436 REPORT OF NEW JERSEY STATE MUSEUM. 



dd. Styles 3, flowers white or pink. 



e. Calyx not inflated at flowering time. 



/. Plant pubescent and viscid; flowers large, white, 

 blooming at night. {Silene noctifloraY 



ff. Stem with a portion of each joint glutinous, otherwise 

 nearly glabrous, flowers small, pink, blooming tran- 

 siently in sunshine. S. antirrhina, p. 438 

 fff. Plant more or - less viscid — pubescent, flowers 20-30 

 mm. broad. 



g. 3-6 dm. high, flowers crimson. 5*. virginica, p. 437 

 gg. 1-2.5 dm. high, flowers pink. 5". caroliniana, p. 437 

 ee. Calyx bladdery-inflated, flowers white. 



d. Petals fringed. S. stellata, p. 437 



dd. Petals, two-cleft. [S. latifolia]* 



cc. Obscurely-nerved, terete or five-angled, flowers white, tinged with 



pink. [Saponaria oMcinalii]' 



aa. Sepals distinct or nearly so, low herbs with white or red petals or none. 



b. Fruit a dehiscing capsule. 



c. Stipules present, flowers pink-red. 



d. Plants fleshy, stipules ovate or deltoid. Tissa^ marina, p. 442 

 dd. Plants not fleshy, stipules lanceolate. [Tissa rubra]" 



cc. Stipules none. 



d. Plants fleshy, forming dense mats on the seashore. 



Ammodenia, p. 441 

 dd. Plants not fleshy. 

 e. Petals two-cleft. 



/. Cleft nearly to the base, styles 3. 



g. Stems and flower stalks glabrous. 

 h. Petals shorter than the sepals. 



Alsine uliginosa, p. 438 

 hh. Petals longer than the sepals. 



A. longifolia, p. 468 

 gg. Stems and flower stalks pubescent. 



[A. mediaY 

 ff. Petals cut half-way, styles 5 or 4. 



g. Petals much longer than the sepals. 



Cerastium arvense, p. 439 

 gg. Petals about equaling the sepals.. 



h. Pedicels not longer than the sepals, flowers 

 glomerate. [C. viscosumY 



hh. Pedicels at length longer than the sepals, 

 flowers cymose. 



Perennial, tufted. [C. vulgatumY 



" Night-flowering Catchfly, occasional in waste ground. 



* Bladder Campion, occasional in waste ground. 



° Bouncing Bet. Very common roadside weed. 



" Purple Sand Spurry, a weed especially on the coast. 



' Common Chickweed. This and the next two familiar garden weeds. 



' Mouse-ear chickweed. 



"Larger Mouse-ear Chickweed. 



