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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 Excerpt: ... a staminate flower enlarged. A shows a bur, and B, a section of the same, showing the two embryos. Both A and B are about natural size. Each bur, when ripe, incloses two seeds, one of which may germinate the first year, and the other lie dormant until a later time. It has been said that the plant is poisonous to ...

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