. Gray's school and field book of botany. Consisting of "Lessons in botany," and "Field, forest, and garden botany," bound in one volume. Botany; Botany. SECTION FRUIT. 123 Poppy, or burst irregularly in some part, as in Lobelia and the Snapdragon; but commonly it splits open (or is dehiacenf) lengthwise into regular pieces, called Valves, 371. Regular Dehiscence in a capsule takes place in two ways, which are best illustrated in pods of two or three cells. It is either Loculicidal, or, splitting directly into the hculi or cells, that is, down th'e^ back (or the tllOrs
. Gray's school and field book of botany. Consisting of "Lessons in botany," and "Field, forest, and garden botany," bound in one volume. Botany; Botany. SECTION FRUIT. 123 Poppy, or burst irregularly in some part, as in Lobelia and the Snapdragon; but commonly it splits open (or is dehiacenf) lengthwise into regular pieces, called Valves, 371. Regular Dehiscence in a capsule takes place in two ways, which are best illustrated in pods of two or three cells. It is either Loculicidal, or, splitting directly into the hculi or cells, that is, down th'e^ back (or the tllOrsat" suture) of eact'cell or carpel, as in Iris (Mg. 395) ; or Septieidal, that is, splitting through the pailitions or septa, as in St. John's-wort (Fig. 896), Rhododendron, etc. This divides the capsule into its comp6- neut carpels, which then open by their ventral suture. 372. In loculicidal dehiscence the valves nat- urally bear the partitions on their middle; in the septieidal, half the thickness of a partition is borne on the margin of each valve. See tlie annexed diagrams. A variation of either mode occurs when the valves break away from thb partitions, these remaining attached in the axis o!f the fruit. This is called )iAsctncf\ One form is seen in the Moming-Glory (Fig* 400). 373. The capsules of Rue, Spurge, and some others, are both loculi cidal and septieidal, and so split ^ into half-carpellary valves or pieces. /^ 374. The Silique (Fig. 401) is /\ the technical name of the peculiar [ pod of the Mustard family; whici) is two-celled by a false partition stretched across between two pa- rietal placentas. It generally opens by two valves from below up- ward, and the placentae witli the pai'titiou are left behind when the valves fall oif. 375. A Silicle or Pouch is only -a short and broad silique, like Jhat" of the Shepherd's Purse, Fig. I§3, 395. Please note that these images are extracted from scanned page images that may have been digit
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1887
