BOBAGINACEAE 157 



ing pedicels recurved : nutlets covered on the margins and back vfith 

 pricklets. — Common in woods throughont. July-September. 



3. MERTBNSIA Eoth. 



Corolla trumpet-shaped, its throat naked (in ours). 



1. M. Virginloa (L.) DC. Blub Bells. Perennial, 1°-2° high, very 

 glabrous : leaves obovate, petioled : flowers in corymb-like racemes very 

 showy, 1' long. — Locally common in rich woods near Sheffield, Little 

 Blue Tank to Adams, and Grain Valley. April-May. 



4. MYOSOTIS L. 



Corolla salver-form, its throat crested. Flowers in one-sided ra- 

 cemes. 



1. M. Virginica (L.) B.S.P. Fobget-me-not. Hispid- annual, 3'- 

 12' high : leaves linear-oblong to spatulate : fruiting pedicels short : 

 calyx hairs with hooked tips : sepals unequal : flowers small, whitish. — 

 Sandy soil in the Missouri River bottom from Kansas City to Sibley ; 

 possibly not native. April-May. 



5. LITHOSFBRMUM L. 



Corolla salver-form to funnel-form, its throat crested or pubescent. 

 Flowers in leafy- bracted spikes. 



Flowers white or whitish-yellow. 



Annual or biennial. 1. i. arvense. 



Perennial. 2. L. laiifolium. 

 Flowers bright yellow. 



Stems hirsute. 3. L. canescens. 



Stems appressed-pubescent. 4. L. hnearifoKum. 



1. L. arvense L. Corn Geomwbll. 6'-20'' high, appressed-pubes- 

 cent : leaves linear- lanceolate : corolla S" long : nutlets brown and pitted. 

 — Locally adventized in waste places. Westport, Independence, and 

 Grain Valley. April-May. 



2. L. latifolium Michx. Wood Gromwell. 1J°-3° high, rough- 

 puberulent : leaves ovate-lanceolate : corolla 2'''-3''' long : nutlets white, 

 smooth and shining. Earely occurs in rich woods. Westport and along 

 the Little Blue Eiver ; also near Qaindaro, Kansas. -May-June. 



3. L. canescens ( Michx. ) Lehm. Hoaky Puccoon. Perennial, 6'- 

 IS' high, hoary : leaves linear-oblong : corolla S" long, not bearded 

 within, its lobes entire : nutlets white, smooth and shining. — Frequent 

 on prairies and rooky hills throughout the southern part. April-May. 



4. L. linearifolium Goldie. PuccooN. Perennial, 6'-18' high, stri- 

 gose-pnbescent : leaves linear : corolla V long, its lobes erose-denticulate : 

 later flowers small and cleistogamons : nutlets white, smooth and shining. 

 — Rocky woods and prairies near Westport, Waldo Park and Little Blue 

 Tank. Local. April-May. 



