Jones: Flora of Illinois, 137. Scrophulariaceae 227 



green; wet ground in woods, local; chiefly in the n. two-thirds of the state. 

 July-Oct. [C. imifolia (Cofeman) Pennell ex Rydb.; C. glabra var. elon- 

 gata Pennell & Wherry] C. glabra L. 



1. Corolla rose-purple; sepals ciliolate; sterile filament whitish; low woods, in 

 the s. and w. counties, local. Aug. -Oct. [C. obliqua var. speciosa Pennell 

 & Wherry] C. obliqua L. 



3. Penstemon Mitch. — Penstemon 



1. Plants more or less glandular or pubescent, at least on the calyces and pedi- 

 cels; corolla 1.5-3 cm. long; leaves denticulate or entire. 

 2. Stem pubescent or puberulent. 



3. Corolla violet-purple, 2.5-3 cm. long, the lobes whitish; stem pubescent; 



bluffs, and dry woods and thickets, local. May-June 



P. hirsutus (L.) Willd. 



3. Corolla white, lined with purple within; stem puberulent. 



4. Corolla 2-2.5 cm. long, the throat narrow, flattened, narrowly ridged 

 within, the anterior lobes projecting beyond the posterior ones; dry 



woods, local. May-June P. pallidus Small 



4. Corolla 1.5-2 cm. long, the throat inflated, only slightly ridged with- 

 in, the anterior lobes scarcely exceeding the posterior ones; near 



Mt. Carmel, Schneck P- deamii Pennell 



2. Stem glabrous below the inflorescence. 

 5. Inflorescence open, paniculate. 



6. Corolla white or tinged with purple; calyx-lobes lanceolate to ovate; 

 sandy soil in fields and thickets, and open woods. May-July. Fox- 

 glove Penstemon P. digitalis Nutt. 



6. Corolla purple; calyx-lobes linear-lanceolate, attenuate; alluvial soil 



and wooded slopes. May-July P. calycosus Small 



5. Inflorescence narrow, interrupted; corolla white or purplish; calyx-lobes 

 ovate, acuminate, 3-4 mm. long, glandular; sandy soil in open woods. 

 May-July P. tubaeflorus Nutt. 



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

 4-5 cm. long, lavender; sandy soil. May-June. Henderson Co., Patterson 

 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 subglobose, dull, 7-9 



mm. long; open woods, throughout 111., except the s. counties. June. \_S. 



leporella Bickn.] S. lanceolata Pursh 



5. COLLINSIA Nutt. 

 C. verna Nutt. Blue-eyed Mary. Moist woods. Apr.-May. 



6. LiNARIA L. 

 1. Flowers in terminal racemes; plants glabrous. 



2. Corolla yellow, 2-3 cm. long; calyx-lobes ovate; roadsides and fields; nat. 



