178 THE FLORA. 



5 L corona'ta. Chinese L. Petals very broad, frLiged with numerous teeth t 

 L. Floscu'culi. Ragged Eo>4n. Petals divided into 4 long teeth, crowned, t 



4. CEKAS'TIUM. Mouse-ear. Chickweed. 



Sepals 5, ovate, acute. Petals 5, bifid or 2-cleft. Stamens 10, some 

 times 5 or 4. Styles 5. Capsule cylindrical or roundish, opening at top 

 by 10 tooth-like valves. Seeds numerous. Fls. white, in cymes. (Fig. 114. 



Petals about as long as the calyx. Plants hairy 1,2 



Petals much longer than the calyx. Plants hairy or downy 3, 4, 5 



1 C. vulga'tum. Common M. Lvs. obovute. Sepals acute. Fls. at first crowded. 



2 C. visco'sum. Stick;/ M. Hairs sticky. Leaves lance-ovate. Sepals obtu.se. 



8 C. arven'so. Field M. Lvs. linear. Ripe pods as long as the calyx. N. . 



4 C. oblongifolinm. Leaves lance-obi. Pods longer than calyx. M. 



8 C. nn'tans. Nodding M, Ripe pods curved, thrice longer than calyx. N W 



5. MOLLU'GO. Carpet weed. 



Sepals 5. Petals 0. Stamens 3-5, opposite to the sepals. Styles 8. 

 Capsule 3-celled, 3-valved, many-seeded. Low or prostrate herbs, 

 with the leaves appearing whorled. 



M. verticilla'ta. Stems slender, jointed, much branched, lying flat on the ground. 

 At each joint stands a whorl of wedge-shaped or spatulate leaves of unequal 

 size, usually about 5 iu number, and a few flowers, each solitary on its stalk, 

 which is shorter than the petioles. Flowers small, sepals white inside. Iu dry 

 places. July-Sept. 



ORDER XXII. PORTULACACE^E. The Purselanes. 



Herbs with thick, entire leaves, no stipules, and regular flowers ; 

 flowers with 2 sepals, 5 petals, open only in the sunshine ; 

 stamens opposite to the petals when of the same number, often more ; 

 pistils several, with their ovaries united, free, or half-free, forming hi 

 fruit a pyxis ( 178) or a capsule. 



Analysis of the Genera. 



1 Sepals five, Petals none. Fruit a pyxis. Stamens oo. Sea Purse lane. SESU'VIDM. 

 1! Sepals 2. Petals 5.... a 



a Stamens 5, opposite the peti.ls. Spring Beauty. CLAYTO'NIA. I 



1 a Stamens 8-3<>, on the torus. Pod 3-vaJved. TAU'NUII. 



a Statren* 8-80, on the ea.yx Pyxis opening by a lid. PORTULA'OV 9 



