30 DIALYPETALOtTS EXOGENS 



VIRGINIAN ELODEA. 



Whole plant mostly of a purplish hue. Stem 18 inches to 2 feet high, smooth. 

 Leaves 1 to 2 inches long, pellucid-punctate, glaucous beneath. Peduncles terminal 

 and axillary, mostly trichotomous. Flowers dull orange-purple, with parallel 

 purple veins. 

 Hob. Swampy low grounds ; Wynn's meadows : rare. Fl. July. Fr. Sept. 



ORDER XVI. CARYOPHYLLA V CEAE. 



Herbs ; stems nodose, usually tumid at the nodes ; leaves mostly opposite and en- 

 tire, often subconnate, rarely stipulate; flowers symmetrical, terminal, of 4 or 5 

 parts, the petals sometimes wanting ; stamens as many, or often twice as many, as 

 the sepals ; styles 2 to 5 ; capsule 2- to 5-valved; seeds attached to the base or central 

 column of the capsule : embryo curved around the outside of mealy albumen. A 

 numerous order, which includes the pretty and fragrant Pinks, so much admired 

 by Florists. 



SUBORDER I. SILE^NEAE. 



Sepals united into a tubular calyx ; petals 5, each with a long slender claw, Inserted, 

 with the stamens, on the stipe (carpopftore) of the ovary ; capsule partially 2- to 

 5-celled; stipules none. 



f Calyx Moothed ; petals sometimes crowned, 



51. SAPOtfA v RIA, L. 



[Latin, Sapo, soap ; its mucilage affording a substitute for that article.] 

 Calyx cylindric. Stamens 10. Styles 2. Capsule partly 2-celled at 

 base, opening with 4 teeth at apex. 



1. S. officinalis, L. Leaves oval-lanceolate; flowers in corymbose 

 fascicles ; petals crowned at throat. 

 OFFICINAL SAPONABIA. Soap-wort. Bouncing Bet. 



Perennial, Stem 12 to 18 inches high. leaves an inch and a half to 3 inches long. 

 Flowers pale red or reddishvwhite, often becoming somewhat double. 

 Hal). Gardens, and waste places. Nat, of Europe. Fl. July. Fr. Aug. 



52. SIUME, L, 



[Gr. Sialon, saliva; from the frothy, viscid matter, on some species.] 

 Calyx inflated, or subcylindric. Stamens 10, Styles 3. Capsule 

 partly 3-celled at base, opening with 6 teeth at apex. 



1* S. stclliitti, Ait. Leaves verticillate in fours, oval-lanceolate, 

 acuminate ; calyx loose and bladder-like ; petals cut into a fringe, 

 not crowned. 

 STELLATE SILENE. Four-leaved Campion. 



Plant pulverulently pubescent, perennial. Stem 2 to 3 or 4 feet high, slender and 

 simple. Leaves 1 to 3 inches long, sessile. Flowers white, in an open terminal 

 pyramidal panicle. 



Hob. Woodlands: frequent. Fl. July. Fr. Aug. 



2. S. antirrliina. L. Leaves opposite, linear-lanceolate, acute ; 



calyx ovoid, 10-ribbed; petals bifid, minutely crowned, small and 



fugacious. 



ANTIRRHINUM-LIKE SILENE. Catch-fly. 



Annual. Stem 1 to 2 or 3 feet high, paniculately branching above, portions of 

 the internodes at length coated with a dark-purple viscid matter. Leaves 1 to 2 

 inches long. Flowers white, often tinged with purple, on slender peduncles, in a 

 loose terminal trichotomous panicle; petals often wanting, or missing. 



