SCROPHULARIACEAE 277 



1. Nicotiana rustica L. Wii,D Tobacco. (Man. p. 817 ; I. F. /. 

 322^.) In fields and waste places, Ont., to Minn., N. Y. and Fla. — Penn- 

 sylvania : Northampton. 



2. Nicotiana longiflora Cav. LONG-FI.OWERED Tobacco. (Man. p. 

 817 ; I. F. y". J226.) In waste places, eastern U. S. Native of S. Am. — 

 Pennsylvania: Northampton; Dauphin. 



9. PETUNIA Juss. 

 Corolla white ; tube cylindric. i. P- axillaris. 



Corolla violet-purple ; tube campanulate. 2. P. violacea. 



1. Petunia axiUaris (Lam.) B.S.P. White Petunia. (Man. p. 

 817 ; I. F. /. 3227.) In waste places, N. Y. and Pa. Native of southern 

 Brazil. — Pennsylvania : Northampton ; Philadelphia ; Lancaster ; 

 Dauphin ; Allegheny. 



2. Petunia violacea Lindl. ViOLET Petunia. (Man. p. 817 ; I. F. 

 /. 322S.) In waste places, escaped, N. Y. and Pa. Native of southern 

 Brazil and Paraguay. — Pennsylvania : DELAWARE ; Northampton ; 

 Dauphin; Allegheny. 



Family 10. SCROPHULARIACEAE Lindl. Figwort Family. 



Upper lip or lobes of the corolla external in the bud, or wanting (except in 

 Mimulus). 

 Leaves prevailingly alternate. i. Verbascum. 



Leaves prevailingly opposite. 

 Corolla-tube with a spur or sac on the lower side near the base. 

 Leaf -blades palmately veined and palmately lobed. 



2. Cymbalaria. 

 Leaf-blades pinnately veined and entire. 



Flowers axillary to leaf-like bracts and remote. 3. Kickxia. 

 Flowers approximate, in terminal racemes. 4. Linaria. 



Corolla-tube with neither spur nor sac. 

 Filaments 5, 4 anther-bearing, i sterile ( staminodium ) and different 

 from the others. 

 Staminodium a scale, adnate to the upper side of the corolla-tube. 

 Corolla-tube stouter than the calyx, the lobes of the lower lip indu- 



plicate. 5- Collinsia. 



Corolla-tube longer than the calyx, the lobes of the lower lip flat. 



6. Scrophularia. 

 Staminodium elongated. 



Filaments longer than the staminodium : seeds winged. 



7. Chelone. 

 Filaments shorter than the staminodium : seeds wingless. 



8. Pentstemon. 

 Filaments 2 or 4. 



Trees. 9. Paulownia. 



Herbs. 

 Anther-bearing filaments 4, or rarely 3. 

 Sepals manifestly united. 

 Calyx tubular : corolla 2-lipped. 10. Mimulus. 



Calyx campanulate : corolla essentially regular. 



II. LiMOSELLA. 



