,32 XCIV. BORRAGINACEiE. LifiiosPERMUM 



6. ONOSMODIUM. Michx. 



From Onosma, another genus of this order, and ciSos, 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. — % North Ameri- 

 can, llac. terminal^ subspicatc, one-sided. Fls. wliite. 



1. O. ViRGiNiANUM. Alph. DC. (O. hispidam. Michx. Lithospermum 

 Virg. Linn.) False GromwelL — St. with appres.sed haii-.s; Ivs. oblong-lan- 

 ceolate, minutely strigose ; ccd. lubes lanceolate, pilose both side.s, 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 lif 

 high. Leaves l\ — 2^' by § — f, 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. moWe. Muhl.') — Villose-canescent; Zrs. oblong-oval, rather obtuse, each 



side whitish with scattered hairs; Arac/s ovate-lanceolate ; cal. segments iRiiceo- 

 late, half as long as the glabrous corolla; cor. segments 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 filanientgi 

 its lobes scarcely diverging. Jl. Aug. 



3. O. sTRiGosuM. G. Don. 



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

 long, 3-veined, with appressed hairs ; bracts lance-linear, silky; ca,l. bbes linear, 

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

 longer than the calyx, silky-puberulent outside ; sla. 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. 



Gt. X(&oj, a stone, and a-rccpua, seed ; the seeds being liard and sliining 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 

 suffriiticose.1 generally with a thick., reddish root. Fls. spiked or raccmed, 

 bracted, white or yellow. 



* Flowers white. 



1. L. OFFICINALE. Officinal GromwelL 



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

 cal. nearly equal to the tube of the corolla ; acL 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 §— 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. LATiFOLiDM. Michx. Broad-learcd Grovuvell. 



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

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

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

 gid.— Woods and thickets, N. Y., T^rrcy, to Ohio and 111., Mead! and Va., 

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

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

 2 — 4' by 1 — 2', strongly veined. Nuts generally but 2, half as long as the calyx. 

 Flowers small, white. 



3. L. ANGUsTiFOLiuM. Michx. 



St. herbaceous, procumbent; Ivs. linear, strigose with an appressed pubes- 



