CENT, XV. 191 



1423, Var. prolifera, with neutral glumes 

 among the heads, they are lane, acum. elongate, 

 3 to 4 imbricate. 



1424, Trist. fulvum Raf. J. nodosus 0. 

 Canada to Virg. all the akin sp. are often blen- 

 ded in this by our botanists, it differs from last 

 by stem less leafy, leaves nodose, heads 1 to 3 

 not echinate nor globose, fulvous not brown. 



1425, Trist. album Raf. J. acum. El. poly- 

 ceph. Short ! glaucum, caule folioso comprersso 

 fol. longissimis angustis compressis nodosis, ca- 

 pitulis 3-5 pedunc. paucifl. albescens,bract, lane, 

 aristatis, cal. echinatis. Kentucky to Carol, 

 slender pedal, leaves 6 to 8 uncial. 



1426, Trist. gladiatum Raf. J. polyceph. 

 Elliot caule folioso compresso striato, fol. gla- 

 diatis compressis nodulosis, capitulis pluris pan- 

 iculatis divaric. sess. et ped. globosis echinatis 

 fuscofulvis Carol, Florida, robust,leaves broad 

 pedal, panicle of 20 to 40 heads. 



1427, Trist. striatum Raf. (fluitans MX. non 

 Dec. vertic. et polyceph, auct) caule teres sub- 

 folioso, fol. filif. vix nodosis, umbella composita 

 3-7fida, capit. sess. et ped, vix glob, pallidis, 

 calic. striatis acum. Canada to Carol, slender 

 stems and leaves. 



1428, Trist. macrocarpon Raf. J. acum, 

 MX. O. sed non El. sylvaticus Mg. non Wild. 

 Canada to Alabama: the synonymy of all these 

 sp. is in utter confusion, I have set aside the 

 specific names nodosum, polyceph. acum. c 

 which apply to nearly all. 



1429, Trist. stellatum Raf. caule filif. folioso, 

 fol. tenuis filif. umbella stellata, capit. paucis 

 stellatis paucifl. cal. lane, acutis Allegh. Mts. 

 semipedal, leaves short, heads small few 1 to 7, 

 fulvescent. 



