CARYOPBYhLACftAK. 137 



Family 5. AIZOAOEAE A. Br. Carpet-weed Family. 



Fleshy aea-coast herbs; leaves opposite; capsule circumscissile. 1. Sesuvium^ 

 Not fleshy; leaves in our species verticillate ; capsule 3-valved. 2. Mollugo. 



1. SESUVIUM L. 

 1. Sesuvium maritimum (Walt.) B. S. P. Sea Purslane. M. p. 384. 

 Sands of the seashore. Summer. 



2. MOLLUGO L. 

 1. Mollugo vbeticillata L. Carpet-weed. M. p. 384. Waste places and 

 cultivated grounds. Summer. * j 



Family 6. PORTULACAOEAE Reichenb. Purslane Family. 



Calyx free from the ovary; capsule 3-valved. 



* Seeds numerous; stamens 10-30. 1. Talinum. 



Seeds not more than 6; stamens 2-5. 2. Claytonia* 



Calyx partly adnate to the ovary; capsule ciTcumscissile. 3. Portulaea. 



1. TALINUM Adans. ' "'' ' 



1. Talinum teretifolium Pursh. Fame Flower. M. p. 385. Serpentine 



barrens. Summer. 



Delaware — Marple, Dr. Geo. Smith (B. Sm.). Chester — Westtown, 



West Chester (Me.) (Pr.), West Bradford Twp. (St.). Lancaster— New 



Texas (Ca.). 



2. CLAYTONIA L. 



1. Clattonia Vikginica L. Spring Beauty. M. p. 385. Moist woods. 

 Spring. 



3. POBTULACA L. 



Glabrous throughout; flowers small, yellow. 1. P. oleracea. 



Pilose pubescent, especially in the axils. 2. P. pilosa. 



1. Poktulaca oleracea L. Purslane. M. p. 386. Cultivated and waste 



grounds. Summer. 



2. Portulaca pilosa L. M. p. 386. Ballast. Summer. 



Camden— Camden (He.). 



Family 7. CARYOPHYLLACEAE Reichenb. Pink Family. 



•Calyx of united sepals, tubular or ovoid. 



Calyx-ribs at least twice as many as the teeth, running both into the 

 teeth and into the sinuses. 

 Styles 5, alternate with the foliaceous calyx-teeth. 1. Agrostemma. 

 Styles 3, rarely 4. 2. SUene. 



Styles 5 and opposite the short calyx-teeth, capsule 1 -celled to 

 base. 3. Lychnis. 



Calyx 5-ribbed, 5-nerved, or nerveless, or striate-nerved. 



Petals appendaged at the base of the blade. 4. Saponaria. 



Petals not appendaged at the base of the blade. 



Calyx strongly 5-angled, not braoteolate. 5. Vaccaria. 



Calyx terete or nearly so, subtended by bractlets. 



6. Dianthus. 



