Onhocarpus. SCROPHULARIACE^. 299 



C brevifl6ra, Gray. Barely span high, more pubescent : lower leaves often entire and 

 upper only 3-5-parted, an inch or so long : bracts of the dense spike more dilated, not sur- 

 passing the flowers : calyx ovoid-oblong ; its lobes lanceolate : corolla little exserted, less 

 than inch long : lip with somewhat callous oblong plicae or saccate keels about the length 

 of the oblong obtuse lobes. — Am. Jour. Sci. 1. c. 338. — Rocky Mountains of Colorado and 

 "Wyoming, in the alpine region, Nuttall, Parry, &c. 



== = Very glabrous up to the merely pubescent naked dense spike : cauline leaves all entire : 

 bracts shorter than the flowers, dilateci and 3-cleft : the lobes with petaloid yellowish tips. 



C. linoides. Stems strict, a foot high, rigid, branching at summit, very smooth, as also 

 the rigid leaves (these 1 or 2 inches long, a line or less wide) : calyx and corolla nearly of 

 C. hreviflora, the former with narrower lobes and the latter only half inch long. — Clover 

 Mountains, Nevada, Watson. In Bot. King, included under " C. pallida, var." 



++ ++ Lip of corolla very short, globular-saccate and callous, and with verj' short ovate lobes: 

 anterior cleft of calyx deeper. 



C. flava, "Watson. A foot high, with numerous slender stems, cinereous-puberulent, at 

 least above, and the elongated spike more pubescent : leaves entire or the upper with one 

 or two lobes: bracts 3-cleft and with dilated base; the upper and calyx yellowish : corolla 

 hardly an inch long; narrow galea little shorter than the tube. — Bot. King, 230. — 

 Mountains of E. Utah and Wyoming, in and near the Uintas, Watson, Porter. 



31. ORTHOCARPUS, Nutt. (Vgdog, upright, and xagTio^;, fruit; the 

 capsule not oblique as in Melampyrum.) — Low herbs, almost all annual (W. 

 North American and one Chilian) ; with mainly alternate entire or 3-5-parted 

 and laciniate leaves ; the upper passing into bracts of the dense spike and not 

 rarely colored, as also the calyx-lobes ; the corolla yellow, or white with purple 

 or rose-color, often much surpassing the calyx. Seeds numerous or rather few. 

 Fl. spring and summer. — Benth. in DC. Prodr. x. 535 ; Watson, Bot. King, 

 230, 457 ; Gray, Bot. Calif, i. 575. 



§ 1. Castilleioides, Gray. Corolla with lip (i. e. lower lip) simply or some- 

 what triply saccate, and with conspicuous mostly erect lobes ; the galea (i. e. 

 upper lip) either broadish or narrow : anthers all 2-celled : bracts with more or 

 less colored tips : seeds with very loose and arilliform cellular-favose coat. — 

 Bot. Calif. 1. c. 



* Root perennial : lips of the short and yellowish corolla more equal and less dissimilar than in 

 any of the following ; lower one rather obscurely saccate; galea broadish, obtuse : filaments gla- 

 brous. Transition to Castilleia. 



O. pallescens, Gray. Cinereous-puberulent, not hairy: leaves 3-5-parted into linear 

 lobes, or the lower entire : bracts similar with dilated base, or upper with shorter obscurely 

 whitish or yellowish lobes : calyx deeply 2-cleft, with broad lobes merely 2-cleft at apex: 

 corolla over half inch long. — Am. Jour. Sci. ser. 2, xxxiv. 339, & Proc. Am. Acad vii. 

 384, in part, but only as to Nuttall's Euchroma pallescens in herb. 0. Parryi, Gray in Am. 

 Naturalist, viii. 214. — Rocky Mountains of N. W. Wyoming to E. Oregon, Nuttall, Parry, 

 Cusick. 



O. pilosus, Watson. From soft-villous to hirsute-pubescent, a span or two high, very 

 leafy : leaves of the preceding or more divided : bracts usually more dilated and colored, 

 from yellow or whitish to dull crimson : calyx-segments deeply cleft or parted; the lobes 

 linear. — Bot. King, 231; Gray, Bot. Calif, i. 576. 0. pallescens, Gra)% 1. c, except as to 

 Nuttall's plant. — Sierra Nevada, California, at 5-10,000 feet, to Oregon. Varies with lax 

 and with rather rigid leaves, with soft-villous and with hirsute pubescence. &c. 



* * Root annual: filaments glabrous: galea narrow and nearly straight, lanceolate-triangular or 

 broadly subulate, naked: lip moderately ventricose and somewhat plicate-trisaccate for its whole 

 length ; the teeth or lobes conspicuous, erect, oblong-linear : capsule oblong or oval. 



O. attenuatus, Gray. Erect, slender, a span or two high, hirsute-pubescent above : 

 leaves hnear and attenuate, often with a pair of filiform lobes : spike virgate : lower 

 flowers scattered : bracts with slender lobes barely white-tipped : corolla narrow tliroughout, 



