ENGELMANN—NORTH AM. SPECIES OP JUNCUS. 468 
subulatis acutissimis subsequalibus stamina 8 dimida sen tertia 
parte superantibus; antheris filamento plerumque brevioribus; 
stigmatibus subsessilibus ovario ovato obtuso seu rarius acu- 
tato sub-brevioribus inclusis; capsula prismatica, mucronata 
seu acutata uniloculari sepala aequante seu excedente; semini- 
bus minutis obovatis seu oblanceolatis utrumque acutis areis 
lineolatis reticulatis. 
Var. a. legitimus: caulibus (1-2-pedalibus) erectis gracili- 
oribus; panicula simplici composita vel deeomposita patula; 
capitulis pluri-seu multi-( 5-12-80-50)floris demum e fusco 
stramineis; floribus majoribus; sepalis SBqualibus seu raro 
exterioribus paulo longioribus capsulam prismaticam obtusi- 
usculam mucronatam fere sequantibus; antheris filamento 
multo brevioribus; ovario ovato acuto.— J. acuminatus , 
Michx. 1, 192; La Harpe, 186; Elliott, 1, 409? Kunth, 3, 335, 
non Auct. Am. plur.; J. pallescens , E. Mey. June. 31, non 
Lamarck; J. paradoxus , E. Mey. 1. c. 30; La Harpe, 141; 
Kunth, 3, 341; non Auct. Am.; J. fraternus , Kunth, 3, 340; 
J. debilis , Gray 1. c. ex parte; J. Pondii , Wood Bot. (1861) 
7^4. 
Yar. (3. debilis: caulibus (spithameis sesquipedalibus) de- 
bilibus erectis sen decumbentibus radicantibusve; capitulis 
pauei-(3-6)floris; floribus minoribus pallidis; capsula acuta 
breviter mucronata exserta.— J. debilis , Gray Man. ed. 2,481. 
Yar. 7. diffusissimus: caulibus (bipedalibus ultra) erectis 
paniculae ultradecompositse ramis numerosissimis filiformibus 
elongatis; capitulis pauci-(3-7)floris pallidis; sepalis angusti- 
oribus stamina fere duplo superantibus; ovario acutato; cap¬ 
sula lineari-lanceolata acuta calyci fere duplo longiore.— J. 
diffusissimus , Buckley, PL Tex. 1. c. p. 9. 
Yar. <}. robustus: caulibus elatis (2-4-pedalibus) erectis 
foliisque elongatis robustis; panicula ultradecomposita patu¬ 
la; capitulis pauci-(5-8)floris stramineo-fuscis; floribus minori¬ 
bus; antheris filamenta sequantibus; capsula ovata obtusa mu¬ 
cronata fusca sepala acutissima paulo excedente. 
All over the States, from Massachusetts southward to the 
Rio Grande, and westward to Missouri; var. a is the most 
common form found in the whole territory indicated; var. (3 1 
have only seen from New Jersey, C. E. Smith; Pennsylvania, 
Schweinitz , Moser , Porter; Ohio, Lea; Kentucky, Short (the 
original of Gray’s J. debilis ); Mississippi, E. Hilgard, and 
South Carolina, Eavenel , but it is probably more extensively 
distributed; var. y, northwestern Texas, Lincecum , Buckley; 
var. 6 , in the Mississippi Yalley from Illinois, Geyer y Mead y 
Vasey , to Missouri! and to Louisiana, J. Hale.—A 11 the forms 
of this species flower early in the season, according to latitude, 
from April to June, and shed their numerous seeds from May 
to July. 
Through the kind liberality of Profs. Roeper of Rostock 
