Scrophulariaceae 355 



6. PETUNIA Juss. Petunia. 



Viscid-pubescent annual or perennial branching herbs, 

 with entire leaves and axillary or terminal solitary 

 Mown---. Calyx deeply 5-clef1 or 5-parted, the segments 

 narrow. Corolla funnelform or salver-shaped, its limb 

 plicate spreading, slightly irregular. Stamens 5, inserted 

 on the throat of the corolla, 1 of them didynamous, per- 

 fect, the fifth smaller, obsolete : filaments slender. < >vary 

 2-celled; style filiform; stigma 2-lamellate. Capsule 

 2-celled, 2-valved. 



1. P. parviflora (Lehm.) Juss. Small, prostrate or diffusely 

 spreading, more or less pubescent, annual; leaves oblong-linear 

 or spatulate, ratber fleshy, nearly sessile, 12 cm. long or less; 

 peduncles very short; calyx-lobes resembling the smaller leaves; 

 corolla purple, the tube pale or yellowish, 8 mm. long, funnel- 

 form, its lobes short, retuse, slightly unequal; capsule small, 

 ovoid. 



Occasional on margins of ponds and along streams, especially in subsaline 

 places. June-August. 



Family 86. SCROPHULARIACEAE. Fig wort 

 Family. 



Herbs or shrubs with opposite or alternate exstipu- 

 late leaves and perfect irregular flowers. Calyx per- 

 sistent, 4-5-toothed or 4-5-divided. Corolla 2-lipped or 

 nearly regular. Stamens 2, 4 or 5, didynamous or 

 marly equal, inserted on the corolla and alternate 

 with its lobes ; anthers 2-celled or continently 1-eelled, 

 longitudinally dehiscent. Ovary superior, 2-celled or 

 rarely 1-eelled ; ovules mostly numerous, borne on the 

 axillary placentae ; style simple ; stigma entire or 

 2-lobed. Fruit mostly capsular and septicidally or locu- 

 licidallv dehiscent. Seeds often reticulated or striate. 



