216 SCROPHULARIACEAE. Vo. III. 
5. Castilleja sessilifldra Pursh. Downy 
Painted-cup. Fig. 3837. 
Castilleja sessilifiora Pursh, Am. Sept. 738. 1814. 
Perennial, cinereous-puberulent all over; 
stems stout, simple, or branched from near 
the base, 6-15’ high, densely leafy. Leaves 
sessile, 1-2’ long, the lowest commonly linear, 
obtuse and entire, the others laciniate into 
narrow, entire or cleft segments; bracts green, 
similar to the upper leaves, shorter than the 
sessile flowers; calyx deeper cleft on the lower 
side than on the upper, its lobes linear-lanceo- 
late, acute; corolla yellowish, 14’ long, the 
upper lip about twice as long as the lower, the 
lobes of the latter linear; capsule oblong- 
lanceolate, acute, 6-8” long. 
On dry prairies, Illinois to Manitoba, Sas- 
katchewan, Nebraska, Wyoming and Texas. May- 
July. 
32. ORTHOCARPUS Nutt. Gen. 2: 56. 1818. 
Annual or rarely perennial herbs, mostly with alternate leaves, and yellow white or pur- 
plish flowers, in bracted usually dense spikes, the bracts sometimes brightly colored. Calyx 
tubular or tubular-campanulate, 4-cleft, or sometimes split down both sides. Corolla very 
irregular, the tube slender, the limb 2-lipped; upper lip little if any longer than the 3-lobed 
1-3-saccate lower one. Stamens 4, didynamous, ascending under the upper lip; anther-sacs 
dissimilar, the outer one affixed by its middle, the inner pendulous from its upper end, com- 
monly smaller. Style filiform; stigma entire. Capsule oblong, loculicidally dehiscent, many- 
seeded. Seeds reticulated. [Greek, erect-fruit.] 
About 30 species, natives of America, mostly of.the western United States, 1 or 2 Andean. 
Type species: Orthocarpus luteus Nutt. f\ 
1. Orthocarpus luteus Nutt. Yellow Ortho- 
carpus. Fig. 3838. 
Orthocarpus luteus Nutt. Gen. 2: 57. 1818, 
Annual, rough-pubescent or puberulent; stem strict, . 
erect, branched above, or simple, 6-18’ high, densely 
leafy. Leaves erect or ascending, linear or lanceolate, 
entire, or sometimes 3-cleft, 1’-1%’ long, 1-2” wide, 
sessile, long-acuminate; bracts of the dense spike lan- 
ceolate, broader and shorter than the leaves, entire or 
3-cleft, acute, green, mostly longer than the flowers; 
flowers bright yellow, 4-5” long; calyx-teeth acute, 
shorter than the tube; corolla about twice as long as 
the calyx, puberulent without, its upper lip ovate, ob- 
tuse, about as long as the saccate 3-toothed lower one; 
capsule about as long as the calyx-tube. 
On dry plains and prairies, Manitoba to Minnesota and 
Beara west to British Columbia and California. July— 
ept. 
33. SCHWALBEA [Gronov.] L. Sp. Pl. 606. 1753. 
A perennial erect finely pubescent and minutely glandular, simple or sparingly branched, 
leafy herb, with sessile entire 3-nerved leaves, and rather large yellowish-purple flowers in a 
terminal bracted spike. Calyx tubular, somewhat oblique, 10-12-ribbed, 2-bracteolate at the 
base, 5-toothed, the upper tooth much the smallest, the 2 lower ones partly connate; corolla 
very irregular, the tube cylindric, the limb 2-lipped; upper lip arched, concave, entire; lower 
lip somewhat shorter, 3-lobed, 2-plaited. Stamens 4, didynamous, ascending within the upper 
lip of the corolla; anther-sacs equal. Style filiform. Capsule oblong, many-seeded. Seeds 
linear, with a loose reticulated testa. [Named for C. G. Schwalbe, of Holland, who wrote 
(1719) on Farther India.] 
A monotypic genus of eastern North America. 
