Gerardia. SCROPHULARIACE.E. 291 



1. DASYSTOMA, Gray, Man. Corolla more or less funnelform, yellow ; the 

 proper tube within., as also anthers and filaments, pubescent or villous-woolly : 

 anthers all alike, hardly included; the cells aristate at base: rather tall and large- 

 flowered perennials or biennials ; with calyx-lobes sometimes foliaceous and 

 incised, and comparatively broad leaves often incised or pinnatifid. (For root- 

 parasitism, see Gray, Struct. Bot. t. 145.) Dasysto/na, Raf. in Jour. Phys. Ixxxix. 

 99 ; Benth. in DC. Prodr. x. 520. 



* Pubescence partly glandular and viscid, especially on the slender pedicels and calyx; corolla 

 pubescent outside : root biennial or annual. 



G. pedicularia, L. Paniculatcly much branched, 2 or 3 feet high .soft-pubescent or villous 

 and viscid, or the foliage hardly so : leaves mostly sessile, an inch or two long, oblong- or 

 ovate-lanceolate in outline, all pinnatifid ; the divisions crowded and incisely pinnatifid or 

 toothed : pedicels 4 to 12 lines long : calyx-lobes foliaceous, from linear to oblong, equalling 

 or longer than the tube, often denticulate or incisely serrate : corolla from 1 to 14- inches 

 long. Spec. ii. Oil ; Lam. Diet. ii. 529 ; Ell. Sk. 5i 121. Das/jstoma pedicularia, Benth. in 

 DC. 1. e. Canada and west to the Mississippi, south to Florida. 



Var. pectinata, Nutt. A southern more villous and glandular form, with rather 

 narrower leaves, and more foliaceous lobes of the calyx longer than its tube. Gen. ii. 48. 

 G. pectinata, Torr. in Benth. Comp. Bot. Mag. i. 200. Dasystoma pectinata, Benth. in DC. 

 1. c. ; Chapm Fl. 298. N. Carolina to Florida and Arkansas. 



* * No glandular pubescence: corolla glabrous outside : root perennial. 



G. grandiflora, Benth. Densely cinereous-puberulent : stem much branched, 2 or 3 

 feet high, leafy to the top : leaves somewhat petioled, ovate to oblong-lanceolate in out- 

 line, incisely and often lyrately pinnatifid, or the lower more divided and the upper merely 

 laciniate-dentate (2 inches long) : inflorescence leafy : pedicels shorter or rarely twice longer 

 than the turbinate calyx-tube : lobes of the calyx lanceolate, entire or sparingly toothed, 

 equalling or shorter than the tube: corolla inch and a half long. Comp. Bot. Mag. I.e. ; 

 Gray, Man. ed. 5, 035. Dasystoma Drummondii, Benth. in DC. 1. c. Oak openings, &c., Wis- 

 consin and Iowa to Tennessee and Texas. 



Var. integriuscula. A form with slender branches, bearing either sparsely serrate 

 or entire leaves ; or the lower laciniate-pinnatifid. G. serrata, Torr., Benth. 1. c. Dasy- 

 stoma Drummondii, var. serrata, Benth. in DC. W. Louisiana, Hale. 



G. flava, L. Densely puberulent and somewhat cinereous : stem nearly simple, 3 or 4 feet 

 high : leaves ovate-lanceolate or oblong, obtuse, entire, or the lower sparingly sinuate-toothed 

 or pinnatifid (2 to 4 inches long) : pedicels very short : calyx-lobes oblong or lanceolate, 

 entire, about the length of the tube : corolla inch and a half long, much dilated upward. 

 Spec. ii. 610, as to syn. Gronov. & Pluk., not herb. ; Michx. Fl. ii. 19 ; Pursh, Fl. ii. 423 ; 

 Torr. Fl. N. Y. ii. 47, t. 74. Dasystoma pubescens, Benth. in DC. 1. c. Open woods, Canada 

 to Wisconsin and Georgia. 



G. quercifolia, Pursh. Glabrous : stem at first glaucous, 3 to 6 feet high, simple or 

 commonly branching: lower leaves once or twice pinnatifid or incised (3 to 5 inches long) 

 and the lobes acute; the upper often entire and lanceolate, acute : pedicels equalling or 

 shorter than the calyx : corolla not rarely 2 inches long, more funnelform and narrower 

 below than in the preceding. Fl. ii. 423, t. 19. G.flai-a, L., as to herb. Rhinanihus Vir- 

 ginicus, L., as to Syn. Gronov. G. gktuca, Eddy, Cat. ; Spreng. Syst. ii. 807. Dasystoma. 

 quercifolia, Benth. in DC. 1. c. Dry woods, from New England and W. Canada to Illinois 

 and south to Florida and Louisiana. 



G. laevigata, Raf. Glabrous or obscurely puberulent, not glaucous : stem slender, a foot 

 or two high : leaves lanceolate (H to 4 inches long) ; all the upper entire ; the lower often 

 incised or irregularly pinnatifid : pedicels and lobes of the calyx shorter than its tube : 

 corolla much dilated above the short tube, an inch long and the limb fully as broad. 

 Ann. Nat. (1820), 13. G. inter/ n folia, Gray, Man. ed. 1, 307, ed. 6, 335. Dast/stoma querci- 

 folia, var. 1 integr (folia (& var. inter medial), Benth. in DC. 1. c. Oak barrens, &c., Penn. to 

 Illinois and the mountains of Georgia. 



G. patula, Chapm. Obscurely pubescent or glabrate, not glaucous : stem weak and 

 slender, loosely branching above, 2 or 3 feet long : leaves as of the preceding, but thinner : 



