314 THE FLORA. 



1. NARCIS'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 

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

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

 native, f April-June. 



* Scape bearing 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. Jonqnil'la. Jonquil. Scape terete. Crown yellow, much shorter than 



the yellow sepals. 



4 N. poet'icus. Tbefs Narcissus. 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, green- 



ish-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, lance- 

 olate, spinous-dentate, often striped, t 



ORDER CXLIII. IRIDA'CEzE. The Irids. 



Perennial herbs, arising from bulbs or thickened roots ; 

 leaves 2-rowed ; flowers perfect, regular or irregular, spathaceous ; 

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

 ocary inferior, 3-celled, with 1 style and 3 atigmas, becoming in 

 fruit a 3-celled capsule with many albuminous se^ds. 



Analysis of the Genera. 



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



1 Flowers regular, petals and sepals alike 3 



1 Fls. irregular, stamens ascending. Sds. winged, t Corn Flag. GLADI'OLUS. 

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

 a Stamens united. Sepals very large. Pets, spreading t Tiger-flower. TIGRID'IA. 



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



Blue-eyed grass. SYSIKYN-CHIUM. 



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



3 Fls. yellow, red spotted, tube short. Height 3-5f. t Ifia. PAKDAN'THUS. 



