. Flowers of the field. Botany. 294 PETALOIDE^. Sagittaria {Common Arrow- head) shaped leaves, and whorled panicles of delicate, flesh - coloured flowers, both of which rise 6-8 inches out of the water. Rivers and ditches; not uncommon.—Fl. July to September. Perennial. Natural Order LXXXIX JUNCAGINACE^.—Arrow-Grass Tribe Flowers perfect ; sepals and petals alike, green and small; stamens 6 ; ovaries 3-6, superior, united or distinct; carpels 3-6, i to 2-secdcd. A small Order of marsh plants, with linear leaves, all pro- ceeding from the root, and spike-like clusters of inconspic
. Flowers of the field. Botany. 294 PETALOIDE^. Sagittaria {Common Arrow- head) shaped leaves, and whorled panicles of delicate, flesh - coloured flowers, both of which rise 6-8 inches out of the water. Rivers and ditches; not uncommon.—Fl. July to September. Perennial. Natural Order LXXXIX JUNCAGINACE^.—Arrow-Grass Tribe Flowers perfect ; sepals and petals alike, green and small; stamens 6 ; ovaries 3-6, superior, united or distinct; carpels 3-6, i to 2-secdcd. A small Order of marsh plants, with linear leaves, all pro- ceeding from the root, and spike-like clusters of inconspicuous flowers. Found in many parts of the world, and possessing no remarkable properties. I. Triglochin (Arrow-grass).—Flowers in a spike; sepals and petals 6 ; stamens 6. (Name from the Greek, treis, three, and glochis, a point, from the three points of the capsule.) I. Triglochin (Arrow-grass) 1. T. palustre (Marsh Arrow-grass).—Fruit linear, of 3 combined carpels. A plant with something the habit of Plantago maritima, from which it may easily be distinguished by its fewer flowers and slenderer spike, as well as by the different structure of the flowers. The leaves are linear and fleshy. Marshy places ; frequent.—Fl. June to August. Perennial. 2. T. maritimum (Sea Arrow-grass).—Fruit egg-shaped, of six combined carpels. Like the last, but well marked by its rounded, not linear capsule. Salt marshes ; common.— Fl, May to September. Perennial. Scheuchzeria palustris, which belongs to this Order, is a very rare plant, found only in the north. It has a few sem-icylindrical, blunt leaves, and a leafless stalk about a foot high, terminating in a cluster of a few small green flowers. Natural Order XC TYPHACEiE.—Reed-mace Tribe Stamens and pistils separate, but on the same plant (moncecious) ; flowers in dense spikes or heads, not enclosed in a sheath; perianth composed of 3 scales or a tuft of hairs : stamens 3-6, distinct, or united by their filaments ; anthers long
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