juncagine.f, pistiace.e. 263 



Oruer CXX. JUNCAGTNE.E. 



Flowers perfect. Perianth 4-6 leaved, or G-parled, rarely 

 wanting. Stamens 3-G, liypogynous. Ovaries 3 or 6, co- 

 herinjr. Ovules 1 or *2, erect. Fniit dry, 1 or 2-seeded. 

 Herbiiceous plants, growing in bogs. Leaves cnsitbrni, flow- 

 ers in spikes, or racemes. 



Gexts I TRIGLOCHhV. 



Perianth 6-leaved. Stamens 3—4. Stigmas 3. Capsules 

 3-4, opening at the base. Seed solitary. 



1 T Triandrim. Z.«it)c» terete, linear, as long as the scape, erect, sheath- 

 inc; scape terete. i^/oitvr< numerous. -4 n/Acrs sessile. Capsules Z-A^ nni' 

 ted bv a spongy membrane. 



July — August. In sands on the coast. 6 in. 



Order CXXI. PISTIACE^. 



Flowers 2, enclosed in a spa the. Stame/ts 2-7. Ovary 

 1-celled, with 1 or more erect ovules. Style 1, sliort. Fruit 

 indehiscent, 1 or more seeded. Seeds with a fungus integment. 

 Floating plants, with cellular, lenticular, or lobed stems and 

 leaves. 



Gentts I LEMNA. 



Flowers monoecious, with the sterile and fertile flowers col- 

 lateral. Stamens 2. Capsule 1-celled, 1-5 seeded. 



1 L MiNJR. A small floating plant. i>are< elipfic, flat, bearing^ flowers, 

 in clefts, on the' margins of the leaves or fronds. Kool solitary, rlants in- 

 creasing by gemmae. 



Q July— Aug. In stagnant waters. 



2 L PoLYRRHizA. Leaves eliptic, flat, cohering at the base, compressed, 

 succulent, of a hrm te.xture. Koot a bundle of 8-10 simple fibres, in the 

 middle of the leaf. 



O June — July. In stagnant waters. 



Glsvs II PISTIA. 



Perianth a tubular, cucullate spathe, strap shaped. Sta- 

 mens 3—8. Capsule 1 celled, many seeded. 



1 P Spathtlata. a floating plant. Leaves all radicle, abniptly narrow- 

 ed into a petiole, dilated, round and obtuse towards the summit. Floxcers 

 lolitary, sub-sessile. 



White. Q May— Aug. In stagnant waters. 



