62 CARYOPHYLLACE^;. Silene. 



* * Stipules scarious or setiform. 

 + Petals conspicuous : styles distinct. 



6. Spergula. Styles 5, alternate with the sepals and with the entire valves of the capsule. 



7. Lepigonum. Styles and valves of the capsule 3. 



+- -t- Petals inconspicuous or minute : styles united below. 



8. Polycarpon. Sepals and petals entire. Leaves ovate or oblong : stipules scarious. 



9. Loeflingia. Sepals rigid and with a setiform tooth on each side. Leaves subulate or seta- 



ceous : the setiform rigid stipules adnate to each margin. 



DRYMARIA, Willd. , is represented by one or two species in Lower California and by others in 

 Arizona. They have the aspect of Chickweeds (Stellaria), small and scarious stipules, and 2-6- 

 cleft petals. 



1. SILENE, Linn. CATCHFLY. CAMPION. 



Calyx tubular, cylindro-clavate to campanulate, 5-toothed, 10-nerved. Petals 5, 

 with narrow claws ; the blade mostly 2 - many-cleft, and usually crowned with 2 

 scales at the base. Stamens 10, borne with the petals upon the stipe of the ovary. 

 Ovary 1-celled, many-ovuled : styles 3. Capsule dehiscent by 6, rarely 3, short 

 teeth. Seed opaque, tuberculate or echinate, attached marginally : embryo peri- 

 pherical. Annual or mostly perennial herbs, of various habit. Rohrbach, Monog. 

 Silene, and in Linnaea, xxxvi. 170; "Watson, Bot. King Exp. 430, and Proc. Am. 

 Acad. x. 340. 



A genus of 300 or more species, most abundant in the northern temperate regions of the Old 

 World. Of the 25 American species, the larger number is confined to the Rocky Mountains and 

 the region westward. 



* Annuals : flowers small. 



Glabrous : flowers in an open naked dichotomous panicle. 4. S. ANTIRRHINA. 



Villous : flowers racemose or spicate : leaves spatulate. 3. S. GALLICA. 



* * Perennials : calyx campanulate, inflated : flowers few. 



Glandular-puberulent : flowers nodding : blade 4-parted ; claws and fila- 

 ments pubescent. 1. S. CAMPANXJLATA. 



Mostly glabrous : flowers erect : blade bifid ; claws narrow, naked. 2. S. LYALLII. 



Puberulent : calyx somewhat inflated : flowers erect : blade bifid ; claws 



broader. 17. S. DOUGLASII. 



* * * Perennials : calyx oblong-cylindric or clavate. 



Usually low : inflorescence leafy. 



Flowers white, small : blade bifid, without crown. 5. S. MENZIESII. 



Flowers large, pale pink : blade 4 - 6-parted : tomentose above. 6. S. HOOKERI. 



Flowers large, deep scarlet : blade 4-parted : glandular-pubescent or 



puberulent. 7. S. CALIFORNIA. 



Taller : floral bracts small and narrow. 

 Blade of the petals 4-parted or 4-cleft. 

 Flowers large, bright scarlet : blade deeply 4-cleft : leaves narrowly 



lanceolate or linear. 8. S. LACINIATA, 



Slender, subglabrous : calyx short : blade equally 4-parted : capsule 



nearly sessile. 9. S. LEMMONI. 



Stout and tall, glandular : calyx long : blade deeply 4-cleft ; claw 



narrow, villous : stipe long. 10. S. OCCIDENTAUS. 



Slender, puberulent : calyx long : blade 4-cleft ; claw naked ; auri- 

 cles and crown lacerate : stipe long. 11. S. MONTANA. 

 Slender, puberulent : calyx and petals short : blade narrowly 4-parted ; 



narrow claw and filaments villous : stipe short. 12. S. PALMERI. 



Blade of the petals bifid, mostly light rose-color ; lobes mostly oblong. 

 Stout, glandular : calyx-teeth long, lanceolate : petals purplish ; claw 



narrow, not auricled. 13. S. PECTINATA. 



Tall, lax : leaves broadly lanceolate : claw narrowly auricled : stipe 



short : seed not tubercled. 14. S. INCOMPTA. 



