go BORAGINACEAE. ; Vor. III. 
13. ONOSMODIUM Michx. Fl. Bor. Am, 1: 132. 1803. 
Perennial stout hispid or hirsute branching herbs, with alternate entire strongly veined 
leaves, and rather small yellowish or greenish white proterogynous flowers, in terminal leafy- 
bracted scorpioid spikes or racemes. Calyx deeply 5-parted, the segments narrow. Corolla 
tubular or tubular-funnelform, 5-lobed, the lobes erect, the throat not appendaged, the sinuses 
slightly inflexed, the tube with a glandular 10-lobed band within at the base. Stamens 5, 
inserted on the tube or throat of the corolla, included; filaments short. Ovary 4-parted; 
style filiform, exserted. Nutlets 4, or commonly only 1 or 2 perfecting, ovoid, sometimes 
sparingly pitted, shining, smooth, white, attached by the base to the nearly flat receptacle, the 
scar of attachment small, flat. [Greek, like onosma, or ass-smell.] ; 
About 10 species, natives of North America and Mexico. Besides the following, 3 others occur 
in the southern and southwestern United States. Type species: Onosmodium hispidum Michx. 
Corolla-lobes 2-3 times as long as wide. 1. O. virginianum. 
Corolla-lobes scarcely longer than wide. 
Stem glabrous below. 2. O. subsetosum. 
Stem hirsute or pubescent to the base. 
Pubescence silky; nutlets distinctly pitted. 3. O. molle. 
Pubescence hirsute to strigose; nutlets indistinctly pitted. 
Nutlets not constricted. 4. O. occidentale. 
Nutlets distinctly constricted just above the base. 5. O. hispidissimum, 
1. Onosmodium virginianum (L.) DC. Vir-. 
ginia False Gromwell. Fig. 3542. 
Lithospermum virginianum L. Sp. Pl. 132. 1753. 
Onosmodium virginianum DC. Prodr. 10: 70. 1846. 
Densely appressed-hispid or strigose, with stiff 
hairs; stem rather slender, usually branched above, 
1°-24° high. Leaves oblong, oval, or oblong-lanceo- 
late, obtuse or acutish, sessile, 1’-34’ long, or the 
lower oblanceolate and narrowed into petioles; calyx- 
segments linear-lanceolate, acuminate; corolla cylin- 
dric or nearly so, yellowish-white, about 4” long, 
the lobes narrowly lanceolate, acuminate, 2 or 3 times 
as long as wide, nearly as long as the tube, strigose 
without; nutlets ovoid, obtuse or obtusish, pitted, 
1-14” long. 
In dry thickets or on hillsides, Massachusetts to Penn- 
sylvania, Florida and Louisiana. Ascends to 3000 ft. in 
Virginia. Wild job’s-tears. May-July. 
2. Onosmodium subset6dsum Mack. & Bush. 
Ozark False Gromwell. Fig. 3543. 
O. subsetosum Mack. & Bush; Small, Fl. SE. U. S. 1001. 
1903. 
Stem erect, glabrous, or with a few scattered ap- 
pressed hairs above, somewhat branched, 3° high or 
less, the branches appressed-pubesceyt. Leaves lanceo- 
late, acute, papillose and appressed-hispid above, whitish 
appressed-pubescent beneath, the larger about 3%’ long; 
bracts 3’-1’ long; calyx-lobes oblong, obtuse, 3” long; 
corolla about 5” long, canescent, its lobes triangular, 
acute, about 1” long; fruiting pedicels 2”-3” long; nut- 
lets whitish, ovoid, 14’ long, obtuse or acutish, not con- 
stricted, sparingly pitted. 
Barrens, Ozark Mountains, Missouri and Arkansas. 
June-Aug. 
