JLASS V[. ORDER XIII. 45 



Pritila'ru. Corolla inferior, 6petalled, bell-form, with a nectariferous cavity 

 above the claw of each ; stamens of the length of the corolla ; seeds flat, 

 (crown-imperial.) S. 



Scil"la. Corolla 6-petalled, spreading, caducous; filament thread-form, 

 attached to the base of the petals, (squills.) S. 



C. Flowers with a btngle, calyx-like perianth, without a spathti. 



A'coRUs. Receptacle spadix-like, cylindric, covered with florets; calyx 6- 

 parted, naked; corolla 0, (or calyx 0, corolla 6-paned or 6-petalled;) style 0; 

 stigma small; capsule 3-celled, 3-seeded. (sweel-flag) 



Jun"cus. Glume or outer calyx 2valved; perianth inferior, 6-leaved, glume- 

 like, permanent; stigmas 3; capsule I or '2-celled, 3-valved, many-seeded; 

 seeds attached to a partition in the middle of each valve. (rush-grass,'bnlrush.) 



Oron"tium. Spadix cylindrical, crowded with flowers ; perianth G-petalled, 

 naked; stigma 0; capsule bladder-like, 1-seeded. (flowering arum.) 



Luzu'la. Perianth 6-parted, glumaceous; capsule superior, 3-celled, 3-valv- 

 ed ; cells 1-seeded. (false rush-grass.) 



ORDER 11. DYGYNIA. 



Ory'za. Calyx glume 2-va!ved; 1-flowered; corolla 2-valved, adhering to 

 the seed, (rice.) Ex. 



ORDER III. TRIGYNIA. 



Vera'trum. Polygamous; calyx 0; corolla 6-parted, expanding; segments 

 sessile, without glands; stamens inserted upon the receptacle; capsules 3 united, 

 many-seeded. 



Tril"udm. Calyx 3-leaved, inferior, spreading; corolla 3-petalled ; styles 0; 

 stigmas 3 ; berry 3-celled, many-seeded, (false wake-robin.) 



Ru'mex. Calyx 3-leaved ; petals 3, valve-like, converging, (or calyx 6-sepal- 

 led, and corolla 0;) stigmas many-cleft; seed 1, naked, 3-sided, (dock, fielti- 

 sorrel.) 



Melan"thium. Polygamous; perianth rotate, 6-parted; segments with 2 

 glands at the base of each ; claws staminiferous; capsule sub-ovate, 3-celled; 

 apex 3-cleft; seeds many, membranaceous winged, (black flower.) 



Zigade'nus. Perianth 6-leaved, coloured, spreading, with 2 glands above the 

 narrow base of each leaf; stamens inserted in contact with the germ; capsule 

 3-celled, many-seeded. 



Helo'nias. Perianth 6-parted, spreading, without glands; styles 3, distinct; 

 capsule 3-celled, 3-horned ; cells few-seeded. 



Xerophyl"lum. Perianth sub-rotate, deeply 6-parted; stigmas 3, revolute; 

 capsule sub-globose, 3-celled; cells 2-seeded, opening at the top. 



ToFiEL"DA. Perianth 6-parted, with a small 3-parted involucre ; capsule 3 to 

 6-celled; cells many-seeded. 



Scheuchze'ria. Perianth 6-parted; anthers linear; stigmas sessile, lateral; 

 capsule inflated, 2-valved, 1 to 2-seeded. ' 



Triglo'chin. Perianth of 6 deciduous leaves, 3 inserted above the rest; sta- 

 mens very short; capsules 3 to 6, united by a longitudinal receptacle, (arrow- 

 grass.) 



Medeo'la. Perianth 6-parted, revolute ; stigmas 3-divaricate, united at the 

 base ; berry 3-celled; cells 3 to 6-seeded. (Indian cucumber.) 



Sa'bal. Flowers perfect; spathas partial; filaments free, thickened at the 

 base; 1 to 3-seeded, seeds bony, (false fan-palm.) S. 



Cham^'rops. Flowers polygamous; spatha compressed; spadix branched; 

 perianth 3-parted; corolla 3-petalled ; filaments partly united; drupe 3-celled, 

 2 of them often empty. The staminate flowers grow on distinct plants, (fan- 

 palm.) S. 



Calochor"tus. Corolla 6-parted, spreading, 3 inner segments larger, with 

 the upper side woolly; filaments short, inserted on the base of the petals ; an- 

 thers arrow-form ; stigmas reflexed ; capsule 3-celled. )S. 



Noli'na. Corolla 6-parted, spreading, segments nearly equal; styles short; 

 stigmas recurved ; capsule 3-sided, 3-celled; seed 1, convex. §■. 



ORDER Xin. POLYGYNIA. 



Alis"ma. Calyx 3-leaved ; petals 3; capsules numerous, 1-seeded, not opening. 



