants are liable to bud-variation, for fronds on the same fern are often seen to display remarkable deviations of structure. [Please select]
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* * * * * The Harvard summer schools were so far successful that the last catalogue reports forty students in geology, twenty-five in chemistry, twenty-five in phenogamic botany, and six in cryptogamic botany. [Please select]
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