206 : SCROPHULARIACEAE. Vo. III. 
or panicles. Calyx campanulate or turbinate, 5-lobed, the lobes longer than or equalling 
the tube, sometimes foliaceous. Corolla slightly irregular, funnelform, or campanulate- 
funnelform, the tube villous or pubescent within, the limb spreading, 5-lobed. Stamens 4, 
didynamous, included, villous or pubescent; filaments slender; anthers all alike, their sacs 
distinct, parallel, awned at the base. Style filiform. Capsule oblong, acute, loculicidally 
dehiscent, longer than the calyx. [Greek, thick or hairy mouth, referring to the corolla.] 
Six species, natives of eastern North America. Type species: Dasistoma aurea Raf. 
Plant glandular-pubescent ; corolla pubescent without. 1. D pedicularia. 
Puberulent, cinereous or glabrous; corolla glabrous without. 
Cinereous-puberulent. ; 
Leaves entire, dentate, or some of the lower pinnatifid, firm. 
Leaves entire, undulate or the lower pinnatifid, with entire lobes. 
Upper leaves mostly serrate, lower pinnatifid with toothed lobes. 
Leaves, at least all but the uppermost, pinnatifid. 
Glabrous or very nearly so throughtout. 
Leaves all pinnatifid, thin. 
Leaves entire, or the lowest dentate or incised. A 
D. flava. 
D, serrata. 
. D. grandiflora. 
. D. laevigata. 
. D. virginica, 
1. Dasystoma pedicularia (L.) Benth. 
Fern-leaved or Lousewort False Fox- 
glove. Fever-weed. Fig. 3812. 
Gerardia pedicularia L. Sp. Pl. 611. 1753. 
Dasystoma pedicu'aria Benth. in DC. Prodr. 
Io: 521. 1846. : 
Annual or biennial, more or less glandu- 
lar-pubescent, viscid, and with some longer 
hairs; stem rather slender, much branched, 
leafy, 1°-4° high. Leaves sessile, or the 
lower petioled, 1-2-pinnatifid, ovate or 
ovate-lanceolate in outline, usually broadest 
at the base, 1-3’ long, the segments incised 
or crenate-dentate; pedicels slender, ascend- 
ing, mostly longer than the calyx, 1’-2’ long 
in fruit; calyx-lobes oblong, foliaceous, 
usually incised or pinnatifid, 3-4” long, 
corolla 1-14’ long, pubescent without, limb 
about 1’ broad; capsule pubescent, 5-6” 
long, beak flat. 
In dry woods and thickets, Maine and On- 
tario to Minnesota, Florida and Missouri. 
Races differ in pubescence and in leaf-divi- 
aie Lousewort. Bushy gerardia. Aug.— 
ept. 
Dasystoma pectinata (Nutt.) Benth., ofthe Southern States, ranging north to Kentucky 
and Missouri, appears to be a very glandular race. 
2. Dasystoma flava (L.) Wood. Downy 
False Foxglove. Fig. 3813. 
Gerardia flava L. Sp. Pl. 610. 1753. 
D. aurea Raf. Journ. Phys. 89: 99. 18109. 
D, pubescens Benth. in DC. Prodr. 10: 520. 1846. 
Dasystoma flava Wood, Bot. & Flor. 230. 1873. 
Perennial, downy, grayish; stem strict, erect, 
simple, or with a few nearly erect branches, 2°-4° 
high. Leaves oblong, lanceolate or ovate-lanceo- 
late, usually opposite, rarely whorled in 3’s, firm, 
entire, or the lower sinuate-dentate or sometimes 
pinnatifid, 3’-6’ long, short-petioled, the lobes ob- 
tuse; the upper much smaller and sessile, passing 
into the bracts of the raceme; pedicels stout, usu- 
ally shorter than the calyx even in fruit; calyx- 
lobes lonceolate, entire, about as long as the tube; 
corolla 14’-2’ long, glabrous outside, its tube 
much expanded above; capsule 8’—10” long, pu- 
bescent, twice as long as the calyx. 
In dry woods and thickets, Maine to Ontario and 
Wisconsin, south to southern New York, Georgia 
and Mississippi. Yellow foxglove. July—Aug. 
