APPENDIX. 



JUNCUS. 



491 



Drawn up from the extended revision of the North American species by Dr. George Engelma^nn 

 in Trans. Acad. Sci. St. Louxs, Vol. II., pp. 424-498, (1868.) 



§ 1. GENUINI. Scape naked, the hasal sheaths also leafless, or rarely bearing terete leaves simUar 

 to the scape. 



* Flowers in clusters in a compound panicle ; stamens 6 ; sheaths leaf-bearinff, (unknown in 

 J. Cooperi.) 



1. J. ACUTUS, L. Stout, nearly 40 high ; panicle 6' long ; sepals broadly margined, shorter than in 

 the next, the inner deeply emarginate ; stigmas thick and short-subulate; capsule deep-brown, ahnoat 

 globose.— Europe ; S. Africa ; S. America. Coast of S. California. 



2. J. COOPEEI, Eng. Stout, rigid, nearly 2° high ; clusters 2-5-flowered in a strict green panicle 3' 

 long, 1' wide; outer sepals 3" long, lanceolate, subulate-acute, the inner ovate-lanceolate, mucronate 

 slightly shorter, scarcely exceeding the broadly linear (IJ" long) anthers ; filaments very short ; capsule 

 ovate at base, acute, scarcely angled, indurated, greenish, slightly exserted; seeds rather large, append- 

 aged, costate-reticulate.— S. California, (Cooper.) 



3. J. RasMEKiANUS, Scheele. Panicle effuse ; inner sepals shorter, obtusish ; anthers deciduous ; 

 style very short ; capsule obtuse, with spongy placentse, deep-brown ; seeds oval, obtuse.— N. Carolina 

 to Florida ; Texas. 



* * Flowers solitary in the panicle. 

 (a.) Flowers many ; panicle more or less compound. 

 (1.) Ra,ther stout ; capsules ovate or obovate ; hexandrous, the anthers stout, on very short fila- 

 ments. 



(l^) Sheaths leaf-bearing. 



4. J. COMPEESSUS, HBK. Eootstock creeping ; scape 10-18' high, compressed ; sheaths with short 

 leaves or sometimes blunt and leafless ; panicle small, rather simple, the extreme branchlets with secund 

 flowers ; sepals lanceolate, the outer acute, the inner a little shorter, obtusish, f-J longer than the sta- 

 mens; style nearly equaling the ovary; capsule ovate, acute; seeds ovate, obtuse, sfiarcely pointed, 

 smoothish. — Salinas Valley, California ; Northern Mexico. 



(V>.) Sheaths leafless. 



5. J. Bkbwbri, Eng. Eootstock perpendicular ; scape 1° high, compressed ; panicle small, rather 

 compact ; sepals 2J" long, subequal, ovate, broadly margined, abruptly acuminate ; stigmas exserted ; 

 style equaling the ovary. — Capsule and seeds unknown. Monterey, California. 



6. J. Balticus, Deth., Var. littorams, Eng. Scape terete ; outer sepals 2" long, acute, the inner 

 obtusish, shorter ; capsule elliptical, rather triangular, obtuse and pointed ; seeds ovate, obtuse, very 

 shortly apioulate, i" long or more. — Newfoundland to N. England and Pennsylvania, and west to the 

 Upper Mississippi. 



Var. MONTAHUS, Eng. Sepals nearly equal and similar, or the inner more obtuse; capsule ovate- 

 pyramidal, angled, beaked ; seeds smaller, narrower, longer apioulate. See page 356. 



7. J. Lesububh, Bol. Eootstock creeping ; scape 2-3° high, stout, soft, terete, often 2-3" thick and 

 fistulous ; panicle usually compact ; flowers secund, 2^-3" long ; sepals lanceolate, the outer very acute, a 

 little exceeding the obtuse inner ones, all connivent above the shorter or equal ovate acute capsule; seeds 

 i" long, ovate, obtuse, shortly or scarcely apioulate, very minutely reticulate or smoothish. — San Fran- 

 cisco ; Chili. 



(2.) Eather stout; sheaths leafless ; capsules ovate or obovate ; triandrous; filaments nearly equal- 

 ing the linear anthers. 



8. J. PROCERUS, E. Mey. (?) Scape 3° high, terete ; sheaths dark-brown, obtuse, shortly awned ; 

 panicle decompound, dense, many-rayed and corymb-like ; sepals equal, lanceolate, the outer aoute-subu- 

 late, the inner obtuse, mucronate, equaU-ng the ovate subacute capsule ; stamens one-fourth shorter ; 

 seeds rather large, ovate. — San Francisco ; Chili ? 



9. J. EFEUSUS, L. Sepals very acute ; capsule triangnlar-obovate or clavate, retuse and pointless. — 

 From Maine to the Eio Grande and Pacific. 



(3.) More slender; flowers usually fewer, often greenish, hexandrous ; sepals often spreading in fruit ; 

 capsule subglobose. 



(3».) Sheaths leafless. 



10. J. PATENS, E. Mey. 1^3° high ; sheaths elongated, awned ; panicle 1-2' long, 3-5-branohed, 



