IOWA ACADEMY OF SCIENCES. 143 



Scrophuhiria iiHinjlandica commence opening. On- June 

 2, 1901, we found a large number of specimens of Scrophii- 

 laria leporella in Johnson county in low woods near 

 the Iowa river. This species occupied the woods to the 

 exclusion of Scropkularia marylandica, in fact, as Mr. 

 Bicknell notes, the species, unless by accident, never seem 

 to be associated. Type locality: "Common near New 

 York City." 



PENTSTEMON Solander in Alton Hort. Kew. 3:511. 1789. 



Perennials, with simple stems or stems branched from 

 the base. Leaves opposite, the upper sessile, the lower 

 petioled. Flowers thyrsoid or racemose- panicled, showy. 

 Calyx 5-parted. Corolla, tubular, often inflated, campan- 

 ulate, usually 2-lipped, the upper lip 2-lobed, the lower 

 3-lobed. Stamens 5, four antheriferous, declined below, 

 ascending above, the fifth sterile. Capsule ovoid-conical, 

 with many angular seeds. 



Stem pubescent or puberulent nearly or quite to the base. P. hirsutus. 

 Only the inflorescence or calyx or pedicels pubescent. 



Stem leaves ovate, oblong or lanceolate. P. digitalis. 



Stem leaves linear-lanceolate. P. gracilis. 

 Whole plant glabrous and somewhat glaucous. P. grandiflorus . 



Pentstemon hirsutus (L.) Willd. 



Chelone hirsuta L. Sd. PI. 611. 1753. 



Pentstemon pubescens Solan, in Alton Hort. Kew. 3:360. 1789. 



Pentstemon hirsutus Willd. Sp. PI. 3:227. 1801. 



Stem 1 — 3 feet high, downy-pubescent; leaves oblong to 

 lanceolate, denticulate or entire, radical leaves ovate or 

 oblong; flowers in a narrow panicle; corolla pale-purple, 

 graduall}^ dilated, throat nearly closed by two bearded folds 

 from the lower lip; sterile filament bearded. 



A species ranging from Maine to Florida, west to Onta- 

 rio, Manitoba, Minnesota and Texas. The species occurs 

 in dry woods on hills and bluffs, the flowers opening mostly 

 in June, but often in May and July. In some localities the 

 species is frequent, but generally in the state it is rather 

 uncommon. Type locality: "Hab. in Virginia." 



