64 



BORAGINACEAE. 



[Vol. III. 



2. Lithospermum officinale L. Gromwell. (Fig. 3044.) 



Lilhospermtim officinale L. Sp. PI. 134 1753. 



Perennial, finely puberulent; stem usually 

 much branched, 2°-4° high, leafy. Leaves lan- 

 ceolate or oblong-lanceolate, acute at the apex, 

 narrowed at the base, few- veined, sessile, lYz'- 

 4' long, 3"-i2" wide, the upper surface rough; 

 flowers yellowish-white, about 2" long, sessile; 

 calyx-segments linear-lanceolate, about equal- 

 ling the corolla-tube; corolla funnelforui, crested 

 in the throat; style about as long as the stamens; 

 nutlets, when mature, white, smooth, shining, 

 about lyi" high, ovoid, obtuse, more than one- 

 half as long as the calyx-segments, seldom all 

 ripening. 



In fields and waste places, Ontario to southern 

 New York, west to Minnesota. Plant grayish. Nat- 

 uralized from Europe. Native also of .\sia. Called 

 also Graymile, Littlewale and Pearl-plant. Jlay- 

 Aug. 



3. Lithospermum latifolium Michx. 

 American Gromwell. (Fig. 3045.) 



Lithospermum latifolium Michx. Fl. Bor. Am. i: 



Perennial, rough-puberulent; stem branched, 

 2°-3° high, the branches long and slender. 

 Leaves ovate or ovate-lanceolate, acuminate at 

 the apex, pinnately veined, 1'-^' long, \'-i' 

 wide, or the uppermost smaller; flowers yellow- 

 ish white or pale yellow, 2"-3" long, few-, soli- 

 tary, distant; calyx-segments linear-lanceolate, 

 about as long as the corolla; corolla funnelforni, 

 crested in the throat; style shorter than the 

 stamens; nutlets white, shining, globose-ovoid, 

 about 1" long, more than one-half as long as 

 the calyx-segments. 



In dry thickets and fields, Ontario and western 

 New York to Minnesota, south to Virginia and 

 Arkansas. May. 



Lithospermum 

 Woolly Gromwell. 



pilosum Xutt. 

 (Fig. 3046.) 



\ (} ? ? (?/ 



Lithospermum pilosum Nutt. Joum. Phil. Acad. 7: 



43- '''^34- 

 Ltlhospcrmutn Torreyi Nutt. loc. cit. 44. 1834. 



Perennial from thick roots, hirsute, rather pale 

 green; stems usually stout and clustered, very 

 leafy, S'-i8' high. Leaves lanceolate or linear- 

 lanceolate, 2'-4' long, 2"-5" wide, gradually acu- 

 minate to the apex, narrowed at the base, sessile, 

 indistinctly veined; flowers dull yellow, very 

 numerous and crowded in a terminal leafy thyr- 

 sus; calj-x-segments denselj- hirsute, shorter than 

 the cj'lindric corolla-tube; corolla-salverform, the 

 throat puberulent below each lobe; style longer 

 than the filaments; nutlets ovoid, acute, white, 

 shining, about 2" long. 



Western Nebraska (according to Williams), Mon- 

 tana to the Northwest Territory, Britisli Columbia 

 and California. May-July. 



