368 DECANDRIA TRIGYNIA. 



M. cordifolia : leaves orbicular-reniform, doubly crenate, with scat- 

 tered hairs above; scape erect or prostrate, naked, or with a single 

 leaf. 



HAB. Moist rocks. June, 'Zj. ; stem slender, with, creeping stolons ; 

 flowers few, white. 



212. SAPONARIA. Soap-wort. 



S. qfficinalis : leaves ovate-lanceolate ; calyx cylindric, smooth. 

 HAB. Waste places, &c. June September, 7J. ; stem 18 inches 

 high) scab. ; Jlowers large, rose-colored. 



213. SCLERANTHUS. Knawel. 



S. annuus : calyx of the fruit spreading, acute ; stem spreading. 

 HAB. Sandy fields. July, <v> ; stem num. ; procumb. ; flowers in 

 axillary fasc., inconspic. . 



TRIGYNIA. 



214. CUCUBALUS. Campion. 



C. Bchen : smooth and glaucous, decumbent ; leaves oblong-oval, 

 acute, nerveless ; calyx membranaceous, with reticulated veins. 



HAB. Rocky hills. July, Ij.; stem 18 inches high, panic., flower 

 large, nodding ; pet. white. 



C. stellatus : erect, pubescent ; leaves verticillate, in fours, oval-lan- 

 ceolate, long-acuminate. 



HAB. Woods. July August, 1J.; stem 23 feet high; pan. 

 term. ; flower white ; calyx not reticulated. 



215. SILENE. Catch-fly. 



S. pennsylvanica : viscidly-pubescent ; radical leaves cuneate ; stem 

 leaves lanceolate ; panicles trichotomous ; petals slightly emarginate, 

 very obtuse, subcrenate. 



HAB. Rocks and sandy woods. May June, Ij.; stem num., 8 

 12 inches high ; flower in term, trichot. panic., purple. 



5. antirrhina: leaves lanceolate, minutely ciliate; panicle trichoto- 

 mous ; calyx ovate ; petals small, bifid, stamens included. 



HAB. Hills and rocky banks. June, ; stem 12 feet high, 

 slender , flower small ; pet. white. 



216. STELLARIA. Stitchwort. 



6. pubera : pubescent ; stem decumbent; leaves ovate-oblong, sessile, 

 acute, subciliate, somewhat undulate, pedicels dichotomal, recurved ; 

 petals longer than the calyx. 



HAB. Shady rocks. May June, 1\. ; stem 6 10 inches long ; 

 flower large, white. 



