. A class-book of botany, designed for colleges, academies, and other seminaries ... Illustrated by a flora of the northern, middle, and western states; particularly of the United States north of the Capitol, lat. 38 3/4. Botany; Plants -- United States; Plants -- Canada. ASCIDIA, STIPULES, AND BRACTS. 93 9. Quinate, when there are five leaflets radiating from the same point of the petiole, as in Potentilla argentea. 10. Septinate, when there are seven leaves from the same point in the petiole, and so on. 242. With regard to insertion, the leaf is said to be 1. Amplexicaul, when its base sniTO
. A class-book of botany, designed for colleges, academies, and other seminaries ... Illustrated by a flora of the northern, middle, and western states; particularly of the United States north of the Capitol, lat. 38 3/4. Botany; Plants -- United States; Plants -- Canada. ASCIDIA, STIPULES, AND BRACTS. 93 9. Quinate, when there are five leaflets radiating from the same point of the petiole, as in Potentilla argentea. 10. Septinate, when there are seven leaves from the same point in the petiole, and so on. 242. With regard to insertion, the leaf is said to be 1. Amplexicaul, when its base sniTOunds or clasps the stem. 12 4 3 5. FIG. — Modes of insertion. 2. Perfoliate, when the base lobes of an amplexicanl leaf are united together, so that the stem appears to pass through the leaf 3. Decurrent, when the base lobes of the leaf grow to the stem below the point of insertion, so that the leaf seems to run doumwards (Lat. decurro). 4. Connate, when the bases of two opposite leaves are united. 5. Stellate, verticillate, or whorled, when several leaves are arranged around the stem at the same node. 243. It is often found necessary, in the description of a plant, to combine two or more of the terms above mentioned, to express some intermediate figure or quality; thus ovate-lanceolate, signifying between ovate and lanceolate, &c. a. The Latin preposition sub (under), prefixed to a descriptive term, denotes the quality which the tenn expresses, in a lower degree, as snhsessile, nearly ses- sile, subsen-ate, somewhat serrate, &c. §9. ASCIDIA, STIPULES, AND BRACTS. 244. In the teazxl (Dipsacus) of our own fields, and in the Tillandsia, or wild pine of South America, there arc hollows at the point of union between the leaf- stalk and the stem, capable of holding a considerable amount of water. The midrib and petiole of the leaves of the Amm, also, are channeled out in such a manner as to com-ey water to the axil. 245. But the most remarkable of all leaves are thos
Size: 3603px × 694px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1840, booksubjectbotany, bookyear1848
