CARTOPHTLLACEAB 33 



as many as the sepals, and opposite them. Capsule elongated, 

 opening at apex with 10 teeth, many-seeded. Flowers white, 

 f Petals about as long as the calyx. 



! C. vulg&tum, L. Very hairy; leaves oval and obovate, obtuse; 



sepals longer than the pedicels. 



COMMON CERASTIUM. Mouse-ear Chickweed. 



Annual f Stems 5 to 8 or 10 inches long, rather erect, mostly dichotomous at 

 summit. Leaves half an inch to near an inch long, rounded at apex, sessile and 

 eubconnate. Flowers in terminal cymose clusters, with 1 dichotomal. Capsule 

 eubcylindric, slightly curved, twice as long as the calyx. 

 Hdb. Grassy banks. Nat. of Europe. Fl. May. Fr. June. 



a. C. viscdsum, L. Pubescent and somewhat clammy ; leaves lance- 

 oblong, rather acute ; sepals shorter than the pedicels. 

 CLAMMY CERASTIUM. Larger Mouse-ear Chickwe|d. 



Perennial f Stems 6 to 12 or 15 inches long, cespitose, spreading, dichotomously 

 paniculate at summit. Leaves half an inch to an inch long, sessile. Flowers 

 dichotomal and axillary. Capsule one half longer than the calyx. 

 Hab. Pastures, and open woods. Nat. of Europe. Fl. May. Fr. June. 



Obs. This species has become much more common than the pre- 

 ceding. 



f- f Petals much longer than the calyx. 



3. C. nutaiis, Rafin. Viscid-pubescent; leaves linear-lanceolate, 

 acute ; flowers paniculate, nodding on long peduncles. 



NODDING CERASTIUM. 



Annual* Stems 8 to 12 or 15 inches high, usually several from the same root, 

 nearly simple. Leaves 1 to 2 or 3 inches long, sessile and clasping. Panicle ter- 

 minal, dichotomous, the branches finally much elongated. Capsule nearly three 

 times as long as the calyx. 

 Hab. Moist low grounds : frequent. Fl. May. Fr. June. 



Obs. This species ought to have been the viscosum, as it is much 

 more clammy than the preceding. 



4. C. OblOIll?! folium, Torr. Densely villous; leaves oblong 

 or ovate-lanceolate, subcoriaceous ; peduncles spreading and some- 

 what viscid. 



C. villosum. Muhl. $ FL Cestr. ed. 2. p. 279. 

 OBLOXG-LEAVED CERASTIUM. 



Perennial. Stems 6 to 10 or 12 inches high, cespitose, erect or decumbent, mostly 

 simple. Leaves about an inch long, sessile and subconnate. Panicle elongated , 

 often three times dichotomous, with a longish 1-flowered pedicel in the forks. 

 Flowers rather conspicuous. Capsule about twice as long as the calyx. 

 Hjb. Banks of Serpentine rock : frequent. Fl. May. Fr. June. 



Obs. In 1811, Dr. BALDWIN sent this plant (collected on "the 

 Barrens, Chester County ") to Dr. MUHLEXBERG, who pronounced 

 it a new species, and proposed to call it C. lanatum. In 1813, he 

 published it, in his Catalogue, by the name of C. villosum. In 1820, 

 Prof- D. B. DOUGLASS collected it at Sandusky, Ohio ; and a descrip- 

 tion (without a name), by Dr. TORRE Y, was published in 1822, in 

 SILLIMAN'S Journal, vol. 4. p. 63. In his Flora, published in 1824, 

 Dr. TORREY gave it the name of C. oblongifolium. 



