COXYOLYFLAf E.E S< >LAXA('E.3E 



329 



white, opening once at night, with a slender fcuhe and a large limh 1-6 in. 

 across. Trop. Amer. Perennial. 



, r -p^- I. purpurea, Roth. Morning-glory. Pig. 217. Leaves 



^S$&F~'^l Droa dly cordate-ovate, entire: flowers 2-4, large ami funnel- 



^'/ \^^B shaped, 2-3 in. long, purple to streaked and 



^ < jfr i . white Trop. Amer. Annual. 



/) . I. hederacea, Jacq. Leaves heart-shaped, 



y jagfrhf V .'!-."> lohed : (lower* 1-.'!, rather smaller than tlm-e \ 



/ ^!T^ ' of I. purpurea. Trop. Amer. Annual. \ 



*^ ID I. Batatas, Poir. Sweet potato. Creeping: 



** leave* heart-shaped to triangular, usually lobed: f\/ 



186. [pomoea flowers (seldom seen) :: or 4. light purple, 

 BonaXox. (hinnelform, l 1 .. in. long. Tropics; 

 grown for its large edihle root-tubers. . 



Li. CUSCUTA. DODD1 i 



Parasitic twiners without foliage ( leaves reduced 

 to scales I : flowers in clusters, the calyx and corolla 



with 4-5 lobe8 : fruit 2-lOCUled, 4-*eeded. ( See p. > 



C. Gronovii, Willd. (Pig. 187), is the common- / vV" 



e*t siiecies, twining it> -h-uder coral-yellow stems 

 over coarse herbs in swales: corolla bell-shaped, i-:. Cuscuti 

 the tube longer than the blunt and spreading lobes. Gronovii. 



r 

 xxii. solaxack.i:. Nightshade Family. 



Herbs or Bhrubs, with alternate often compound leaves: flowers 



perfect ami regular, 5 merous, mostly rotate or open -bell -shaped 

 in form and plaited in the bud: stamens .">, often connivenl around 



(lie single 2-loculed pistil, borne on th rolla: fruit a berry or 



capsule, 'the latter soinctimea i loculed by a false partition), the 

 seed* borne <>n a central column. Some 70 genera and 1,500 Bp< 

 Common representatives are nightshade, potato, tomato, bask ton 

 tobacco, jiinsHii- weed, petunia. 



a. Fruit a fleshy berry. 



ii. Stamens with anthers equaling or exceeding the flla 

 menl b. 



. Anthers separate, opening al top 1 . 8olanvm 



00. Anthers united, opening lengthwise 2. Lycoj 



lip.. Stamens with anthers much shorter than filament 

 .\ \. Frail a capsule. 



li. Calyx ."e parted to mar the base i P 



bb. Calyx toothed, not dc.p parted. 



0. Pod usuall) prickly, large P 



oo. Pod not prickly, small . . 0. A 



