292 • THE FLORA. 



1. NAROIS'SUS. Jonquil. Daffodil. 



Perianth regular, crown of one piece, funnel-form or bell-form, consist- 

 ing of a whorl of sterile petal-like filaments united by their edges, wjthin 

 which the fertile stamens are inserted.— A beautiful genus of bulbous 

 plants with sword-shaped leaves and yellow or white flowers. None here 

 native, t April-June. 



* Scape bearing 1-3 large flowers 2-4 



* W. Tazet'ta. Polyanthus. Scape many-flowered, sep. white, crown yellow, short. 



2 W. Daffodil. Daffodil. Scape 2-edgecl. Sepals whitish. Crown yellow, long 



and large. 

 8 N. Jonquil'la. Jonquil. Scape terete. Crown yellow, much shorter than the 



yellow sepals. 

 4 W. poet'ious. Poefs Narmsus. Scape terete. Crown variegated, rotate, short ; 



sepals mostly white. 



2. AGA'VE. American Aloe. 



1 A. Viiginioa. False Aloe. Scape simple, 5-6f. high. Flowers in a spike, greenish- 



yellow. Leaves linear-lanceolate, serrate. - Penn. S. 



2 A. America'na, Century Plant. Scape branched, 15-25f. high, bearing 1 vast 



panicle of yellow flowers, after many years. Leaves very thick, lanceolate, 

 spinous-dentate, often striped, t 



Order CXLIII. IRIDA'CE^. The Irids. 



Perennial herbs, arising from bulbs or thickened roots ; 

 leaA)es 2-rowed ; flowers perfect, regular or irregular, spathaceous ; 

 perianth of 6 petal-like segments ; stamens 3 ; anthers turned outwards ; 

 ovary inferior, 3-celled, with 1 style and 3 stigmas, becoming in 

 fruit a 3-celled capsule with many albuminous seeds. 



Analysis of the Genera. 



1 Flowers regular, 8 petals unequal to the 8 sepals. .-. .2 



1 Mowers regular, petals and sepals alike 8 



1 Fls. irregular, stamens ascending. Sds. winged, t Corn Flag. GJadi'olus. 

 2 Stamens separate. Stigmas petal-like. Petals erect. Sepals reflexed. Iris. 1 

 2 Stamens united. Sepals very large. Pets, spreading, t Tiger-flower. Tighid'ia. 



8 Flowers blue, small, rotate. Leaves, &c., grass-like. (Fig. 48.) 



Blue-eyed-grass. Sysieyn'chium. 



8 FIb. purp., white or yellow, tube very long, sessile on the bulb, t Cro'ous. 



8 Fls. yellow, red-spotted, tube short. Height 3-6f. t Ixia. Pardan'thus. 



