186 MONOCOTYLEDONS. ALISMACE^E. 



1. N. pseudo- Narcissus, spatha 1 -flowered, crown cnmpauulate 

 erect curled at the margin obsoletely 6-cleft as long as the ovate 

 segments of the perianth, p. 100. Woods. 



2. GALANTHUS. 



Flowers spathaceous. Perianth 6-partite; the three interior seg- 

 ments shorter, emarginate. 

 I. G. nivalis. p. 100. Banks and pastures. 



ORDER XI. IRIDE^E, Juss. 



( E?isatce, Ker in Bot. Mas.} 



Perianth coloured, 6-cleft, or 6-partite; sometimes irregular. 

 Stam. 3, inserted into the base of the outer segments; fila- 

 ments sometimes united; anthers affixed by their base, turned 

 outwards. Ovary inferior, 3-celled, many-seeded. Style 1. 

 Stigmas 3, lamellated or dilated into the form of petals, 

 rarely 2-lipped; sometimes 1 stigma obscurely 3- lobed. Caps. 

 3-celled, 3-valved; valves bearing the septa in the middle. 

 Seeds round, hard. Albumen horny or firmly fleshy. Em- 

 bryo with the same direction as the seed. Herbs, rarely under- 

 shrubs. Leaves equitant, in two ranks, with their edges 

 turned upwards (except in Crocus). Flowers spathaceous, 

 terminal, either in a spike or corymbs or panicle; sometimes 

 partly under ground. Br. 



1. IRIS. 

 Perianth 6-cleft, petaloid, each alternate segment reflexed. 



Stigmas petaliform. 

 1. I. Pseudacorus, leaves ensiform, each. alternate segment of 



the beardless perianth smaller than the stigma, p. 16. Ditches. 



ORDER XII. ALISMACE^R. Rich. 

 Perianth with the three inner segments petaloid. Slam, hypogy- 

 nous. Ovaries superior. Pericarfx indehiscent. Seeds so- 

 litary, or two attached to the suture at a distance from each 

 other, erect or ascending. Albumen none. Emlryo curved 

 like a horse-shoe, with the same direction as the seed. Aqua- 

 tics. Leaves radical, on long stalks, fleshy, with indistinct 

 nerves. Flowers white, panicled. Rich. 



1. ALISMA. 

 Stam. 6. Ovary and styles numerous. Pericarps numerous, 



clustered but distinct, 1 -seeded. 

 1. A. Plantago, leaves ovate acute, fruit depressed, pericarps 



obtusely trigonal, p. 114. Banks of lakts. 



