212 American Midland Naturalist Monograph No. 7 



chiefly in n. 111., but extending southward along the valley 

 of the Illinois R. May-July. Narrow-leaved Puccoon [L. 

 lincarijolium Goldie; L. angustijolium Michx., non Forsk.] 



L. incisum Lehm. 



4. Corolla-lobes entire, the tube less than 1.5 cm lonar; flowers 

 all complete; leaves lanceolate. 

 5. Stems and leaves hispid-pubescent; corolla light-yellow, 

 pubescent within at the base; sandy soil. May-July. 



[L. gmelini of auth. ; L. croceum Fern.] 



L. carolinicnse (Walt.) MacM. 



5. Stems and leaves soft-pubescent; corolla orange-yellow, 

 glabrous within; nutlets 2.5-3 mm long; sandy or prairie 



soil. Apr. -June. Hoary Gromwell 



L. canescens (Michx.) Lehm. 



1. Annual; corolla white; nutlets gray, wrinkled and pitted; road- 

 sides, waste places and fields, common; nat. from Eur. Apr.- 

 June. Field Gromwell L. arvense L. 



10. Onosmodiuni Michx. — Marbleseed 



1. Leaves and stems shaggy-pubescent; stem 90-120 cm tall; nutlets 

 with a slight constriction or rim at base; dry banks and fields, 

 local. June-July O. hispidissimum Mack. 



1. Leaves and stems grayish-pubescent with mostly appressed hairs; 

 stem 40-60 cm tall; nutlets rounded at base, not at all con- 

 stricted; hillsides, bluffs, and thickets, w. 111., local. June- July 

 O. occidentale Mack. 



1 1. Echium L. 



E. vulgare L. Blueweed. Waste places, roadsides, and fields; nat. 

 from Eiu'. June-Aug. 



12. Borage L. — Borage 

 B. officinalis L. Occasionally adv. in waste ground, or escaped from 

 cult. ; native of Eur. July-Sept. 



13. Anchusa L. — Alkanet 

 A. officinalis L. Roadsides and waste places, occasional; adv. from 

 Eur. May-Oct. 



14. Symphytum L. — Comfrey 

 S. officinale L. Roadsides and waste places, occasional; adv. from 

 Eur.; Champaign Co., Waite; McHenry Co., Nason. 



116. Verbenaceae J.St.Hil. — Verbena Family 



1. Corolla 5-lobed, nearly regular; calyx tubular; fruit splitting into 4 nutlets 



1. Verbena 



1. Corolla 4-lobed and 2-lipped; calyx short, 2-cleft; fruit splitting into 2 

 nutlets 2. Phyla 



