Second Book of Botany

Second Book of Botany

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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. 1873 edition. Excerpt: ...many-celled. Seeds numerous, minute.--Shrubs, undershrubs, or herbaceous plants, with evergreen, often rigid, entire, verticillate or opposite, exstipulate leaves. The order contains many beautiful and showy plants, which abound at the Cape of Good Hope, and species of which are found also in Europe, North and South America, and Asia. The plants of the order are not remarkable for medicinal virtues. There are six species of the genus Erica natives of Britain: two of these, Erica cinerea and Erica Tetralix, are common; two are peculiar to Ireland, E. Machaiana and E. Mediterranea; and two are common to England and Ireland, E. ciliaris and E. vagans. The corollas of these heaths assume pink and white colours. Calluna vulgaris is the common heather, called ling. It has astringent qualities, and has been used for dyeing. It is commonly made into brooms. The leaves of Arbutus (Arctostaphylos) Uva-ursi, bearberry, are used as an astringent. Some of the species of Rhododendron, Azalea, Kalmia, Andromeda, and Ledum, have poisonous narcotic qualities. Fig. 82. Fig. 83. Fig. 84. The order may be illustrated by the common heather and the bell-flowered heath. The common heather (Calluna) differs from the heath (Erica) in the mode in which its seed-vessel opens. In Calluna the openings take place through the partitions (septa), and the valves separate from the septa. In Erica the openings take place at Figs. 82-84 illustrate the natural order Ericaceae. Fig. 82.--Erica cinerea, fine-leaved Heath, showing its entire exstipulate leaves and ovate swollen corolla with a 4-divided limb. Fig. 83.--Diagram of Erica, showing a flower having 4 divisions of the calyx and corolla, 8 stamens, and a 4-valved capsule. Fig. 84.--Vertical section of the flower of Erica, ..
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Product details

  • Paperback | 34 pages
  • 189 x 246 x 2mm | 82g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236596099
  • 9781236596093