138 FLORA OF PHILADELPEIA. 



**Calyx of distinct sepals, or the sepals united only at the base. 

 Fruit a capsule, dehiscent by apical teeth or valves. 

 Styles separate to the base;, stipules wanting. 



Plants not fleshy; disk of the flower inconspicuous or none. 

 Petals deeply 2-cleft or 2-parted (rarely none). 

 Capsule ovoid or oblong, dehiscent by valves. 



7. Alsine. 

 Capsule cylindric, commonly curved, dehiscent bjy 

 teeth. 8. Cerastium. 



Petals entire or emarginate (rarely none). 



Capsule 1 cylindric. •'• 9. Solosteum. 



Capside ovoid, or oblong. 



Styles as many as the sepals. TO. Sagina. 

 Styles fewer than the sepals. ■: 



Seeds not appendaged by a strophiole. 

 .-,..,, . 11- Arenaria. 



Seeds strdphiolate. 'T'!m'" 12. Moehfmigia. 

 Plants fleshy, maritime, disk conspicuous, 8-10-lobed. 



1 13. Ammodeiiia. 



\ 'Styles separate to the base;, stipules scarious. 



Styles 'and capsule-valves 5. 14. Spergula. 



Styles and capsule-valves 3.' 15-. Tissa. 



Fruit an indehiscent or irregularly-bursting utricle or achene. 

 Leaves stipulate. • ' ■ 

 , , , Sepals awn-tipped. 16. Paronychia. 



Sepals awnless. 17. AwycMa'J .' 



Leaves not stipulate. IS.i SaleTanthus. 



■'•'.'.' .'.:»-.. 1, AGROSTEJklMA L. 

 1. Agrostemma Githago L. Corn Cockle. M. p. 388. In grain fields ( and 

 waste places. Summer. / . , , 



' "2. SIL'eNE L. 'CAtCIIfly, Campion. 



Leaves, or some of them, verticillate in 4's. 1. 8: stellata. 



Leaves all opposite. "' . 'ui 



Caiyx much inflated and bladdery. 



Plowers few, leafy-brac'ted. , 2. 8. alba. 



Mowers numerous, in leafless cymes. 3. S. vulgaris. 



Calyx merely 'expanded by the ripening pod. . 

 Flowers cymose or paniculate. 



Day -blooming, flowers rarely white, mostly "pink or red. 



Perennials, more or less viscid-pubescent. • , , 



Petals 2-cleft, 2-lobed, or irregularly incised, scarlet 



or crimson. 4. 8.' Tirginica. 



Petals erose, entire or emarginate, pink. 



;,'.,-.. • ,. 5. 8. Caroliniana. 



Annuals, glutinous at or below the nodes. 



Calyx ovoid,;, , 6. 8. antirrhina,. 



Calyx club-shaped; flowers large, cymose. 



7. S. . A'rmeria. 

 Night-blooming, flowers -large, white. 8. 8. noctiflora. 



Flowers spicate or racemose, short-pedicelled. 



'Spike-like, raceme, simple ; flowers smaiL 9. S. Anglica. 

 Eaceme forked; flowers 12-16 mm. broad. 10. #. dichotorna. 



1. Silene stellata (L.) Ait. Starry Campion. M. p. 389, Woods. 



Summer. 



2. Silene alba Muhl. M. p. 389. Shaded or moist places. Summer. 



, . Lancaster — Peach Bottom (Ca:) (Pr.), York Furnace (Cr.) (Le.), 

 mouth of Tucquan Creek (St.), Safe Harbor (W. Tr.). 



