DICOTYLEDONS. 95 



3. D. BREViFOLiA Pui'sh. Short-leavp:d Sundew. Rhizome 

 none ; leaves short, wedge-shaped, glandular-pubescent ; scape 3-6- 

 flowered, 3-6 in. high ; jflowers white, | in. wide ; seeds ovoid, 

 minutely glandular. March- April. Low, sandy pine barrens. 



51. CRASSULACEJE. ORPINE FAMILY. 



Herbs, usually succulent; leaves alternate or opposite, 

 simple, ex stipulate ; flowers perfect, regular, cymose or rarely 

 solitary ; calyx 4-5-cleft, persistent ; petals as many as the 

 sepals, often slightly united at the base, usually persistent, 

 sometimes wanting ; stamens as many or twice as many as 

 the petals ; carpels as many as the petals, distinct, or united 

 below ; fruit a membranaceous, 1-celled, many-seeded follicle. 



PENTHORUM. 



Perennial ; stem erect, branched above, only slightly suc- 

 culent ; leaves alternate, serrate, sessile ; flowers in cymes ; 

 sepals 5 ; petals 5 or wanting ; stamens 10 ; carpels 5, united 

 about half their length, many-seeded. 



P. SKDOIDES L. Ditch Stonecuop. Stem terete below, branch- 

 ing and angled above, glabrous, 1-2 ft. high ; leaves lanceolate or 

 elliptical, acuminate, finely serrate ; flowers yellowish, short-pedi- 

 celed, on one side of the revohite branches of the cyme ; sepals 

 triangular, acute, shorter than the capsule ; petals often wanting. 

 June-September. Common in ditches and muddy places. 



52. SAXIFRAGACEiE. SAXIFRACxE FAMILY. 



Herbs, shrubs, vines or trees ; leaves alternate, ojiposite or 

 basal; sti))uli's adiiate to the })etioles or wanting; flowers 

 perfect or imperfect, solitary or variously clustered ; calyx of 

 4-5 more or less united se])als, free or jiartially adherent to 

 the ovary; petals as many as the sepals or sometimes want- 

 ing; stamens as many or twice as many as the sepals, in- 

 serted on the calyx ; ovaries 1-4, commonly united below 

 and often se})arated above; fruit a capsule or berry. 



