294 



PETALOIDE^ 



Sagittaria 

 Sagittifoi.ia 

 {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 and wedge-shaped ; ovary 



Triglochin Palusire 

 {Marsh Arrow-grass) 



