576 SCROPHULARIACE^E. Orthocarpus. 



* Root perennial ! : lips of the short and yellowish corolla somewhat equal, the upper 

 being broadish and blunt (straight) and the lower rather obscurely saccate : fila- 

 ments glabrous. 



1. O. pilosus, Watson. A span or two high, many-stemmed from the firm root, 

 either sol't-villous or hirsute, very leafy : leaves rather rigid, at least when old ; the 

 lowest linear and entire; the others 3-5-parted into narrowly linear diverging lobes; 

 the lower floral similar, the upper ones with more or less dilated and sparingly 

 colored (white or yellowish) tips : spike dense, rather short : calyx somewhat 

 equally 4-cleft into narrow linear lobes which nearly equal the corolla, or these 

 united at base in pairs : lower lip of the corolla at first equalling, at length a little 

 shorter than the upper ; its lobes ovate, shorter than the slightly saccate portion 

 beneath. 0. pallescens, Gray in Am. Jour. Sci. xxxiv. 339, & Proc. Am. Acad. 

 vii. 384, except as to Nuttall's plant. 0. pallescens (the more rigid form) & 0. 

 pilosus (the softer villous form), Watson, Bot. King Exp. 231, 459. 



Higher parts of the Sierra Nevada, from Tulare Co. to Sierra Co., and on Mount Shasta, at 

 5,000 to 9,000 feet (Brewer, Torrey, Kellogg, Lcmmon, &c.); and in the interior of Oregon and 

 Idaho. Corolla 6 to 8 lines long ; the lips only 2 lines long ; lower with the slightly ventricose 

 portion rather longer than the lobes, obscurely callous below the base of these, within more or 

 less plaited-trisaccate. Stigma large, strongly capitate. 



0. PALLESCENS, Gray, 1. c., as to Nuttall's Euchroma. pallescens only (and which may best 

 retain the name, since one is provided for the species confounded with it), proves to be identical 

 with 0. Parryi, Gray in Amer. Nat. viii. 214, from the Rocky Mountains in Western Wyoming. 

 It is distinguished by a minute and somewhat hoary pubescence (even the inflorescence destitute 

 of villous or hirsute hairs), less leafy stems, looser spike, and the pair of calyx-lobes broader and 

 united high up, lower lip of the corolla rather more ventricose, and the floral leaves or bracts 

 nearly if not absolutely without colored tips. 



* * Root annual, as in all the following species. 



-f- filaments glabrous : upper lip of the corolla straight or nearly so, naked, narrow, 

 lanceolate-triangular or broadly subulate ; the loiver moderately ventricose, and 

 within somewhat plaited-trisaccate for its whole length ; its teeth or lobes erect and 

 conspicuous, oblong-linear : capsule oblong or oval. 



2. O. attenuatus, Gray. Slender, strict, a span or two high, mostly simple, 

 above hirsute-pubescent : leaves linear-attenuate with a few setaceous lobes, or the 

 lower entire : spike virgate, loosely-flowered below, in small specimens with few 

 and rather scattered flowers : bracts with their slender divisions barely white-tipped : 

 corolla narrow throughout, only half an inch long, white or whitish, with one or 

 two purple spots on the lower lip, the narrow teeth of which nearly equal the 

 upper. Pacif. E. Eep. iv. 121. 



Borders of San Francisco Bay, &c. Also Oregon (E. Hall) to Puget Sound, Lynll. Eesembles 

 a slender form of 0. hispidus, but in character more like a depauperate 0. densiflorus, into which 

 it may pass. 



3. O. densiflorus, Benth. Erect or diffusely branched from the base, a span 

 to a foot high, above soft-pubescent : leaves linear or linear-lanceolate and gradually 

 attenuate, with a few slender lobes, or the lower entire : spike dense, many-flowered, 

 at length cylindrical, or the lower flowers somewhat scattered : bracts 3-cleft, about 

 equalling the flowers ; the linear lobes with purplish and white tips : corolla from 

 two thirds to near an inch long, purple and white (the lips or their tips usually 

 purple), the teeth of the moderately dilated lower lip shorter than the upper. 

 Scroph. Ind. & in DC. Prodr. x. 536. 



Low grounds along the coast, from San Luis Obispo to Sonoma Co. The stem is commonly 

 erect, rather than "diffuse" ; and the var. latifolius, Benth., with few or no lobes to the cauline 

 leaves, is the commoner form. Seeds small, short-oval, the mature nucleus very loose in the 

 cellular coat. 



4. O. castilleioid.es, Benth. At length diffusely much branched, a span or 



