108. SCROPHULARIACEAE 199 



5. Inflorescence strict; corolla white, nearly funnelform, the 

 lobes widely spreading-; calyx-lobes ovate-lanceolate, 3-5 



mm long; sandy soil in open woods. May- July 



P. tuhaeflorus Nutt. 



5. Inflorescence open, paniculate; corolla gradually enlarged 

 upward, the lobes erect or ascending. 

 6. C'alyx-lobes ovate-lanceolate, acuminate, evidently scarious- 

 margined; anthers hirtellous; corolla white or purple- 

 tinged; stem glabrous, glossy; sandy soil in fields and 

 thickets, and open woods. May-July. [P. alluviorum 



Pennell] Foxglove Penstemon P. digitalis Nutt. 



6. Calyx-lobes linear-attenuate; corolla more or less violet- 

 purple ; anthers glabrous ; stem finely puberulent to near- 

 ly glabrous, dull; alluvial soil and wooded slopes. 



May-July P. calycosus Small 



1. Plants glabrous throughout and somewhat glaucous; leaves entire, 

 obtuse, the upper nearly orbicular; corolla 4-5 cm long, laven- 

 der; sandy soil. May-June. Henderson Co., Patterson in 1873; 

 apparently the only 111. collection P. grandiflorus Nutt. 



4. Scrophularia L. — Figwort 

 1. Corolla dull; sterile stamen brownish-purple; capsules ovoid, 



glossy, 4-7 mm long; woods throughout 111. July-Sept 



S. marilandica L. 



1. Corolla glossy; sterile stamen greenish-yellow; capsules subglo- 



bose, dull, 7-9 mm long; open woods in the northern half of 111.; 



extending southward to Cumberland Co. June. [S. leporella 



Bickn.] S. lanceolata Pursh 



5. Collinsia Nutt. 



1. Pedicels mostly longer than the corollas; corolla-lobes retuse, the 

 upper lip white; seeds 2.5-3 mm long; moist woods, locally 

 throughout 111. Apr.-May. Blue-eyed Mary C. verna Nutt. 



1. Pedicels about as long as the corollas; corolla-lobes deeply notched, 

 the upper lip pale lilac or whitish; seeds 1-1.5 mm long; sandy 

 soil on hillsides in open woods near Shelbyville in 1947, U. L. 



Evans, G. D. Fuller, & G. N. Jones. Violet Collinsia 



C. violacea Nutt. 



6. Linaria Mill. — Toadflax 

 1 . Flowers yellow. 



2. Leaves linear, narrowed at base; roadsides and fields; nat. from 

 Eur. May-Sept. Butter-and-Eggs L. vulgaris Hill 



2. Leaves ovate to ovate-lanceolate, clasping; a garden escape, 



sometimes persisting; native of Eur L. dalmatica (L.) Mill. 



1. Flowers blue (or white). 



3. Corolla 5-10 mm long, the spur 2-4 mm long; seeds smooth; 



