BORAGE FAMILY 737 



3. M. virginica (L.) B.S.P. Stem branched from the base, 0.5-3 dm. high, 

 hirsute; basal leaves s])atvilatc, 1-3 cm. long; stem-leaves linear-oblong; corolla 

 white, very small. Dry banks and rocky woods: Me. — Ga. — Tex. — Ore. — B.C. 

 Ap-Je. 



16. LITHOSPERMUM (Tourn.) L. Gromwell, Puccoon, 

 Indian Paint. 



Annual or perennial caulescent herbs. Leaves alternate, entire, narrow, 

 hirsute. Flowers perfect, regular, in bracted spikes or racemes. Calyx per- 

 sistent, 5-lobed. Corolla salverform or funnelform, white or j'ellow; tube often 

 elongate; throat either appendaged or pubescent; lobes 5, entire, erose, or toothed. 

 Stamens included. Stigma capitate or 2-lobed. Nutlets white, shining and 

 smooth, or browm and wrinkled, attached by their very bases to the flat recep- 

 tacle. 



Annuals; nutlets dull, brownish, coarsely wrinkled and pitted. 1. L. arvense. 



Perennials, with tliick taproots; nutlets wliite and shining. 



Corolla-lobes neither flrabriate nor toothed; flowers all well developed. 



Corolla greenish or pale yellow, 1 cm. or less long; crest in the throat obsolete; 

 plant very leafj-, with the flowers mostly on the short branches. 

 CoroUa-Umb 3-5 mm. wide; tube not longer than the calyx; stem grayish 



strigose, but scarcely liispid. 2. L. Torreyi. 



Corolla-hmb 5-S mm. wide; tube longer than the calyx. 



Leaves linear or narrowly hnear-laaceolate; stem very Mspid; plant canes- 

 cent. 3. L. ruderale. 

 Leaves lanceolate, long-attenuate; stem scarcely hispid; plant green. 



4. L. lanceolatum. 

 Corolla bright yellow or orange, more than 1 cm. long; crest in the throat prom- 

 inent. 

 Floral leaves of the later flowers smaU, shorter than the flowers; Umb of the 



corolla G-8 mm. wide. 5. L. multiflorum. 



Floral leaves of the later flowers not reduced; limb of the corolla S-20 mm. 

 wide. 

 Hispid-pubescent; corolla-tube bearded at the base within. 



6. L. Gmelini. 

 Canescent; coroUa-tube not bearded at the base within. 



7. L. canescens. 

 Corolla-lobes of the early flowers fimbriate or dentate; later flowers cieistogamous. 



Corolla of the early flowers 2.5-3 cm. (rarely only 2 cm.) long; lobes distinctly 

 fimbriate. 



Plant liirsute. 8. L. asperum. 



Plant appressed-canescent. 



Leaves narrowly hnear. 9. L. linearifolium. 



Leaves spatulate to linear-oblong. 10. L. oblongum. 



Corolla of the early fiowers 2 cm. or less long; lobes dentate. 



CoroUa 15-20 nun. long; limb 8-10 mm. wide; stem low, ascending or de- 

 cumbent. 11. L. mandanense. 



CoroUa 10 mm. or less long; Umb 6-8 mm. wide; stem strict, 2-4 dm. high, 

 mostly simple, or with erect branches. 12. L. breviflorum. 



1. L. arvense L. Stem 2-5 dm. high, strigose, simple or blanched at the 

 base; leaves lanceolate, linear, or oblong, sessile or the lower short-petioled, canes- 

 cent-strigose; corolla white, about 6 mm. long; calyx equalling or exceeding the 

 corolla-tube; nutlets 2 mm. long. Waste places and fields: Que. — Ga. — Kans. 

 — Minn.; Utah; Mont.; nat. from Eu. Plain — Son. My-Au. 



2. L. Torreyi Nutt. Stem erect, 2-4 dm. high; leaves linear or Unear- 

 Janceolate, 3-8 cm. long, strigose; corolla 6-8 mm. long; nutlets 5 mm. long, 

 ovoid. Hills and canons: Mont.— Colo. — Utah — Ida. Plain — Submont. Je- 

 Au. 



3. L. ruderale Lehm. Stem 3-5 dm. high; leaves 3-8 cm. long, canescent, 

 pilose, or strigose; corolla 10-12 mm. long; nutlets slightly wrinkled, 5 mm. long. 

 L. pilosiun Nutt. Hills: Alta. — Colo. — Nev. — B.C. Plain — Submont. Ap-Jl. 



4. L. lanceolatum Rydb. Stem 3-6 dm. high, strigose; lower leaves Unear- 

 lanceolate, the upj)er lanceolate, 4-10 cm. long, finely strigose; corolla yellowish, 

 8-10 mm. long; nutlets 5-6 mm. long. Hills, caiions, and plains: Mont. — Utah 

 — Calif. — Wash. Plain — Submont. My-Jl. 



5. L. multiflorum Torr. Stem strigose or somewhat hirsute, 3-6 dm. high, 

 virgately branched above; leaves Unear or linear-lanceolate, appressed-strigose 



