FIGWORT FAMILY 211 



Calyx-lobes not scarious-margined; lower lip of the corolla densely bearded within. 



70. P. laricifolius. 

 XIV. Ambigui. 

 Corolla^tube over 1 cm. long. 71. P. ambiguus. 



CoroUei-tube about 5 mm. long. 72. P. Thurberi. 



XV. Caespitosi. 

 Leaf-blades obovate, spatulate, or broadly oblancfeolate. 



Leaves green and glabrous or slightly puberulent; calyx-lobes oblong-Ianceolate. 



73. P. suffrutcscens. 

 Leaves densely grayish or whitish puberulent; calyx-lobes lanceolate. 



Calyx-lobes linear-lanceolate, over 5 rum. long; plant grayish puberulent. 



74. P. caespilosus. 

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



75. P. Thompsoniae. 

 Leaf-blades narrowly oblanceolate to linear or filiform. 



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

 leaves like the rest. 

 Leaves green and glabrate. - 



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



76. P. Crandallii. 

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



77. P.. xylus. 

 Leaves densely canescent-puberulent. 78. P. teucrioides. 



Calyx-teeth scarious-margined, dentate or erose; inflorescence many-flowered, racemi- 

 form; floral leaves reduced. 79. P. coloradensis. 



XVI. Glandulosi. 

 One species. SO. P. glandulosus. 



XVII. AztTKEl. 

 Leaves dentate, incised, or pinnatifld. 



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



81. P. venustus. 

 Corolla 1-3 cm. long; flowers in an open more or less leafy panicle with spreading 

 branches; anthers glabrous. 

 Leaves opposite. 



Leaves incised or pinnatifld. 82. P. Richardsonii. 



Leaves merely dentate or serrate. 



Leaves serrate; corolla 15-20 mm. long. 83. P. diffusus. 



Leaves saliently dentate; corolla 12-15 mm. long. 84. P. diphyllus. 

 Leaves in whorls of three. 85. P. tnphyllus. 



Leaves entire. 



Calyx and inflorescence more or less glandiilar; leaves puberulent. 



86. P. Kingii. 

 Calyx and inflorescence glabrous or the latter somewhat puberulent but not glandular. 

 Calyx-lobes lanceolate, acute or acuminate. 



Stem-leaves lanceolate, oblong or oblanceolate to linear, glabrous. 



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



upper oblong; calyx-lobes narrowly lanceolate. 87. P. Leonardi. 

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

 lanceolate, acumixiate. 88. P. platyphyllus. 

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

 Calyx-lobes broadly ovate or obovate, mucronate, scarious-margined; leaves lin- 

 ear to lanceolate. 90. P. sepalulus. 

 XVIII. PUNICEr. 



Stem and leaves puberulent; upper stem-leaves more or less acuminate. 



" 91. P. coccinatus. 



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



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



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



XIX. Babbati. 

 Lower Up bearded within. 94. P. barbatus 



Lower lip glabrous within. 



Anthers glabrous ; leaves usually glabrous. 95. P. Torreyi. 



Anthers long-bearded; leaves usually somewhat puberulent. 96. P. trichander. 



XX. Bhidgesiani. 

 One species. 97. P. Bridgesii. 



8. PENTSTEMONOPSIS Rydb. l. P. Tweedyi. 



9. CHIONOPHILA Benth. l. C. Jamesii. 



10. MIMULUS L. Monkey-flower. 



Calyx oblique, decidedly inflated in fruit; upper tooth much larger than the rest; corolla 

 yellow. 

 Calyx-teeth acute; stem neither rooting at the nodas, nor floating. 



Perennials, usually tall and erect, 3-6 dm. high; corolla 2-3.5 cm. long; upper 

 calyx-tooth half longer than the rest. 



