Handbook of practical botany for the botanical laboratory and private student (1908)
Strasburger, Eduard, 1844-1912, Hillhouse, William, 1850-1910 · London, S. Sonnenschein; New York, Macmillan · leaf 187
atter case. In old tracheides ^ve can determine that the closingmembrane bulges to one side, and that the torus (t) is pressed upagainst one of the openings of the bordered pits. Staining thesection with hyematoxylin will facilitate the proof of this. The sections of the medullary rays (Fig.^ 56)… … while with some the height can increase up to as many as twentycells. The shallowest are alwaysbut one cell broad ; the highest canin their central part be several layersthick, and these latter contain theresin-canal, which is shown in sec-tion. The section may have alsocut through a vertical…
Botany · Plant physiology · Microscopy
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