BOkA GIN A CEA E. TJl 



leaves oblanceolate, obtuse; stem leaves mostly oblong or oblong-lanceolate, nar- 

 rowed to the sessile base, 1-4 cm. long; calyx- lobes equal, erect, or connivent in 

 fruit, triangular-lanceolate, acute, about as long as the tube; corolla blue or white, 

 the limb concave. 2-3 mm. broad; nutlets convex on the outer side, somewhat keeled 

 on the inner. In fields, N. B. to Ont. and Minn., south to W. Va. Perhaps not 

 indigenous. Also in Europe. June—Aug. 



4. Myosotis versicolor (Pers.) Reichenb. Yellow and Blue Scorpion- 

 grass. (1. F. f. 3041.) Annual, hirsute-pubescent, often branched above; stems 

 1-3 dm. high. Leaves oblong, obtuse or obtusish, sessile, or the lower spatulate 

 and narrowed into margined petioles; pedicels erect; calyx-lobes linear-lanceolate, 

 erect or connivent in fruit, longer than or equalling the tube; corolla pale yellow 

 changing to violet or blue, its limb about 2 mm. broad; nutlets convex on the 

 cuter, slightly keeled on the inner side. In fields and along roadsides, southern 

 N. Y. to Del. Nat. from Europe. May-July. 



5. Myosotis collina Hoft'm. Early Myosote. Similar to the two preced- 

 ing species, usually much branched from the base, rarely over 1.5 dm. high. 

 Leaves oblong, or the lower spatulate, mostly obtuse; pedicels rarely over 2 mm. 

 long, the segments not closed over the fruit. Fields, Me. to Ont., Mass. and N. Y. 

 Adventive from Europe. May-June. 



6. Myosotis Virginica (L.) B.S.P. Spring Scorpion-grass. (I. F. f. 

 3042.) Hirsute-pubescent or hispid, 0.7-3 dm. l^igb, the branches erect. Leaves 

 oblong or linear-oblong, sessile, 0.6-2.5 cm> l° n g> obtuse, or the lower spatulate 

 and narrowed into short petioles; racemes strict, dense; pedicels ascending or 

 erect, or slightly spreading at the apex, shorter than the fruiting calyx; calyx 

 somewhat 2-lipped, unequally 5 -cleft, the lobes lanceolate, acute, longer than the 

 tube, connivent in fruit, very hispid; corolla limb 3 mm. broad or less; nutlets con- 

 vex on the back, slightly keeled and margined on the inner side. On dry hills 

 and banks, Me. to Ont., Minn., Ga. and Tex. April-June. [M. verna Nutt.] 



7. Myosotis macrosperma Engelm. Southern Scorpion-grass. Similar 

 to M. Jlrginica, but usually larger, the slender branches ascending or spreading; 

 racemes with comparatively few and distant fruiting calyces; pedicels ascending 

 or recurved, about equalling the fruiting calyx. D. C. to Fla., Ky., Ark. and 

 Tex. April-May. 



11. LITHOSPERMUM L. 



Pubescent hirsute or hispid herbs, with alternate entire leaves, the flowers in 

 leafy-bracted spikes or racemes. Calyx 5 -parted or 5 -cleft, the segments or lobes 

 narrow. Corolla funnelform or salverform, 5-lobed. naked, pubescent or crested in 

 the throat, the tube sometimes pubescent at the base within. Stamens 5, included, 

 inserted on the throat of the corolla; filaments short. Stigma capitate, or 2-lobed. 

 Nutlet? 4. or fewer, erect, white, smooth and shining, or brown and wrinkled, at- 

 tached bv their bases to the nearly flat receptacle, the scar of attachment not con- 

 cave. [Greek, stone seed, from the hard nutlets.] About 40 species, of the 

 northern hemisphere, a few in S. Am. and Africa. Besides the following, some 7 

 others occur in the southern U. S. 



Corolla white or yellowish, its tube shorter than or equalling the calyx; flowers distant. 

 Nutlets brown, wrinkled and pitted ; annual or biennial. 1. L. arvense. 



Nutlets white, smooth and shining; perennials. 



Leaves lanceolate, acute; nutlets ovoid. 2. L. officinale. 



Leaves ovate, acuminate; nutlets globose-ovoid. 3, L. latifolium. 



Corolla dull yellow, its tube longer than the calyx; leaves lanceolate; flowers dense. 



4. L, pilosum. 

 Corolla bright yellow, its tube much longer than the calyx; flowers dense. 

 Corolla-lobes entire ; flowers all complete. 



Hispid-pubescent; corolla-tube bearded at the base within. 5. L. Gmelini. 

 Hirsute, somewhat canescent; corolla-tube not bearded at the base within. 



6. L. canescens. 

 Corolla-lobes erose-denticulate: later flowers cleistogamous. 7. L. linearifolium. 



i. Lithospermum arven<^ L. Bastard Alkanet. Corn Gromwell. 



(I. F. f. 3043.) Appressed-pub'-o-nt. 1. 5 5 dm. high. Leaves bright green, 

 lanceolate, linear or linear-oblong, sessile or the lowest short-petioled, mostly ap- 



