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Vegetable secretions and the means by which by are effected by Kate L. Hudson, 1888

Vegetable secretions and the means by which by are effected by Kate L. Hudson, 1888, Page 39

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35 a glandular cavity. The resin ducts are but more elongated cavities, perfectly closed and lined by special secreting cells. They are formed, however in a different manner. Strands of cells become so separated as to enclose an elongated intercellular space into which is excreted the resin. In young shoots, the resin passages are simply elongated cavities having no special walls of their own but are bounded only by the surrounding cells which are thin walled. As the shoot grows the passage enlarges by the division of the cells adjoining and the
 
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