APPENDIX. 495 



. (b.) Seeils caudate. 

 (1.) Stamens 3. 



49. J. Canadensis, J. Gay. Heads few-many-flowered ; outer sepals the shorter ; capsule prismatic, 

 mostly exsert and short-pointed.— Very variable. From N. England and Canada to Wisconsin, and south- 

 ward to Georgia, Ohio and Illinois ; Louisiana. 



(2.) Stamens 6, (or often 3 in J. mudatits.) 



50. J. CAUDATUS, Chapm. Stems 3-3° high, terete and with the rigid leaves smooth ; panicle com- 

 pound or decompound, suherect, 2-6' long ; heads 2-5-flowerod ; sepals nearly 2" long, lanceolate, 3-5- 

 nerved, the outer acute, equaling the stamens, the inner subulate, longer ; style very short ; stigmas 

 exserted ; capsule pyramidal, acute, dark-red, long-exserted ; seeds linear-oblong, many-striate, i" long, 

 the tail mostly longer. — S. Carolina, to Florida and Louisiana. 



51. J. ASPBB, Eng. 2-3° high, stem and leaves rough ; sepals 2}" long ; seeds larger, dark, the tails 

 often reddish, — N. Jersey. 



* * Leaves compressed and equitant, ensiform. Stems compressed or ancipital ; flowers pedicelled, 

 in few-many-flowered heads ; stamens 6-3. 



52. J. Mertensianus, Bong. Stems compressed, 7-14' high ; flowers very dark brown in a single 

 head, rarely 2-3 ; capsule broadly obovate, obtuse, mucronate. See page 358. 



53. J. xiPHioxDES, E. Mey. Stems 1-4° high, ancipital; heads few or many; capsule prismatic, 

 acute, sometimes rostrate. — Very variable. See page 358. Other forms occur in California and north- 

 ward to Unalaska. 



54. J. OXYMERIS, Eng. Stems 2-3° high from a creeping rootstock, erect or ascending, comiiressed ; 

 leaves l-2i" wide ; panicle decompound, 4-6' long, spreading or strict; heads 5-10-flowered, pale ; sepals 

 about 2" long, linear-lanceolate, acuminate-awned, the inner often a little the longer, mostly shorter than 

 the lanceolate rostrate 1-celled capsule ; stigmas exserted, the style equaling tlio ovary ; seeds J' long, 

 ovate-oblanceolate, reticulate with smooth areas. — California. 



55. J. PH2E0CBPI-IALTJS, Eng. Stems erect, compressed, with 1, few or rarely more heads; sepals 

 2-2-J" long, dark-brown, lanceolate-ovate, equal, acute to subulate or sometimes obtuse, usually equaling 

 the obtuse or acute long-mucronate capsule ; anthers 2-3 times longer than the filament ; style equaling 

 tlie ovary ; stigmas long, exserted ; seeds ovate, pointed each way, i" long, reticulate, the areas smooth- 

 ish. — California ; variable. 



56. J. CHLOROCEPiiALUS, Eng. Heads pale ; sepals broad and obtuse ; style several times longer 

 than the ovate ovary ; stigmas shorter ; capsule ovate, obtuse, shorter than the sepals. See page 359. 



