170 COMMON CANADIAN WILD PLANTS. 



6. MERTEN'SIA, Both. LuNGWOET. , 



1. M. panicula'ta, Don. Filaments broad and short. 

 Nutlets wrinkled when dry. ^ Plant. more or less tairy, erect, 

 Icosely branched. — N.W. 



2. M. marlt'ima, Don. (Sea-Lungwobt.) Corolla white, 

 trumpet-shaped, oonspieuously 5-lobed, throat crested. 

 Leaves fleshy, glaucous, ovate to spathvilate.' Stems spread- 

 ing, often decumbent. Filaments longer and narrower than 

 the anthers. Nutlets shining. — Atl. soa-coast. 



7. ONOSMO'DHIM, Michx. Fai.se Gkomwell. 



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

 Leaves narrowly oblong. Lobes of the corolla lance-aid- 

 shaped, sparingly bearded outside with long bristles. — Banks 

 and hillsides ; not common. 



8. OTHOSPEK'MUM, Tourn. Gromwell. Puccoon. 

 ■" Corolla almost white. Nutlets wrinkled, gray. 



1. L. arven'se, L. (Cokn Gromwell.) Stem 6-12 inches 

 high, erect. Leaves lanceolate or linear. — Waste grounds 

 and in wheat-fields. 



* » 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. Pldwers 

 peduncled. Corolla woolly at the base inside. — Dry woods. 



3. L. eanes'eens, Lehm. (Hoary Puccoon. Alkanbt.) 

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

 base inside. Plovvers sessile. Limb of the corolla smaller, 

 and the calyx shorter, than in No. 2.— Open, woods and- 

 plains. 



4. L. angustifo'lium, Michx. Erect or diffusely branched 

 from the base, somewhat hoary. Leaves all linear. Flow- 

 ers pedicelled, leafy-bracted, of two sorts : the earlier large 

 and conspicuous, the later small and pale. — N.W. 



