468 TRANS. OF THE ACAD. OF SCIENCE. ° 
a a 
ostylus : sepalis equalibus seu seepius exterioribus 
baceductbaiet ; Stylo elongato, capsula plerumque tapeniforininas 
- macrostemon, Gay, in 140. 
B. brachystylus: sepalis shes he seu plerumque exteriori- 
bus, longioribus, stylo ee echinatus. . Gram. 
Lamarck in Herb.! Gray. , Man ed. 2, 481. 
ar. 8, echinatus: caulibus (1}-3-pedalibus) foliisque tere- 
tibus rigidis strictis ; capitulis paucioribus majoribus in pani- 
culam simplicem dispositis ; sepalis exterioribus plerumque 
longioribus stamina dimidia seu tertia parte superantibus ; ; 
antheris filamento (duplo triplove) brevioribus; stylis abbre- 
tis; capsula sepalis equilonga seu rarius exserta; seminibus 
minoribus.— , Ell. Sk 10; J. megacephalus, 
Curtis, in Bost. Jour. N. H. 1, 13 132; J. polycephalus, a. La 
Fete 
es, ot. @. in oes 
ar. y. poly us: eaulibus (2-4- libus) roared 
erectis seu fincetdis hine decumbentibus ; foliie a latere co 
ce falas Ell. 1, 409; Chapm. lycephalus, a. Micliz: 
‘a } i y' 
.; Pursh, 1. c.; Mey. pan: 38; a polycephalus, y. La Harpe, 
minor: caulibus capitulisque paulo minoribus; sepalis 
zqualibus trinerviis; antheris filamentum fere #quantibus ; 
seminibus ies ribus fusifor sae us. 
B. m eaulibus eapitulieque majoribus sepalis uninerviis 
eiviaslonibaa:! interiora tenuia superantibus ; antheris filamento 
brev ae seminibus obovatis abrupte apiculatis. 
Se) m species, coves manecr northeastward as far as 
Piesicyisadh and New Jersey. ave only seen 
from South Carolina, Hb. n. 67 (the po : sith lobed heads), 
to Florida, Alabama and Texas; a. B. is distributed over the 
whole range of the species, from New Jersey and Pennsyl- 
vania, Hb. n. 65, to South Carolina, Hb. n. 66, Arkansas and 
Texas. Var.. has been found from Maryland to Florida, 
Hb. n. 68 and Texas; Var. y. a. from North Carolina to 
Florida, Hb. n. 69, and var. Ree B. fro m the same States west- 
nae on 
headed form of J. nodosus for it.—It flowers, according to lat- 
ee from June to August. 
rise under the name of J. scirpoides a number of 
mprise 
forma,’ several of which have often been taken for distinct 
