BORRAGINACE^E. 107 



4. CYNOGLOS'SUM, Tourn. HouND's-ToNouE. 



1. C. officina'le, L. (COMMON HOUND'S-TONGUE.) Flowers 

 red-purple. Upper leaves lanceolate, sessile. Stem soft-pubes- 

 cent. Nutlets rather flat. A common weed in fields and along 

 roadsides. 



2. C. Virgin'icum, L. (\\ T ILD COMFBEY. ) Flowers pale blue. 

 Stem roughish with spreading hairs. Leaves few, lanceolate- 

 oblong, clasping. Racemes corymbed, raised on a long naked 

 peduncle. Rich woods. 



3. C. Moriso'ni, DC. (Echinospermum Virginicum, Lehm., 

 in Macoun's Catalogue.) (BEGGAR'S LICE.) Flowers pale blue or 

 white. Stem hairy, leafy, with broadly spreading branches. 

 Leaves taper-pointed and tapering at the base. Racemes pani- 

 cled, forking, widely spreading. Pedicels of the flowers reflexed 

 in fruit. Open woods and thickets. 



5. ONOSMO/DIUM, Michx. FALSE GROMWELL. 



1. 0. Carolinia'num, DC. Stem stout, 3-4 feet high. Leaves 

 ovate-lanceolate, acute. Lobes of the corolla ovate-triangular, 

 very hairy outside. Banks of streams. 



2. 0. Virginia'num, DC. Stem slender, 1-2 feet high. 

 Leaves narrowly oblong. Lobes of the corolla lance-awl-shaped, 

 sparingly bearded outside with long bristles. Banks and hillsides ; 

 not common. 



6. L.ITHOSPER/MUM, Tourn. GBOMWELL. PUCCOON. 

 * Corolla almost white. Nutlets wrinkled, gray. 



1. L. arven'se, L. (CORN GROMWELL.) Stem 6-12 inches 

 high, erect. Leaves lanceolate or linear. Sandy banks. 



* * Corolla deep yellow. Nutlets smooth and shining. 



2. L. hirtum, Lehm. (HAIRY PUCCOON.) Stem 1-2 feet 

 high, hispid. Stem-leaves lanceolate or linear ; those of the 

 flowering branches ovate-oblong, ciliate. Flowers peduncled. 

 Corolla woolly at the base inside. Dry woods. 



3. L. canes'cens, Lehm. (HOARY PUCCOON. ALKANET.) 

 Stem 6-15 inches high, soft-hairy. Corolla naked at the base in- 

 side. Flowers sessile. Limb of the corolla smaller, and the calyx 

 shorter, than in No. 2. Open woods and plains. 



