X 



FIGWORT FAMILY 



767 



Basal leaf-blades linear-oblanceolate. 



Throat of the corolla fmmelform, glandiilar-pubemlent with- 

 in ^l.^i^S'^^^Jf'i^^T^fx?'^ almost equalling the upper; sterile 



Throat of the corolla almost cylmdric; limb small; lower lip 



shorter than the upper, pubescent A^ithin; sterile flla- 

 meut bearded at least half its length, 

 fetem-leaves narrowly linear; calyx-lobes not scarious- 



margmed. G6. P. oreqanus. 



Stem-leaves narrowly lanceolate; calvx-lobes usually 

 T>..., 1 ^T}^'^} narrow scarious margins. 67. P. radicosus. 

 Basal leaf-blades oval or ovate. 68. P. humilis. 



Xril. L.iRrcrFOLn. 

 ^^^orKro^'^*^^*"^^ scarious-margmed; lower lip of the corolla slightly hairy within 



Calyx-lobes not scarious-raargined; lower lip of the corolla densely ^bea^'etfwitma'^* 



70. P. laricifolius. 



„ „ ^ , XIV. Ambigui. 



Corolla-tube over 1 cm. long. 7-1 p nynhinuuo 



CoroUa-tube about 5 mm. iSng. f |; p^ r^ar&"r" 



XV. Caespitosi. 

 Leaf-blades obovate, spatulate, or broadly oblanceolate. 



-Leaves green and glabrous or slightly puberuient; calyx-lobes oblong-lanceolate. 



Leaves densely grajish or wliitish puberuient; calyx-lobes Ian Jeolare.'^'^'^'^"^^^''^"'^' 

 calyx-lobes Im ear-lanceolate, over 5 mm. long; plant grajish puberuient. 



Calyx-lobes broadly lanceolate, scarcely 5 mm. long; plant almost white. 



Leaf-blades narrowly oblanceolate to linear or fiUform. ^^" ^" ^^^^^^^"'«^- 



Calyx-lobes scarcely scarious-margined, entire; ingorescence few-flowered: floral 



leaves like the rest. 

 Leaves green and glabrate. 



Corolla 20-25 mm. long, deeply 2-lipped, with relatively broad tube. 



/^^»^ 1 -1 c orx 1 . , , 76, p. CrandalUL 



Coroila 15-20 mm. long, less deeply 2-hpped. with a narrow tube. 



Leaves densely canescent-puberulent. 78* p' teucrioides 



Calyx-teeth scarious-margined, dentate or erose; mflorescence many-fiowered. racemi- 

 form; floral leaves reduced. 79. p. coloradensis, 



^ . XVI. Gl-\xdui.osi. 



One species. gO. P, giandulosus, 



XVII. AZTTRET. 



Leaves dentate, incised, or pinnatifid. 



Corolla about 3 cm. long; flowers in a dense terminal panicle; anthers viUous. 



^ 1, 1 o 1 « - SI. p. venustus, 



CoroUa 1-3 cm. long; flowers m an open more or less leafv panicle mth spreading 



branches; anthers glabrous. * ^ & 



Leaves opposite. 



Leaves incised or pinnatifld. 

 Leaves merely dentate or serrate. 



Leaves serrate; corolla 15-20 mm. long. 

 Leaves sahently dentate; corolla 12-15 mm long 

 Leaves in whorls of tlu-ee. 

 Leaves entire. 



Calyx and inflorescence more or less glandular; leaves puberuient. 



Calyx and inflorescence glabrous or the latter somewhat puberuient but not^trlandular 

 Calyx-lobes lanceolate, acute or acuminate. 



Stem-leaves lanceolate, oblong or oblanceolate to hnear, glabrous 



Plant low and decumbent at the base; lower stem-leaves oblanceolate the 



upper oblong; calj'x-lobes narrowly lanceolate. 87. P. Leonardi ' 

 Plant tall; stem-leaves lanceolate or oblong-lanceolate; calyx-lobes ovate- 

 lanceolate, acummate. 88. P. platyphyllus. 

 Stem-leaves linear, puberuient. 89. P. Cusickii 

 Calj-'x-lobes broadly ovate or obovate, mucronate, scarious-margined- leaves Un- 

 ear to lanceolate. 90. P. sepalulus. 



XVIII. PUXICEI. 



Stem ajid leaves puberuient; upper stem-leaves more or less acuminate. 



n^ J , , , , , , 91. P. coccinatus. 



otem and leaves glabrous or nearly so; stem-leaves obtuse or acute. 



Stem-leaves ovate to lanceolate; corolla 2-3 cm. long. 92. P. Eatonii. 



Stem-leaves Unear-lanceolate ; corolla 1.5-2 cm. long. 93. P. utahensis. 



82. P. RichardsoniL 



83. P. diffusus. 



84. P. diphyllus. 



85. P. triphullns. 



Lower Up bearded within. 

 Lower lip glabrous within. 



XIX. Baebati 



94, P. barbatus. 



