260 



THE FLORA. 



2. POLEMO'NIUM. Polemony. 



1 P. coeru'leum. Blue P. Greek Valerian. Stem erect, l-2f. high. Lvs. pinuate, 

 with 11-17 leaflets. Capsule 12-20-seeded. Sometimes Avild. f 



i P. rep'tans. Creeping P. Stem weak, diffuse. Leaves pinnate, with 7-11 leaflets. 

 Capsule 4-6-seeded. Woods, common. Light blue. 



Ordef. XCIII. COFVOLYULACE.E. Bindweeas. 



Herbs twining or trailing, -with alternate leaven : nowers snowy : 



cacyx with 5 much imbncated ftepais, i>ers-ste.nt: 



corolla regular, S-lobed or entire, pjaited and twisted in the bud; 



stamens 5, and style single ; ovary free, oecoramg in 



fruit a pod which is 2j-4-celled and 2-6-seeded ; 



embryo large and leafy, with thin mucilaginous albumen. 



The suborder, Cuscutixe^, consists of small orange-colored, leafless 

 plants, living on other plants (parasites), 

 with small flowers, and no cotyledons 

 (OusouTA, the Dodder). 



Analysis of the Genera. 



§ Ovaries 2, distinct, with 2 distinct styles f 



§ Ovary 1, open, when ripe by 2-4 valves 2 



2 Ovary 2-celled, 2-valved, 4-seeded. . . .3 



2 Ovary 3-celled, 3-valved, 6-seeded b 



2 Ovary 4-ceUed, 4-valved, 4-seeded a 



3 Styles 2, distinct e 



3 Styles united into 1 4 



4 Calyx enveloped in 2 large bracts d 



4 Calyx naked c 



« Stamens exserted. Cor. small (scarce 1' broad). 

 a Stamens included. Corolla large (2' broad), t 



b Beautiful twining vines. Cor. bell-fuunel. 

 c Stamens included. Stigma capitate. 

 c Stamens included. Stigmas 2, linear, 

 e Stamens exserted. Corolla tube slender, t 



d Stigmas 2, obtuse. Corolla bell-form, f 

 e Peduncles longer than the leaves. Soft-downy. 



i Capsules 2, each 1-seeded. Plant very small 



Fig. 610. Entire-leaved Cypress-vine 

 {Quamoclit coccinea.) 



t Ci/press Vine. Quam'oclit. 



Siveet Potato. Bata'tas. 



+ ytorning-glory. Phar''biti3. 



False Bindweed. Ipoirj:^A. 



B'lndiceed. Convol''vulus. 



Good-night. Calyntc'tion. 



Rutland Beauty. Calyste''oia. 



Stylisma. Stylis'ma. 



, prostrate. S. Diohon'pra. 



