OF ARTS AND SCIENCES. 283 



oblong-oblanceolate, equalling the oblong-ovate capsule : seeds linear. 

 — T. glaberrima, MacBride. N. and S. Carolina ; " Arkansas." 



* * Stem and inflorescence pubescent : pedicels mostly fascicled : seeds more 

 or less caudate. — § Triantha, Nutt. 



4. T. glutinosa, Willd. Glutinous-pubescent: stem slender, \ to 

 1^ feet high : leaves 2 or 3 lines broad : raceme short {\ to 2 inches) : 

 pedicels (2 lines long in fruit) bearing the scarcely lobed involucre 

 near the flower : perianth not becoming rigid : capsule thin and light- 

 colored, oblong, 2l 2 lines long, shortly beaked : seeds minute, with close 

 brownish testa, and a contorted tail at each end. — Smith, Trans. 

 Linn. Soc. 12. 246, t. 8, f. 2 ; Hook. Fl. Bor.-Am. 2. 179, t. 191. 

 Narthecium, Michx. Alaska to Oregon, Wyoming and Canada (to 

 New Brunswick), and in the Alleghanies to North Carolina. 



5. T. ptjbens, Pers. Pubescence more scabrous : stem 1 to 3 feet 

 high : perianth becoming rigid about the firm dark-colored ovate and 

 long-beaked capsule : seeds larger (§ line long), with a short white 

 appendage at each end. — Hook. Bot. Mag. t. 3859. Melanthium 

 racemosum, Walt. M. aspericaule, Poir. Narthecium pubens, Michx. 

 Narthecium (?) scabrum, Raf. New Jersey to Florida and Alabama. 



6. T. occidentalis. Stem (1 to 2 feet high) and pedicels below 

 the involucres viscid-pubescent : raceme an inch long, and pedicels 

 becoming 3 to 5 lines long : involucre 3-lobed nearly to the middle, 

 often reddish: perianth 2 J or 3 lines long: capsule thin, obovate, 

 3 or 4 lines long, long-beaked : seeds angular-ovate, with loose white 

 spongy testa, and a slender tail at the outer end nearly as long as the 

 body. — N. California (Mendocino County, n. 1022, Kell. & Harf.) to 

 Washington Territory (Cascade Mountains, Lyall). 



48. PLEEA, Michx. 



1. P. tenuifolia, Michx. Glabrous : stem a foot or two high : 

 leaves perennial, rather rigid, 1 to 1 \ lines wide, the cauline (2 or 3) 

 sheathing : raceme about 6-flowered, the pedicels (an inch long or 

 more) about equalling the conspicuous leafy bracts : perianth-segments 

 6 lines long, twice longer than the stamens and exceeding the cap- 

 sule : seeds a line long, shorter than the contorted tail. — Flora, 1. 

 245, t. 25 ; Sims, Bot. Mag. t. 1956. North Carolina to Florida. 



49. NARTHECIUM, Moehr. 



1. N. Americanum, Ker. Stem a foot high or more : leaves a line 

 wide, 7-9 -nerved : raceme dense, an inch or two long : perianth- 



