JUNCACBAB (RUSH FAMILY) 



275 



subtiliB. 

 Flower x 8. 



588. J. bulbosus. 

 Inflorescence x 2^. 



Ont. Aug., Sept. — The proliferous plants are usually sterile and much larger, 

 with larger diffuse panicles. Fig. 586. 



26. J. subtilis Mey. Creeping or floating, capillary, reddish, in water 

 becoming 4 or 5 dm. long, with elongate capil- 

 lary leaves, on shore forming rosettes (0.5-2 dm. 

 broad) with a tuft of primary leaves (2 or 3 cm. 

 long) and repent branches bearing small fasci- 

 cles of small leaves and axillary or terminal 

 flowers either sessile or short- 

 pedunoled ; flowers and capsule 

 much as in preceding, but fila- 

 ments longer. {J. pelocarpus, 

 var. Engelm.) — Margins and 

 shores of ponds and streams, 



Nfd., Que., and Me. Aug., Sept. Fig. 587. 



27. J. bulbbsus L. Similar, but with hardened bulbous 

 bases, coarser habit, several-flowered glomerules, sharper sepals 

 and petals, and blunt capsule. — Margins and shores of ponds, 

 streams or pools (generally floating). — Lab., Nfd., and N. S. 

 (Eu., n. Afr., Pacific L) Fig. 588. 



28. J. militaris Bigel. Stem stout (3.5-9 dm. high), from 

 a thick creeping rootstook, bearing a solitary stout erect leaf 

 (3-7 dm. long) below the middle, which overtops the crowded 

 and rather contracted cyme ; heads numerous, 5-12(rareiy 25)- 

 flowered ; flowers brownish (3 mm. long); sepals and petals 



lanceolate, the sepals awl-pointed, as long as the nar- 

 rowly-ovoid triangular taper-beaked 1-celled capsule; 

 anthers longer than the filaments; ovary attenuate 

 into a slender style ; 

 seeds (0.6 mm. long) 

 globose-obovoid, ob- 

 tuse, abruptly pointed. 

 — Margins of ponds 

 and streams, N. S. to 

 n. N. Y. and Ala. — 

 Sometimes producing, 

 in deep water, num- 

 berless long capillary 

 submersed leaves from 

 the rootstock. Fig. 

 589. 



29. J. polyc£phaIus 

 Michx. Stout (0.5-1.2 m. high), from a stout 

 horizontal rootstock ; leaves laterally flattened 

 (3-9 mm. wide) ; cyme large (1-3 dm. long), 

 spreading, bearing many distant heads (nearly 

 1 cm. in diameter); flowers 3.5 mm. long; the subulate sepals longer than the 

 similar petals ; anthers about as long as the filaments. (_J. 

 scirpoides, var. Engelm). — Swamps, s. Va. to Fla. and Tex. 

 Fig. 590. 



30. J. nodbsus L. Stem erect (1.5-6 dm. high), slender, 

 from a creeping thread-like and tuber-bearing rootstock, 

 mostly with 2 or 3 slender leaves ; heads few or several, rarely 

 single, 8-20-flowered (7-11 mm. in diameter), overtopped by 

 the involucral leaf; sepals nearly as long as the slender 

 triangular taper-pcinted 1-celled capsule ; anthers oblong, 

 shorter than the filaments; style very short; seeds (0.5 mm. 

 long) obovoid, abruptly mucronate. — Swamps and gravelly 

 banks, e. Que. to Sask., s, to Va., 111., and Neb. July, Aug. 591. .j. nodosus. 

 Fig. 691. ■ Infloreaoence x % 



J. militarls. 

 Part of inflorescence X %. 

 Seed X 18. 



590. J. polycephaluB. 

 Part of inflorescence X %. 

 Seed X 80. 



