824 SCROPHULARIACEAE 



Corolla about twice as long as the calyx, its galea usually wholly exposed; bracts and calyces distally scarlet- red; 

 leaves deeply cleft from below the middle with usually 2 pairs of slender lobes; stem and leaves finely 

 pilose; plants 1-2 dm. tall. 3^- C. rupicota. 



XV. Pruinosae. 



Calyx-lobes ovate, obtuse to acutish; lower corolla-lip dark green or blackish; leaves entire or usually with 1 

 or 2 pairs of lobes. 60. C. Glcasonu. 



Calyx-lobes lanceolate to lance-attenuate; lower corolla-lip green; leaves usually entire, but the upper sometimes 

 with a pair of lobes. 61. C. pruinosa. 



XVI. Lanatae. 



Corolla 18-21 mm. long, green or greenish, its lower lip hidden within calyx and less than one-third the length 

 of galea; bracts scarlet; stems shrubby and thickened below, densely branched and foliose, the flowering 

 shoots relatively long; indumentum whitened. 

 Hairs of tomentum spreading, conspicuously branched, those on the leaves pilosely disposed; calyx-lobes dis- 

 tinct laterally 5 mm. or less, or else wholly united; lower corolla-lip less than one-fifth the length of 

 galea; plant mostly 3-6 dm. tall. 62. C.foUolosa. 



Hairs of tomentum much finer, arachnoid-lanose, inconspicuously branched, densely matted and somewhat 

 appressed on leaves as well as stems; calyx-lobes wholly united laterally; lower corolla-lip usually 

 about one-fourth the length of galea; plant 2—4 dm. tall. 63. C. hololeuca. 



Corolla 15 mm. long, dull yellow, its lower lip well exserted and about two-thirds the length of galea; bracts 

 green or brownish green; stems shrubby and uniformly branched most of length, the flowering shoots 

 short; indumentum cinereous, of intricately matted short stellate hairs. 64. C. grisca. 



XVII. Plagiotomae. 



Only species. 65. C. plagiotoma. 



XVIII. LiNARIAEFOLIAE. 



Bracts (except sometimes the lowermost) deeply lobed; stem hirsute near base, then glabrous (or sparsely 



pubescent) distally to the hirsute inflorescence; free calyx-lobes lanceolate or linear, attenuate; galea of 



corolla greenish. 66. C. linariacfolia. 



Bracts entire (lanceolate) or else only distally lobed; stem loosely hirsute to pilose or glabrous; galea yellowish. 



Leaves and bracts attenuate to acute tips, the former linear; free calyx-lobes linear-lanceolate to lanceolate; 



galea slenderly attenuate. 67. C. subinclusa. 



Leaves and bracts obtuse, the former linear-lanceolate to lanceolate; free calyx-lobes lanceolate to ovate; 

 galea stout and evidently obtuse-tipped. 68. C. franciscana. 



XIX. Stenanthae. 



Bracts attenuate-acute; lower corolla-lip greenish yellow (or rarely distally dark red). 



Corolla becoming 25-35 mm. long, most of the galea exserted and the lower lip sharply projecting; leaves 

 linear or linear-lanceolate; plant hirsute with spreading glandless hairs interspersed among shorter 

 and denser glandular ones. 69. C. stenantha. 



Corolla 15-20 mm. long, only the distal half of the galea exserted and the lower lip ascending or ascending- 

 appressed; leaves linear-lanceolate to lanceolate; plant more strongly glandular-pubescent^ the gland- 

 less and longer-spreading hairs relatively fewer. 70. C. exiltt. 

 Bracts obtuse to acutish; lower corolla-lip purple-red; corolla 23-28 mm. long, the galea and the ascending lower 

 lip usually mostly exserted. 71. C. spiralis. 



1. Castilleja arachnoidea Greenm. Cobwebby Indian Paint-Brush, Fig. 4845. 



Castilleja arachnoidea Greenm. Bot. Gaz. 53: 510. 1912. 



Orthocarpus pilosus var. arachnoideus Jepson, Man. Fl. PI. Calif. 940. 1925. 

 Castilleja EasHvoodiana Pennell, Notulae Naturae No. 74: 1. 1941. 

 Castilleja fioccosa Pennell ex Peck, Man. PI. Oregon 664. 1941. 



Plant perennial, arachnoid-lanate, the stems clustered, 1-3 dm. tall, simple or branched. 

 Leaves less hairy, linear-lanceolate, with 1 or 2 pairs of linear-attenuate widely spreading lobes ; 

 bracts and calyces distally yellow, or the tips dull reddish; calyx 12-14 mm. long, cleft medianly 

 over one-half its length, laterally slightly less deeply into lance-linear lobes; corolla 10-12 mm. 

 long, its galea 3-4 mm. long, dorsally lanose-pubescent, and the thin margins pale and narrow, 

 its lower lip slightly shorter, proximally forming a low finely lanose-pubescent green trisaccate 

 pouch, the short lobes pale yellow ; capsule 8-9 mm. long. 



Rocky granitic soil, Canadian and Hudsonian Zones; Klamath Mountains of southwestern Oregon and north- 

 western California. Type locality: near Marble Mountain, Siskiyou County, California. July-Aug. 



Castilleja arachnoidea subsp. schizotricha (Greenm.) Pennell. {Castilleja schizotricha Greenm. Bot. Gaz. 

 53: 511. 1912; Orthocarpus schizotrichus Jepson, Man. Fl. PI. Calif. 940. 1925.) Plant 0.8-1 dm. tall, the 

 leaves entire or distally with a pair of lobes, the indumentum of plant and corolla with more evidently branched 

 hairs. On decomposed marble. Marble Mountains, northwestern California. Type locality: Wooley Creek, Siski- 

 you County, California. July-Aug. 



Castilleja arachnoidea subsp. shast6nsis (Eastw.) Pennell, Proc. Acad. Phila. 99: 177. 1947. {Castilleja 

 shastensis Eastw. ex Baker, West Amer. PI. 3: 4. 1904. Nomen nudum.) Bracts and calyces distally dull red, 

 as are the lower lobes of the corolla, the bracts less appressed, ascending-spreading, and the inflorescence less 

 woolly. Open sandy soil, presumably at similar elevations; Mount Shasta and Scott Mountains, Siskiyou County, 

 California. Type locality: Mount Shasta, 7,000 feet altitude. July-Aug. 



2. Castilleja Payneae Eastw. Pumice Indian Paint-brush. Fig. 4846. 



Castilleja Payneae Eastw. Leaflets West. Bot. 2 : 245. 1940. 

 Castilleja ptimicicola Pennell, Notulae Naturae No. 74: 3. 1941. 



Plant perennial, arachnoid-lanate, the clustered stems 1-2 dm. tall, simple or branched. 

 Leaves less hairy, linear-lanceolate, with 1 or 2 pairs of widely spreading linear lobes ; bracts 

 and calyces distally pale greenish yellow to dull red or dull orange-red ; calyx 12-14 mm. long, 

 cleft medianly about one-half its length, laterally slightly less deeply into widely linear obtuse 

 lobes; corolla 12-14 mm. long, its galea 4-6 mm. long, dorsally minutely pubescent, and the 



