88 BORAGINACEAE. Vor. LI. 
2. Lithospermum officinale L. Gromwell. 
Fig. 3536. 
Lithospermum officinale L. Sp. Pl. 132. 1753- 
Perennial, finely puberulent; stem usually much 
branched, 2°-4° high, leafy. Leaves lanceolate or 
oblong-lanceolate, acute at the apex, narrowed at 
the base, few-veined, sessile, 13’-4’ long, 3’’-12” 
wide, the upper surface rough, the lower pubes- 
cent; flowers yellowish-white, about 2” long, ses- 
sile; calyx-segments linear-lanceolate, about equal- 
ling the corolla-tube; corolla funnelform, crested 
in the throat; style about as long as the stamens; 
nutlets, when mature, white, smooth, shining, 
about 12” high, ovoid, obtuse, more than one-half 
as long as the calyx-segments, seldom all ripening. 
In fields and waste places, Quebec to southern New 
York, New Jersey and Minnesota. Plant grayish. 
Naturalized from Europe. Native also of Asia. 
Graymile. Littlewale. Pearl-plant. May-Aug. 
3. Lithospermum latifolium Michx. 
American Gromwell. Fig. 3537. 
Pal asperiines latifolinm Michx. Fl, Bor. Am. 1: 131. 
1803. 
Perennial, rough-puberulent; stem branched, 
2°-3° high, the branches long and slender. Leaves 
ovate or ovate-lanceolate, acuminate at the apex, 
pinnately veined, 2’-5’ long, 1’-2’ wide, or the 
uppermost smaller, the lowest obtuse; flowers 
yellowish white or pale yellow, 2-3’ long, few, 
solitary, distant; calyx-segments linear-lanceo- 
late, about as long as the corolla or a little 
longer; corolla funnelform, crested in the throat; 
style shorter than the stamens; nutlets white, 
shining, globose-ovoid, about 2” long, more than 
one-half as long as the calyx-segments. 
In dry thickets and fields, Quebec to New York, 
Minnesota, Kansas, Virginia, Tennessee and Arkan- 
sas. May. 
4. Lithospermum pil6sum Nutt. Woolly 
Gromwell. Fig. 3538. 
Lithospermum pilosum Nutt. Journ. Phil. Acad. 7: 43. 
1834. . 
Lithospermum Torreyi Nutt. loc. cit. 44. 1834. 
Perennial from thick roots, hirsute, rather pale 
green; stems usually stout and clustered, very leafy, 
8-18’ high. Leaves lanceolate or linear-lanceolate, 
2’-4' long, 2-5” wide, gradually acuminate to the 
apex, narrowed at the base, sessile, indistinctly 
veined; flowers dull yellow, very numerous and 
crowded in a terminal leafy thyrsus; calyx-seg- 
ments densely hirsute, shorter than the cylindric 
corolla-tube; corolla salverform, the throat puberu- 
lent below each lobe; style longer than the filaments; 
nutlets ovoid, acute, white, shining, about 2” long. 
Western Nebraska (according to Williams) ; Wyo- 
ming to Montana, Alberta, British Columbia and Cali- 
fornia. May-July. 
