juNCACKit:. (kusii family.) 493 



1. L. campestris, DC. Stem Icufy; leaves linear, hairy; ^lowers in 

 dense ovoid umbellate spikes ; capsule roundish ; seeds with a conical append- 

 age at the base. (Juncus campestris, L.) — Dry woods and banks, Florida, and 

 northward. March and April. — Stems clustered, 1° high. 



2. L. pilosa, Willd. Stem leafy; leaves linear or lanceolate-linear, hairy; 

 flowers single, uinhellatc ; capsule ovate ; seeds with a curved appendage at the 

 apex. — Mountains of North Carolina, and northward. May. — Plant 6' - 9' 

 high. 



2. JUNCUS, L. Risn. 



Outer sepals keeled. Stamens 3 or 6. Style very short : stigmas villous. 

 Capsule 3-celled, or imporfeetly 3-cellcd ; tlic partitions adherent to the valves, 

 and bearing the placentae at their inner edges. Seeds numerous, often appeiid- 

 aged, iiorizontal. — Chiefly perennial. Leaves alternate, often knotted by cross 

 partitions. Flowers mostly green, clustered, cymose, or jjaniclcd. 



§ 1. Stems scape-lil-e, jointless, shtathed or li'cj}/ ut the base: htumeus 6 or [in No. 1) 



sometimes .3. 



* Panicks lateral : stem sheathed at the base. 



1 . J. effuSUS, L. Stem soft and s]Jongy ; sheaths dark brown ; panicle 

 diffuse or contracied ; flowers single ; sepals lanceolate, as long as the obovate 

 obtuse obscurely 3-angled light brown capsule. — Bogs and swamps, Florida, 

 and northward ; common. May- Sept. — Stems tufted, 2° - 4° high. 



* * Panlclea lateral : stem l<oJ}/ at the base : leaves terete, punrjent. 



2. J. setaceUS, Hosik. Stem .'Uid leaves slender; sheaths light brown; 

 panicle sim])le, few-flowered ; flowers single ; sepals rigid, lanceolate-ovate, 

 rntber longer than tlie globose ])ointe(l green ca;isu'e. — Low grounds and swamps, 

 Florida, and northward. JIay-Ju'y. — Stems growing in small tufts, l°-3° 

 hig'i. Ca[)sule coriaceous. 



3. J. maritimus, Lam Stem mid leaves stout and ri;' id, hard-pointed ; 

 panicle compound; flowers small, 4-8 in a cluster; sepals lanceolate, as long 

 as the small obovate obtuse dark brown capsule. (J. acutus, Miihl.) — Bi-ackish 

 mar.shes along the coast, Florida, and northward. April and May. — Stem 4° - 

 5° high. 



* * * Panicks terminal , forlcimj : laves chainielled or grooved ; the upper oiks form- 

 iiHj an involucre under the panicle. 



4. J. tenuis, Willd. Stems tough, not tumid at the base, several-leaved ; 

 leaves narrowly linear, channelled ; involucre longer tlian the panicle ; flowers 

 single , sepals lanceolate, veiy acute, one third longer than the ovoid capsule. — 

 Low grounds, Florida, and northward. May and June. — Stem 6' -12' hiirh. 

 Panicle small, the flowers mostly on one side of the branches. Capsule light 

 green. 



.'>. J. diehotomUS, Ell. Stem tumid at the base, l-3-leaved; leaves 

 fi'Horm, nearly terete, slightly grooved on the inner side; involucre mostly 

 ihorier than the cymose panicle ; flowers single ; sepals rigid, ovate-lanceolate, 

 42 



