JUNCACE^:. (RUSH FAMILY.) 493 



1. L. campestris, DC. Stem leafy; leaves linear, hairy; flowers 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, umbellate ; capsule ovate ; seeds with a curved appendage at the 

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

 high. 



2. JUNCUS, L. EUSH. 



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

 Capsule 3-celled, or imperfectly 3-celled ; the partitions adherent to the valves, 

 and bearing the placenta? at their inner edges. Seeds numerous, often append- 

 aged, horizontal. Chiefly perennial. Leaves alternate, often knotted by cross 

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



1. Stems scape-like, jointless, sheathed or leafy at the base: stamens 6 or (in No. 1) 



sometimes 3. 

 * Panicles lateral : stem sheathed at the base. 



1. J. effllSUS, L. Stem soft and spongy; sheaths dark brown; panicle 

 diffuse or contracted ; 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. 



* * Panicles lateral : stem leaf// at the base : leaves terete, pungent. 



2. J. setaceus, Rostk. Stem and leaves slender; sheaths light brown; 

 panicle simple, few-flowered ; flowers single ; sepals rigid, lanceolate-ovate, 

 rather longer than the globose pointed green capsule. Low grounds and swamps, 

 Florida, and northward. May -July. Stems growing in small tufts, l-3 

 high. Capsule coriaceous. 



3. J. maritimus, Lam. Stem and leaves stout and rigid, 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, Muhl.) Brackish 

 marshes along the coast, Florida, and northward. April and May. Stem 4 - 

 5 high. 



* * * Panicles terminal, forking ; leaves channelled or grooved ; the upper ones form- 

 ing an involucre under the panicle. 



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

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

 single ; sepals lanceolate, very acute, one third longer than the ovoid capsule. 

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

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

 green. 



5. J. dichotomus, Ell. Stem tumid at the base, 1-3-leaved; leaves 

 filiform, nearly terete, slightly grooved on the inner side; involucre mostly 

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



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