. La botanica per giovani e scuole comuni : come piante crescono : una semplice introduzione alla botanica strutturale : con una flora popolare, o una disposizione ed una descrizione delle piante comuni, sia selvatici e coltivati . La botanica; Botanica. Interruptedly pinnate, quando alcuni dei lembi della stessa foglia sono molto più piccoli rispetto al resto, e disposte tra loro, come nell'acqua Avens. Pinnate bruscamente, quando non vi è alcun foglio illustrativo dispari alla fine, come in Honey-Locust, Fig. 130. Odd-pinnate, quando vi è un foglietto dispari alla fine, come nel comune di locusta (Fig. 128) e nella cenere. Pinnate con un viticcio, quando il

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. Botany for young people and common schools : how plants grow : a simple introduction to structural botany : with a popular flora, or, an arrangement and description of common plants, both wild and cultivated . Botany; Botany. Interruptedly pinnate, when some of the leaflets of the same leaf are much smaller than the rest, and placed between them, as in the Water Avens. Abruptly pinnate, when there is no odd leaflet at the end, as in Honey-Locust, Fig. 130. Odd-pinnate, when there is an odd leaflet at the end, as in the Common Locust (Fig. 128) and in the Ash. Pinnate with a tendril, when the footstalk is prolonged into a tendril, as in Fig. 129, and all of the Pea tribe. ' 148. Pinnate leaves may have many or few leaflets. The Bean has pinnate leaves of only 131. Palmals leaf, of 5 UaflBla. three leaflets. 149. Palmate leaves generally have few leaflets; there is not room for many on the very end of the footstalk. Common Clover has a palmate leaf of three leaflets (Fig. 136) ; Virginia Creeper, one of five leaflets (Fig. 72), as well as the Buckeye (Fig. 131) ; while the Horsechestnut has seven, and some Lupines from eleven to seventeen. **• 150. Twice or Thrice Compound leaves are not uncommon, both of the pinnate and of the palmate sorts. While some leaves of Honey-Locust are only once pinnate, as in Fig. 130, others are doubly or twice pinnate, as in Fig. 132. Those of many Acacias are thrice pinnate. Fig. 133 represents one of the root-leaves of Meadow-Rue, which is of the palmate kind, and its general footstalk is divided into threes for four times in suc- cession, making in all eighty-one leaflets! When a leaf is divided three or four times, it is said to be decompound. This is ter- nately decompound, because it divides each time into threes.. A Iwice-pinnate leaf of Hoiiey-Lociin. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may

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• bookcentury1800
• bookdecade1880
• booksubjectbotany
• bookyear1881