

< Fig. 



RUSH FAMILY. 



32. Juncus brachycarpus Engelm. Short-fruited Ru*h. 



Juncus brachycarpus Engelm. Trans. St. Louis Acad J- 



467. 1868. 



Rootstocks bearing 1-6 stems; stems erect, 8'~36' 

 high, terete, 1-4 -leaved; blades terete, i" thick or 

 less, seldom exceeding 6' in length, the upper much 

 shorter; inflorescence sometimes 4' high and with 20 

 spherical heads, or smaller and even reduced to a 

 single head; perianth i>^ // -2 // long, its parts subulate, 

 the inner about three-fourths as long as the outer; 

 stamens 3, about half as long as the perianth; capsule 

 one-half to two-thirds as long as the perianth, oblong, 

 acute, mucronate, i-celled, dehiscent through the tip; 

 seed oblong, acute at both ends, about \" long, reticu- 

 late in about 18 longitudinal rows, the areolae smooth 

 and nearly square. 



Southern Ontario, through the Mississippi \ 

 Oklahoma, Texas and Mississippi; also from Nor: 

 lina to Maryland. 



33. Juncus polycephalus Michx. Many -headed Ru>h. \ 



Juncus ftolvftfihah 



fit in n ? scirftoidts var. poly<tp**l*i 



St. Louis Acad. 3: 468. |8& 

 Juncus Engtlmanni Bach Krit. Vrr/ Jt 



Stem stout, about 3 high. 

 leaved. Leave* 20' in length or lea*, the pper 

 shorter; blades vertically flattened, i V : 

 the septa incomplete, or the blade* rarely i 

 merely compressed, and with complete septa, in- 

 florescence 3!i'-i2' high, it* leave* with nearly 

 obsolete blades; heads globose, -i <ttaav 



etcr; perianth i#"-2" long, it* parts obolaU. 

 stamens 3, one-half to three-fourth* a* long a* the 

 perianth; anthers shorter than the filament*; cap- 

 sule subulate, ! -celled, exceeding the perianth. 

 the valves remaining united by the klender beak. 

 their margins finally involute; teed narrowly ob- 

 long, about X" long, acute at each end, whk 

 nearly straight tips, reticulate in aboat u row*. 

 the areolae smooth. 



In swamps, Virginia? to Florid* and T 



34. Juncus scirpoides Lam. Scirpus-like Rush. 



Juncus scirpoides Lam. Encycl. Meth. Bot. 3: 267. 17^- 

 /it >n its scirpoides var. macrostemon Engelm. Trans. St. 



Louis Acad. 2: 467. 1868. 



Stems S'-s high, erect, terete, in clusters from 

 short, horizontal rootstocks. Stem leaves 1-3; blades 

 terete, \" thick or less, usually less than 4' long, the 

 septa perfect; basal leaves similar, but with longer 

 blades; inflorescence strict or slightly spreading, 

 sometimes 6' in length; heads 2-30, either simple, 

 globose, 3" -4" in diameter in flower, and 4"-5#"in 

 fruit, or lobed, and of slightly greater diameter; peri- 

 anth i%"-i%" long, its parts subulate, the inner 

 somewhat shorter; stamens equalling the inner peri- 

 anth-parts, the short anthers exserted at the mouth of 

 the perianth; capsule subulate, i -celled, its long beak 

 exceeding the perianth; seed oblong, abruptly apicu- 

 late at either end, '-%" long, reticulate in 14-* 

 longitudinal rows, the areolae smooth. 



New York to Florida and Louisiana. 





