RUSH FAMILY. 





x 4 . Juncus Greenei Oakes & Tuckerm. Greene' Ruh. (Fig. ot,.) 



fit in us Greenei Oakes & Tuckerm. Am. J. Sci. 45: 37. iftii 

 Stems erect, densely tufted, 8 / -2> i /0 high, Basal 

 ives with slender terete channeled blades one-half or 

 ely two-thirds the length of the stem; stem leave* 

 lone, or a single one below the inflorescence; panicle 

 '-20" high, rather compact, somewhat umbelloiri, 

 luch exceeded by its lowest bract; perianth i \"-\ U" 

 jng, its parts stiff, lanceolate, sharply acute, with 

 jwnish red stripes and apex, the inner shorter; sta- 

 icns 6, half to two-thirds as long as the perianth; an- 

 lers about as long as the filaments; style and stigmas 

 eery short; capsule one-fourth to one-half longer than 

 ic perianth, ovate-lanceolate in outline, truncate at the 

 immit, 3-celled; seed obliquely oblong, \"-\" long. 

 lightly reticulated in about 20-24 rows, the areolae 

 learly square. 



New Brunswick to Xew Jersey, near the coast; 

 Wisconsin, Minnesota and Ontario. 



15. Juncus dichotomus Kll. Forked Rush. (Fig. 9.; 



Juncus //,//,//,. /,///, Kll BiL 8. C ft Ga. I: *ufc 



Closely tufted, i 3 high; leave* all bawl ex- 

 cept those of the inflorescence; sbealha osoally red- 

 dish, the blades terete, channeled along the upper 

 side, about one-half the height of the stem; inflor- 

 escence paniculate, suhsecund. itf'-j V ' high. * 

 ally exceeded by its lowest bract; perianth abont 

 2" long, its parts subulate-lanceolate, green when 

 young, straw-colored when old; *"nr* 6, iboat 

 one-half as long as the perianth, the an then shorter 

 than the filaments; capsule slightly shorter than 

 the perianth, oblong, obtuse, tnurronate. i celled, 

 the placentae intruded half way to the center; seed 

 oblong, dark brown, obliquely apiculate, leas than 

 ' 4 " long, reticulate in about 14 longitudinal 

 the smooth areolae about as long as broad. 

 In dry soil, Maine to Florida Mid Teu*. 



16. Juncus setaceus Rostk. Awl-leaved Rush. 



Juncus setaceus Rostk. Monog. June. 13. pi. i.f. -'. is-u. 



Densely tufted from stout branching rootstocks. 

 Stems terete, spreading and recurved above, i#-3 

 long; leaves all basal except those of the inflores- 

 cence, the uppermost sheath usually bearing a long 

 terete blade similar to the stem, but channeled; the 

 other sheaths with filiform blades less than %' in 

 length; involucral leaf appearing like a continua- 

 tion of the stem, 4'-! long; inflorescence appearing 

 lateral, 2' long or less; perianth i // -2^ // long, its 

 parts lanceolate, acuminate, rigid, widely divergent in 

 fruit; stamens 6; anthers usually longer than the fila- 

 ments; capsule globose, shining, mucronate, i-celled, 

 with intruded placentae, barely, dehiscent; seed sub- 

 globose, %"-y$" long, reticulate in about 12 longi- 

 tudinal rows, the areolae large. 



In marshes, Delaware to Florida and Texas, near tin- 

 coast, extending north in the Mississippi Valley t> M 

 souri. 





