314 THE FLORA. 



1. N"ARCIS'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, within 

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

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

 uiitive. t Aprilr-June. 



* Scape beariiig 1-3 large flowers 2-4 



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



2 N. Daffodil. Daffodil. Scape 2-edged. Sepals whitish. Crown yellow, long 



and large. 



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



yellow sepals. 



4 N. poet'icus. Poefs jVai'cissus. Scape terete. Crown variegated, rotate, short; 



sepals mostly white. 



2. AGA'VE. American Aloe. 



1 A. Virginica. 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, 15-2.5f. high, bearing 1 vast 



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

 spinons-dentate, often striped, f 



Order CXLIII. IRIDA'CE.E. The Irids. 



Perennial Jievhs^ arising from bulbs or thickened roots ; 

 leates 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 8 stigmas., becoming in 

 fruit a 3-celled capsule with many albuminous seeds. 



Analysis of the Genera. 



1 Flowers regular, 8 petals unequal to the 3 sepals 2 



1 Flowers regular, petals and sepals alike. . . .3 



1 Fls. irregular, stamens ascending. Sds. winged, f Corn Flag. Gladi'olus. 

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

 2 Stamens united. Sepals very large. Pets, spreading, f Tiger-flower. Tigrid'ia. 



3 Flowers blue, small, rotate. Leaves, &c., grass-like. (Fig. 4S.) 



Blue-eyed- grass. Sysiryn'chu'm. 



3 Fls. purp., white or yellow, tube very long, sessile on the bulb, t Cro'cus. 



8 Fls. yellow, red-spotted, tube short. Ile'ght 3-5f. t I-cia. Paruan'tuiis. 



