BORRAGINACE&. 263 



3. Symphytum. Calyx 5-parted. Corolla tubular-campanulate, 

 inflated above, 5-parted ; segments short, spreading. Stamens included 

 in the corolla. Style filiform. Achenia smooth, perforated. 



S. OFFICINALE (Comfrey). Hairy ; stem erect, branching above ; lower 

 leaves ovate-lanceolate ; upper ones decurrent ; flowers in i-sided, nodding 

 racemes ; corolla yellowish-white, occasionally pink or red ; sepals lanceo- 

 late. In low grounds, 3-5 feet high. June-August. 



3. Lithospermum. Calyx 5-parted, persistent. Corolla funnel- 

 form ; limb 5-lobed ; throat open at the orifice. Stamens included in 

 the corolla. Anthers oblong. Achenia smooth or rugose. 



L. ARVENSE (Cromwell). Stem erect, slender ; leaves lanceolate, sessile, 

 entire ; flowers in nodding racemes, which become erect and elongated ; 

 lower flowers remote. In dry grounds, 6'-i2' high. June-July. 



4. Mertensia. Calyx 5-parted. Corolla-tube cylindric, expand- 

 ing ; limb 5-lobed. Stamens inserted. Style long, filiform. Achenia 

 smooth or somewhat wrinkled, y. 



M. VIRGINICA ( Virginian Lungwort). Smooth, stem erect, simple ; 

 leaves obovate, ovate ; entire, pale green ; flowers large, in racemes, desti- 

 tute of bracts, corolla brilliant purplish blue, rarely white. In rich woods, 

 io'-2o' high. May. 



5. Myosotis. Calyx 5-cleft. Corolla salver-form ; tube as long as 

 calyx, 5-lobed ; throat with 5 short, concave scales. Achenia ovate, 

 smooth, flattened. 



M. PALUSTRIS (Forget-me-not}. Nearly smooth ; stem ascending, root- 

 ing near the base ; leaves linear-oblong, obtuse ; flowers small, in long, 

 bractless, i-sided racemes ; calyx in 5 short, spreading segments, open in 

 fruit. In wet grounds, 6'-i2' high. June-September. 



6. Echinospermum. Calyx 5-parted. Corolla salver- form, short, 

 closed at the throat by 5 short, concave scales. Achenia compressed, 

 armed on the back with barbed prickles. 



E. LAPPULA (Burr-seed). Rough-hairy ; stem erect, very branching 

 above ; leaves lanceolate ; flowers small, blue, in bracted racemes ; corolla 

 longer than the calyx. In waste places, 1-2 feet high. July. 



7. Cynoglossurn. Calyx 5-parted. Corolla funnel-form. Achenia 

 depressed, affixed laterally to the base of the style, covered with short, 

 hooked prickles. 



1. C. OFFICINALE (Hound 's-tongue}. Plant with a soft, silky pubes- 

 cence ; stem erect, branching, leafy ; leaves lanceolate, acute ; upper ones 

 clasping with a rounded base ; entire ; flowers large, in nearly bractless ra- 

 cemes ; corolla dull red or purplish. Road-sides, 1-2 feet high. July. 



2. C. MORISONI (Beggar's Lice}. Hairy ; stem erect, very branching 

 above, leafy; leaves oblong-ovate, acuminate ; remote, entire, thin, rough 



