BORAGINACEAE 157 



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

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



3. MERTENSIA Roth. 



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



1. M. Virginlca (L. ) DC. Blue Bells. Perennial, 1°-2° high, very 

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

 showy, y 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. Virginlca (L. ) B.S.P. Forget-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. LITHOSPERMUM 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. L. arvense. 



Perennial. 2. L. Jatifolium. 

 Flowers bright yellow. 



Stems hirsute. 3. L. canescens. 



Stems appressed-pubescent. 4. L. ImearifoUum. 



1. L. arvense L. Corn Gromwell. 6^-20^ high, appressed-pubes- 

 cent : leaves linear- lanceolate : corolla 3^^ long : nutlets brown and pitted. 

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

 Grain Valley. April-May. 



2. L. latifolixim Michx. Wood Gromwell. U°-3° high, rough- 

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

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

 the Little Blue River ; also near Quindaro, Kansas. May-June. 



3. L. canescens (Michx.) Lehm. Hoary Puccoon. Perennial, 6^- 

 15^ high, hoary : leaves linear-oblong : corolla 6^^ long, not bearded 

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

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



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

 goae-pubescent : leaves linear : corolla V long, its lobes erose-denticulate : 

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

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

 Tank. Local. April-May. 



