432 XCIV. BORRAGINACEiE. Lithospermum. 



6. ONOSMODIUM. Michx. 



From Onosma, another genus of this order, and eiSog, appearance or resemblance. 



Calyx deeply 5-parted, with linear segments ; corolla subcampanu- 

 late, having a ventricose, half 5-cleft limb, with the segments con- 

 verging and the orifice open ; anthers sessile, sagittate, included ; 

 style much exserted ; achenia imperforate, shining. — % NoHh Ameri- 

 can. Kac. terminal^ subspicate, one-sided. Fls. lohite. 



1. O. ViRGiNiANUM. Alph. DC. (O. hispidum. Michx. Litho-spermum 

 Virg. Linn.) False GrovuccU. — St. with appressed hairs ; Ivs. oblong-Ian- . 



ceolate, minutely strigose ; cal. lobes lanceolate, pilose both sides, half as long as 

 the corolla; cor. lobes lance-subulate, clothed externally with long, hispid hairs. 

 — N. Y. to Flor., in dry, hilly grounds. A very rough, erect plant about IK 

 high. Leaves H — 2^' by J — \', 3 — 5- veined, often oval and even ovate-lanceo- 

 late. Flowers greenish- white, in leafy racemes which are recurved at first but 

 finally erect. Styles (6 — 7") twice longer than the corolla. 



2. O. Carolinianum. DC. (O. molle. Michx. Lithospermum Carol. Lam. 

 L. molle. Muhl.) — Villose-canescent ; Ivs. oblong-oval, rather obtuse, each 



side whitish with scattered hairs; bracts ovate-lanceolate; cal. segvunts lanceo- 

 late, half as long as the glabrous corolla; cor. segvients ovate, acute. — Rocky 

 hills, N. Y. to Car. and Tenn. Plant a foot or more high, clothed with a soft, 

 white pubescence. Anthers silky-pubescent, as long as the glabrous filaments, 

 its lobes scarcely diverging. Jl. Aug. 



3. O. sTRiGosuM. G. Don. 



St. erect, simple, pilose-hispid, very leafy; Ivs. lance-linear, sessile, very 

 long, 3- veined, with appressed hairs ; bracts lance-linear, silky; cat. lobes linear, 

 acute, silky with appressed hairs both sides, very long ; cor. cylindrical, a third 

 longer than the calyx, silky-puberulent outside ; sta. included ; sty. exserted. — 

 111., {Mead,) in wet "prairies and woods. Leaves 3' long, I' wide, nearly gla- 

 brous beneath the veins. Corolla yellowish-white. Fruit smooth and shining. 



7. LITHOSPERMUM. 



Cir. Xt-S^oj, a stone, and aTTepfia^ seed ; the seeds being hard and shining like little pebbles. 



Calyx 5-parted, persistent; corolla funnel-form or salver-form; 

 limb 5-lobed, orifice open ; stamens included ; stigma obtuse, bifid ; 

 achenia bony, rugose or smooth, imperforate at base. — Herbaceous or 

 suffruticose., generally ivith a thick., reddish root. Fls. spiked or racemed, 

 br acted, white or yellow. 



* Floivers white. 



1. L. OFFICINALE. Officinal Grovnvell. 



St. herbaceous, erect, very branching above; Ivs. lanceolate, acute, vemy ; 

 cal. nearly equal to the tube of the corolla ; ach. smooth. — % A rough, weed-like 

 plant, introduced from Europe. Grows in dry, gravely soils. Stems much branch- 

 ed, clustered, arising 1 — 2f from a white, fusiform root. Leaves grayish-green, 

 rough on the upper side, hairy beneath, rather acute, entire, 2 — 3' by h — f '. Flow- 

 ers small, white, axillary, solitary, pedicellate, in recurved, leafy spikes. Ache- 

 nia ovate, white or grayish, polished, stony, usually but 1 or 2 perlected. Jl. ^ 



2. L. LATiFOLiuM. Michx. Broad-leaved Gromwell. 



Herbaceous, erect, subsimple, scabrous ; Ivs. ovate-lanceolate, acute at 

 each end, veined, scabrous ; rac. leafy, few-flowered ; scp. lance-linear, longer 

 than the corolla and spreading in fruit ; ach. punctate, shining- white, ovoid-tur- 

 gid. — Woods and thickets, N. Y., Torrcy, to Ohio and 111., Mead I and Va., 

 Piirsh. Differs from the first in the less branching stem, much broader leaves, 

 longer calyx and larger fruit "punctate with minute impressions." Leaves 

 2 — V by 1 — 2', strongly veined. Nuts generally but 2, half as long as the calyx. 

 Flowers small, while. 



3. L. ANGCSTIFOLIUM. Mlchx. 



S'. herbaceous, procumbent; Ivs. linear, strigosewith an appressed pubes- 



