-^ '"''"'■ JUiNCACE.E. 209 



21 J. dubius Engohn 1. c. 459. Stems rather stout, 2 to 4 feet l,ij,^h, fro.u 

 f; l''>'i,'H"l,P I'i' r V r'^^l'^,tf"'"'^^^''';^t compressed : panicle co.npoun.I, dilfuse, 

 3 to 1 2 inches long ; heads G - 20-llowcred, mnnerons : perianth brown or bi'ownish 

 1^ hues long ; the segments lanceolate, acuminate : anthers elongated, exceeding the 

 lilament : capsule ami seeds as in the last. 



Big Tree Grove, Mariposa County {Bolnndcr); Wnlke.-s Basin, Kern County (Ruthrock n 287V 

 Cnyan.ac^ Moun ams /'a/ju.r, „. 384, distributed as J. nodosus); and an a cm UyS^^ 

 ^.SC^'i'' '''' '"''''"'^^' "'^ ■"■ — •""'"■^'- 'Lowell), but fie seJa'tlta sore.S:t 



f ^r' f\ ^,®7^.^,®°f ^^' ^^''^?"- ^^^''" ^'^'T sl^"^l«'-, from a slender creeping root- 

 stock,^ to 2 leet high, somewhat compressed, as also the very narrow (rarely a line 

 broad) leaves : hgu es present : heads small, few to rather many in a short open 

 panic e, or fre.iuently solitary : perianth-segments brownish, lanceolate, acuminate 2 

 lines long: anthers linear, excelling the iilament : stigmas long-exserted : capsule 

 oblong, abruptly acute and beaked, nearly equalling the perianth : seeds minute 

 narrow, apicu ate at each end. — Proc. Amer. Acad. xiv. 303. J. p/uvocephaUs var' 

 f/ntahs, Engelin. 1. c, 473. ' 



Frequent in the Sierra Nevada, from Kern County (Rot/irorl) to Oregon. 

 -K- ^ Leaves flattened lateralbj and cquHant, mostly broader: stem compressed 



and usnalbj acutely edged. 

 _ 23 J. oxymeris, Engelm. 1. c. 483. Diflering from J. dubius only in the an- 

 cipital stems, the broader and llattened leaves (U to 3 lines broad), and in the seeds 

 whicli are lighter colored an-l more finely reticulated : capsule usually more attenuate 

 above exceeding the Imeardanceolate i)erianth-segments : anthers twice longer than 

 tile hlament. ° 



i„J«r.;^^T'''?r ^"""^^ ■""' tl.e .Saeran.cnto Valley to Oregon. Distinguished from the follow- 

 uig speci.'s by the numerous small heads, narrower segments, and narrow attenuate capsule. 



24^ J. Xiphioides, ^[eyer. Stems from a thick creeping rootstock, ancipital 2 

 to 4 feet high : leaves usually broad (2 or even 3 lines wide or more), the sheaths 

 without hgules: heads numerous, few - many- (3-20-) flowered, in a compound 

 panicle: perianth-segments brownish, U lines long, lanceolate, acuminate, about 

 equaling the oblong acute capsule, twice longer than the G stamens: anthers very 

 small, oblong linear, e.pialling or much shorter than the hlaments : seeds very small 

 ovate-oblanceolate, reticulate and iiiiely crossdined within the veiniu". — En^elra' 

 1. c. 481. o o • 



Var. auratus, iM.gclm. 1. c. Ilea.ls few-dowered, pale straw-color: capsule ex- 

 ceeding tli(> perianth, with a loiigiu- slender beak. 



Var. montanus, Engelm. 1. c. Low.u- (usually 11 feet high or less) and leaves 

 narrower (a lino or two wide) : heads few (1 to 9), usually many- (12 - 50-) flowered • 

 perianth usually e(pialling the acute capsule. 



Var. triandrus, Engelm. I. c. 482. A foot or two high : heads solitary or few 

 many-flowered (sometimes several and few-flowereil) : stamens 3 : perianth rather 

 larger, often dark brown, equalling or shorter than the acute capsule. Heads often 

 very large and .almost black. 



_ A very vaiia))le species, ranging from Alaska to California and New Mexico. The typical form 

 IS mostly confined to the Coast Ranges (San Francisco to Fort Tejon), but l.as also been collected 

 in Iruckee Valley {Bloomer, JFalson); the var. aurafui is found on Monte Diablo (^rnrcr) • var 

 vioiUanu^ is a common widely distributed form eastward of the Sierra Nevada ; var. triaiufrm is 

 very similar to it, occurring in the Sierra Neva.la (.•ommoii in the Vosemite Valley, Bolandcr, 

 lorrcij) and also m the Coast Hanges, and northward to Alaska. 



25. J. phaeocephalus, Engelm. 1. c. 484. A similar an<l veiv variable species, 

 dustingui.shed chiclly by the larger antlier.s, usually much exceeding" the filaments and 

 nearly ecpialling the perianth, and by the more do.scly reti(Milated .seeds without 

 cross-lineation ; the typical form (S to 2 feet high) has somewhat larger flowers 



