FIGWORT FAMILY 737 



Corolla nearly tubular to inflated from tube twice longer than calyx, not whitish; staminode short-bearded or 

 glabrous, not uncinate. 

 Anther-sacs peltately explanate and glabrous; thyrsus virgate, secund; corolla pink to rose-purple. 



Corolla obviously 2-lipped and strongly inflated (except in subsp.), more than 10 mm. wide (except 



in subsp.); leaves glaucous. 48. P.floridus. 



Corolla nearly regrular and tubular-funnelform, 4-8 mm. wide; leaves green or glaucous. 

 Calyx 4-6 mm. high; corolla moderately ampliate, 5-8 mm. wide. 



Leaves thin, glaucous, dentate; corolla rose-purple, with dark guide lines; stems to 10 



dm. tall. Eastern California. 49. P. pseudospectabtlxs. 



Leaves thick, green or glaucous, entire or dentate; corolla crimson or red-purple, with- 

 out guide lines; stems to 7 dm. tall. Western border of California deserts. 



50. P. Clevelandii. 



Calyx 3-4.5 mm. high; corolla essentially tubular, 4-5 mm. wide. Eastern Mojave Desert, 



51. P. Stephensii. 



Anther-sacs not explanate, more or less scabro-ciliate at suture; thyrsus lax (the peduncles divaricate); 

 corolla purplish with blue limb, obviously 2-lipped. 



Leaves narrowly linear-lanceolate and mostly entire; staminode bearded. 



52. P. incertus. 



Leaves broader, the upper connate-perfoliate, coarsely serrate; staminode glabrous. 



53. P. spectabilis. 



Subsection ;. Centranthifolius. 

 Corolla glabrous, scarlet, tubular. 54. P. centranthifolius. 



Corolla carmine to rose-lavender. 



Thyrsus racemiform; corolla glandular-pubescent, carmine; anther-sacs peltately explanate. _ 



55. P. utahensis. 



Thyrsus open and often decompound; corolla glabrous, rose-lavender; anther-sacs boat-shaped. 



56. P. confusus. 



Section 7. Elmigera. 



Corolla obscurely 2-lipped, the short round lobes scarcely spreading. 57. P. Eatonii. 



Corolla strongly 2-lipped, the galeate upper lip erect, the linear lobes of the lower lip sharply reflexed. 



58. P. labrosus. 



Subgenus II. Saccanthera. 

 Section 8. Eusaccanthera. 



Leaves entire; staminode usually glabrous. Mostly California and adjacent borders. 



Subsection k. Heterophylli. 



Leaves serrulate to parted; staminode bearded. Northern Oregon northward. 



Subsection /. Serrulati. 



Subsection k. Heterophylli. 



Staminode bearded; inflorescence glandular-pubescent. 



Anthers 1 mm. long; leaves glabrous; corolla 13-16 mm. long. 59. P. gracilentus. 



Anthers 1.5 mm. or more long; leaves canescent; corolla 24-35 mm. long. 



Calyx-lobes linear-lanceolate, attenuate; corolla-throat rounded and glabrous within; leaves evenly 

 distributed. 60. P. papillatus. 



Calyx-lobes broadly ovate, acute; corolla-throat 2-ridged and villous within; leaves mostly basal. 



61. P. scapoides. 

 Staminode glabrous. 



Leaves mostly basal; orifice of corolla bearded ventrally. 62. P. caesius. 



Leaves well distributed; orifice of corolla glabrous. 



Anthers purple-black, more or less truncate, dehiscent for less than half the length of sacs. North- 

 eastern Oregon. 63. P. Cusickii. 

 Anthers buff to purplish, rounded or pointed, dehiscent for half or more the length of sacs. Southern 

 Oregon to California. 

 Herbage glabrous to finely pubescent; basal leaves narrowly oblanceolate to obovate. 

 Inflorescence glandular-pubescent; peduncles divergent. 

 Leaves not glaucous; corolla blue-purple. 



Leaves linear to oblong or oblanceolate, 2-12 mm. wide, not involute, pubescent to 

 glabrate, without fascicles developing in the axils. 



64. P. laetus. 



Leaves filiform, 0.5-1.5 mm. wide, tightly involute, essentially glabrous, often with 

 fascicles developing in the axils. 65. P. filiformis. 



Leaves glaucous, glabrous; corolla usually tricolored. 66. P. neotericus. 



Inflorescence not glandular; peduncles appressed. 



Leaves just below inflorescence amplexicaul, blue-glaucous, glabrous. 



Corolla 18-30 mm. long; anthers 1.75-3. 25 mm. long. 



67. P. azureus. 



Corolla 14-20 mm. long; anthers 1.4-1.8 mm. long. 68. P. parvulus. 

 Leaves just below inflorescence narrow at base, sessile, rarely glaucous, puberulent or 

 glabrous. 69. P. heterophyllus. 



Herbage densely canescent; basal leaves oval to rotund. 70. P. Purpusii. 



Subsection /. Serrulati. 

 Glandular-pubescent only in the inflorescence if at all; staminode bearded. 

 Inflorescence never glandular; staminode included. 

 Corolla-lobes and fertile filaments glabrous. 

 Corolla-lobes ciliate; fertile filaments pilose above. 

 Inflorescence glandular-pubescent; staminode exserted. 



Corolla pink, mostly 18-30 mm. long; leaves opposite. 

 Corolla blue-lilac, mostly 12-15 mm. long; leaves ternate. 

 Glandular-pubescent throughout; staminode glabrous. 75. P. glanduhsus. 



