822 BORRAGINACEJE. (BORAGE FAMILY.) 



3. I* OFFICINALE, L. (COMMON GROMWELL.) Much branched above, 

 erect (l-2 high) ; leaves thinnish, broadly lanceolate, acute, with a few distinct 

 veins, rough above, soft-pubescent beneath; corolla exceeding the calyx: nutlets 

 very smooth and even. Road-sides, &c. : rather rare. (Nat. from Eu.) 



4. L,. latifolium, Michx. Stem loosely branched, erect (2 -3 high), 

 rough ; leaves ovate and ovate-lanceolate, mostly taper-pointed (even the floral ones 

 2' -4' long), ribbed-veined, roughish above, finely soft-pubescent beneath, the 

 root-leaves large and rounded ; corolla shorter than the calyx ; nutlets very smooth 

 or sparingly impressed-punctate, shining, turgid (2" long). Borders of woods, 

 Michigan to Kentucky. June. 



3. Nutlets smooth and shining : corolla large, salver-shaped or nearly so, deep orange- 

 yellow, somewhat piil)escent outside : the tube 2-4 times longer than the calyx, the 

 throat more or less appendaged. (Roots perennial, long and deep, yielding a red 

 dye.) (Batschia, Gmel.) 



* Tube of the corolla, from one half to twice longer than the calyx, not much longer 

 than its ample limb, the lobes entire ; the appendages glandular and adherent (espe- 

 cially in the state with the stamens at the base of the tube], or slightly arched. 



5. It. liirtllill, Lehm. (HAIRY PUCCOOK.) Hispid with bristly hairs 

 (l-2 high) ; stem-leaves lanceolate or linear, those of the flowering branches 

 ovate-oblong, bristly-ciliate ; corolla woolly-bearded at the base inside ; flowers dis- 

 tinctly peduncled ; fruiting calyx (' long) 3-4 times longer than the nutlets. 

 (Also L. sericeum, Lehm. Batschia Carolinierisis, Gmel. B. Gmclini, Michx.) 

 Dry woods, Michigan to Wisconsin, Virginia, and southward and northwest- 

 ward. April - June. Flowers crowded, showy : limb of the corolla |' - 1 broad. 



6. It, caiiescens, Lehm. (HOARY PUCCOON or ALKANET.) Softly 

 hairy and more or less hoary (6'-15' high) ; leaves obtuse, linear-oblong, or the 

 upper ovate-oblong, more or less downy beneath and roughish with close ap- 

 pressed hairs above ; corolla naked at the base within ; flowers sessile ; fruiting calyx 

 (3" long) barely twice the length of the nutlets. (Batschia canescens, Michx.) 

 Open woods and plains, W. New York to Kentucky, Wisconsin, and northwest- 

 ward. May. Limb of the showy corolla smaller and the calyx shorter than 

 in the last. 



* * Tube of the corolla 2-4 times the length of the calyx, and of its erose-toothed or 

 crenulate lobes ; the appendages at the throat more projecting or arched. (Pentalo- 

 phus, A. DC.) 



7. Li. I oil if lor mil, Spreng. Minutely strigose-hoary ; stem simple 

 (6'-18 f high) ; leaves linear; tube of the corolla much longer than the calyx 

 (f -l' long). (Batschia longiflora, Pursh. L. incisum, Lehm. Pentalophus 

 longiflorus, A. DC.) Prairies and plains, from W. Illinois and Wisconsin 

 westward. May. 



6. UIERTENSIA, Roth. SMOOTH LUNGWORT. 



Corolla trumpet-shaped or bell-funnel-shaped, much longer than the deeply 5- 

 cleft or 5-parted calyx, naked, or with 5 small glandular folds or appendages in 

 the open throat ; the spreading ^border 5-lobed. Stamens protruding from the 



