298 SCROPHULARIACE^. Castilleia. 



the saccate portion, the 3 narrow obtuse keels or plicje of which terminate under the lobes 

 in as many conical gibbosities. — Sierra Co., California, probably in the alpine region, Lem- 

 mon. Referred in Bot. Calif, to C. pallida, var. occidentalis. One of the transitions to the 

 first section of Orthocarpus. 



-H- ++ Herbage white-woolly throughout; the tomentum loose or flocculent with age: leaves linear 

 and entire: bracts 3-parted ; tlie divisions more or less spatulate-dilated and petaloid : calyx- 

 lobes broad and with rounded entire or slightly 2-lobed summit : corolla almost included, 7 to 9 

 lines long, slender; the narrow galea little shorter than the tube; lip very short. 

 C. f oliolosa, Hook. & Arn. A foot or two high, and many-stemmed from a woody 

 base: woolly hairs intricately branched: leaves narrowly linear (inch or less long), 

 crowded below and fascicled in lower axils : spike close : galea shorter than the tube of 

 the corolla. — Bot. Beech. 154 ; Benth. 1. c. ; Gray in Am. Jour. Sci. 1. c. & Bot. Calif, i. 

 574. — Dry hills, coast of California from San Diego to Mendocino Co. 

 C. lanata, Gray. Apparently herbaceous to base, branching, white with appressed 

 arachnoid wool : leaves larger (inch or two long) ; the galea longer than the tube : flowers 

 larger, more scattered in the spike: corolla rather more exserted. — Bot. Mex. Bound. 118. 



— S. W. Texas to Arizona. (Adjacent Mex.) 



++++++ Tomentulose or cinereous-puberulent, or the stem only lanate-tomentose : bracts, &c., 

 conspicuously petaloid : primary calyx-sepments 2-cleft or 2-parted into narrow usually acute 

 lobes : corolla more exserted, inch long or over; galea shorter than the tube; 



= Lip very short; its lobes not longer than the more or less callous saccat* portion. 



C. integra, Gray. A span to a foot high : stem rather stout, tomentose : leaves cine- 



reous-tomentulose, linear (1-J^ to 3 inches long, 1 to 3 lines wide), entire: bracts of the 



short spike linear- or obovate-oblong, red or rose-color, entire or sometimes incised : corolla 



inch and a quarter long ; galea rather broad ; lip strongly tri-callous, its lobes very short. 



— Bot. Mex. Bound. 119, & Am. Jour. Sci. 1. c. C. angustifolia, Gray, Bot. Mex. Bound. 

 118, in part, not Nutt. C. tomentosa, Gray, 1. c, a more tomentose form. — Dry grounds, 

 W. Texas to Colorado and Arizona. 



C. Lindheimeri. A span or two high, branched or many-stemmed from the base, cine- 

 reous-puberulent or the stem tomentulose: leaves narrowly linear, entire or sparingly 

 laciniate, or the upper 3-5-cleft, as are the bracts of the dense spike ; these mostly peta- 

 loid and dilated, from brick-red to rose-color or sulphur-yellow : calyx equally colored : 

 corolla (inch or so in length) rather slender ; the lobes of the lip ovate, not longer than the 

 callous saccate portion — C. purpurea, Gray in Am. Jour. Sci. 1. c. 338, not Don & Benth. 



— Stony or fertile mountain prairies, on the Pierdenales and Guadalupe, W. Texas, Lind- 

 heuner, &c. Much more showy than the next, and with different corolla. 



= = Lip of corolla with longer and naiTow lobes, and base less saccate. 

 C. purpurea, Don. A foot or less high, minutely cinereous-pubescent and the stem 

 appressed-tomentose : leaves narrowly linear and entire, or mostly once or twice 3-cleft or 

 laciniate, with divisions and lobes all narrowly linear: bracts similar or with cuneate- 

 dilated base; the broader lobes of the upper and the calyx magenta-color or purple: 

 corolla (over an inch long) narrow ; galea very much shorter than the tube, only twice the 

 length of the lip: lobes of the latter elongated-oblong, plane and petaloid, very much 

 longer than the obscurely saccate and not callous basal portion.— Syst. iv. 615; Benth. 

 1. c. Euchroma purpurea, Nutt. in Trans. Am. Phil. Soc. n. ser. v. 180. — Hilly prairies, 

 Arkansas, Nultall. E. Texas, Drummond (iii. no. 286 in part), Miss Hobart, Reverchon. 

 ^— -1— -1— Calyx deeper cleft before than behind : corolla either slender or small, with galea much 

 shorter than its tube and lip comparatively long: bracts and calyx if colored at all yellowish: 

 leaves or their divisions narrowly linear, rather rigid : stems numerous from the root. 

 ++ Lip of corolla half the length of the short galea, more or less trisacculate and little if at all 

 callous below the narrow lobes : flowers yellowish or greenish white : clefts of the calyx moder- 

 ately unequal. 

 = Cinereous-pubescent: leaves mostly 3-5-cleft and the slender divisions sometimes again 2-3- 

 cleft: bracts similar or with more dilated base, not even their tips colored. 

 C. sessiliflora, Pursh. A span or two high, very leafy, cinereous-pubescent: leaves 

 2 inches or more long, with slender lobes, rarely entire : lobes of the tubular calyx slender: 

 corolla exserted, about 2 inches long : lip with linear-lanceolate lobes very much longer 

 than the obscurely saccate base. — Fl. ii. 738 ; Benth. I.e.; Gray, I.e. C. grandijlora, 

 Spreng. Syst. ii. 775. Euchroma grandiflora, Nutt. Gen. ii. 65. — Prairies, Wisconsin and 

 Illinois to Saskatchewan, Dakota, and south to W. Texas and New Mexico. 



