CARYOPHYLLACEAE (PINK FAMILY) 181 



Calyx short, less than 1 cm. . . . . . . G. S. tetonensis. 



Calyx 10-15 mm. long 7. S. multicaulis. 



Plants taller (3-7 dm.); flowers usually many, in a spike-like 



thyrse. 



Flowers nodding; petals purple . . . . . . 8. S. Hallii. 



Flowers erect; petals white or purplish . . . . 9. S. Scouleri. 



1. Silene noctiflora L. Sp. PL 419. 1753. A coarse viscid-pubescent or 

 hirsute weed, 3-5 dm. high: leaves lanceolate or broader: flowers few, in loose 

 cymes, fragrant: calyx ovoid, white with green nerves and attenuate teeth: 

 petals bifid, w r hite or pinkish. NIGHT-BLOOMING CATCHFLY. Waste and cul- 

 tivated grounds; sparingly introduced in our range. 



2. Silene antirrhina L. Sp. PI. 419. 1753. Glabrous annual, with one or 

 more of the upper internodes glutinous: stems erect, slender, somewhat 

 branched, 2-5 dm. high: leaves lanceolate or linear: flowers in a dichotomous 

 panicle, on long pedicels: calyx becoming expanded by the enlarging capsule: 

 petals pink. Across the continent. 



3. Silene acaulis L. Sp. PL Ed. 2. 603. 1762. Dwarf tufted perennial, 

 glabrous or nearly so: leaves linear, 8-12 mm. long, crowded: flowers solitary, 

 terminal, usually nearly sessile, sometimes naked-pedunculate: calyx cam- 

 panulate: petals entire or emarginate, purple or purplish, a small scale at the 

 summit of the claw: capsule equaling or surpassing the calyx. Alpine summits 

 throughout the Rocky Mountains. 



4. Silene Menziesil Hook. Fl. Bor. Am. 1: 90. pi. 30. 1830. Glandular- 

 puberulent: stems dichotomously branched, leafy, spreading or decumbent, 

 1-3 dm. high: leaves ovate-lanceolate or oblon<r: peduncles lateral or in the 

 forks of the branches, 1-flowered, equaling the leaves: petals white or pink, 

 crownless, longer than the calyx: capsule equaling the calyx: seeds black, 

 obscurely tuberculate. (S. ateUarioides Xutt.) From New Mexico far north- 

 ward and westward to the coast. 



5. Silene oregana Wats. Proc. Am. Acad. 10: :'>!:;. 1*75. Viscid-pubescent 

 and with fetid odor: stems solitary or several, erect, simple, with racemiform 

 or paniculate inflorescence: leaves oblanceolate, tapering to long petioles; 

 the upper narrower, tending to become lance-linear: calyx cylindrical, con- 

 tracted at base around the stipe of the capsule: petals white, clawed, bearing 

 a crown of two ear-like appendages at the summit of each claw; the blades 

 4-6-cleft into linear segments: capsule distinctly stipitate. From northern 

 Wyoming to Oregon. 



6. Silene tetonensis E. Nels. Bot. Gaz. 30: 117. 1900. Minutely pubescent 

 and above also glandular, 1-2 dm. high: stems several, erect: leaves connate- 

 sheathing at base, linear, or narrowly oblanceolate, '2 X cm. long; the lower 

 with ciliate-margincd petioles: calyx obovoid, 7-10 mm. long, purple-nerved: 

 petals 9-12 mm. long, greenish-white or rose-color, crownless, deeply emar- 

 ginate or cieft to the middle: stipe very short. Northwestern Wyoming and 

 probably in the mountains of Idaho and Montana. 



7. Silene multicaulis Xutt. T. & G. FL X. A. 1: 192. 1838. Grayish- 

 tomentulose and sparingly glandular: stems usually several to many, erect, 

 slender, 2-3 dm. high: leaves narrowly lanceolate or oblong, suberect and 

 tapering to both ends, the upper much reduced: flowers mostly in short 

 3-flowered cymes, pale red: calyx ovate-cylindrical, 12-15 mm. long: petals 

 bifid and crowned with short auriculate appendages. From the western 

 slopes of our mountains to the Pacific. 



8. Silene Hallii Wats. Proc. Am. Acad. 21: 446. 1886. Densely glandular- 

 pubescent, 2-5 dm. high: stems several, from a stout root: leaves oblanceolate, 

 tapering to the base, the lower part of the midrib prominent: flowers verticil- 

 lately spicate, more or less nodding: calyx oblong-campanulate, becoming 

 obovate, strongly green or purple nerved; its teeth triangular, acute, with 

 thin incurved margins: petals purple, with broad ciliate claws and short 

 bifid blades: capsule ovate, short stipitate. In the high mountains of Colorado 

 and Wyoming, 



9. Silene Scouleri Hook. Fl. Bor. Am. 1: 88. 1830. Pubescent and above 



