The Xylan Group of Polysaccharides

The polysaccharides from the corm sacs of Watsonia pyramidata (andr.) Stapf.145 and from the seed boxes of Watsonia versveldii146 

The presence of (1 — 4)-linked chains of jS-D-xylopyranosyl residues in the Watsonia pyramidata polysaccharide was shown by the isolation, on partial hydrolysis with acid, of 4-0-/3-D-xylopyranosyl-D-xylopyranose (76), the corresponding xylotriose (84), higher oligo- 

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