are absent; or, if they never lose those organs, as evergreens, only at seasons when the atmosphere is periodically charged with humidity for some considerable time. 367. Old trees, in which the roots are much injured, form new ones so slowly that they are very liable to be exhausted of sap by the absorption of their very numerous young buds before new spongioles can be formed. 368. The amputation of all their upper extremities is the most probable prevention of death; but in most cases injury of their roots is without a remedy. 369. Plants in pots, being so circumstanced that the spongioles are protected from injury, can, however, be transplanted at all seasons without any dangerous, consequences. INDEX. A. Amaryllis—how to cultivate.. PAGE 62 63 B. Biennial flower seed-.... 31 33 55 58 60 61 55 Grafting ... management of, in cold weather. management of, in warm weather. 91 .116 H. 54 Hardy flowering shrubs...... 95 |
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