ENGELMANN — NORTH AM. SPECIES OP JUNCDS. 463 



subulatis acutissirais subsequalibus stamina 3 diraida sen tertia 

 parte superantibus; antheris filamento plerumque brevioribus; 

 stigmatibus subsessilibus ovario ovato obtuso seu rariua acu- 

 tato sub-brevioribus inclusis; capsula prisraatica mucronata 

 seu acutata uniloculari sepala sequante seu excedente; semini- 

 bus miimtis obovatis seu oblanceolatis utrumque acutis areis 

 lineolatis reticulatis. 



Var. a. legitimus: caulibus (1-2-pedalibus) erectis gracili- 

 oribus; panicula simplici composita vel decomposita patula; 

 capitulis pluri-seu multi-(5-12-80-50)floris demuru e fusco 

 stramineis; floribus majoribus ; sepalis tequalibus seu raro 

 exterioribus paulo longioribus capsulam prismaticam obtusi- 

 usculam mucronatam fere aequantibus; antheris filamento 

 multo brevioribus; ovario ovato acuto. — J. acumiaatus, 

 Michx. 1, 192; La Harpe, 136; Elliott, 1, 409? Kunth, 3, 335, 

 non Auct. Am. plur. ; J. pallescens,R.~ft\.ey. June. 31, n on 

 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) 

 724. 



Var. (i. debilis: caulibus (spithameis sesquipedalibus) de- 

 bilibus erectis seu decumbentibus radicantibusve ; capitulis 

 pauci-(3-6)floris; floribus minoribus pallidis; capsula acuta 

 breviter mucronata exserta. — J. debilis, Gray Man. ed. 2, 481. 



Var. y. diffusissimus : caulibus (bipedalibus ultra) erectis 

 panicula} ultradecompositre 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, PI. Tex. 1. c. p. 9. 



Var. J. robustus: caulibus elatis (2-4-pedalibus) erectis 

 foliisque elongatis robustis; panicula ultradecomposita patu- 

 la; capitulis pauci-(5-8)florisstramineo-fuscis; floribus minori- 

 bus; antheris filamenta aequantibus; 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. $ I 

 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. Ililgard, and 

 South Carolina, Ravenel, but it is probably more extensively 

 distributed ; var. y, northwestern Texas, Lincecum, Buckley; 

 var. d, in the Mississippi Valley from Illinois, Geyer, Mead, 

 Vasey, to Missouri! and to Louisiana, J. Hale. — All 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 



