ALSINE^. (cniCKWEED FAMILY.) 



147 



1, €r, segetum, Desf. Corn Cockle .4 to .6, appressed- 

 canescent. Leaves linear-lanceolate. Calyx-lobes linear-lnceolate, much 

 longer tlian tube, and purple^ obovate, somewhat retuse petals — April 

 to July — Fields ; common. 



2. Cr. gracili§, Boiss. slender Cockle .3 to .5, appressed- 



canescent. Leaves linear. Calyx-lobes linear, shorter than tube and 

 pinJc^ obovate or obcordate petals — Fields ; Marasli and northward. 



Order XIV. ALSIKJE^, DC. (Chickwhed Family). 



Herbs or shrubhy jpla7its^with opposite^ stipulate or ex- 

 stvpulate leaves, regular floioers composed of 4-5 distinct, 

 persistent sepals, 4-5 (rarely OJ petals, generally imbri- 

 cated in the bud, stamens inserted at the base of the sessile, 

 l-celled ovary, or into a hypogynous dish ; seeds with peri- 

 pheral embryo — Petals short clawed or sessile. Stamens 

 3-10 ; anthers 2-celled. Style 2-5, rarely T. Capsule dehis- 

 cent by teeth or valves ; seeds many or few. 



Fig. 71. 



(a) Branch of an Arenaria 

 with fourpairs of opposite leaves, 

 a 2-flowered cyme, two small 

 bracts at the base of each pedi- 

 cel, and one flower, and one 

 capsule with three styles. 

 (6) A flower magnified 3 dia- 

 meters, showing the 5 petals, 10 

 stamens, and 3-valved capsule, 

 surmounted by 3-styIes. (c) A 

 seed divided lengthwjse to 

 show the peripheral embryo. 



TRIBE f. SABULINE^. Stipules 0. Valves of capsule undivided, as many an 

 styles or fewer. 



* Styles as many as sepals, alternating with them. 



1. SAGINA. Stamens (in ours) 4. Petals minute or 0. Dwarf weeds, flowers minute, 



green. 



* * Styles 2-3 (rarely 4-7) opposite the external sepals. halves oj capsule 2-3, alternate with 



sepals, 



2. BUFFONIA. Petals 4. Styles 2. Ovary 2-10-OTuled. 



