spinescent; stamens 3; capsule broadly to narrowly ovoid, bluntly apiculate, 2.2-3 

 mm. long. 



Infrequent to rare in moist sand, in mud of streams, and in quiet shallow 

 water, in extreme e. Tex. (Newton and Polk cos.), summer; Coastal States, Conn, 

 to Tex., inland to Tenn. and Mo. 



44. Juncus nodatus Cov. 



Perennial: roots not bearing tuberlike enlargements; culms erect, 6-12 dm. 

 long, 3-5 mm. thick near the middle (as much as 1 cm. thick basally); basal 

 sheaths of culm 6-15 mm. broad; blades 2-5 mm. thick near the middle, essen- 

 tially terete to flattened; septa of blades complete, tough, conspicuous; bract much 

 shorter than the inflorescence; inflorescence terminal, repeatedly much-branched, 

 7-16 cm. long; glomerules 40 to 200 per inflorescence, hemispherical or nar- 

 rower, 2- to 10-flowered; bractlet solitary at the base of the short pedicel; sepals 

 2-2.5 mm. long, 0.6-0.8 mm. broad; petals 1.9-2.3 mm. long, 0.4-0.6 mm. broad; 

 sepals and petals membranous, medially brown, marginally broadly hyaline; stamens 

 3; capsule obpyriform to narrowly ovoid, minutely apiculate, 2.3-2.5 mm. long, 

 golden-brown. 



In marshes, wet savannahs and meadows, in mud and shallow water of sloughs, 

 streams, ditches, ponds and lakes, in Okla. (Atoka, Comanche, Muskogee, 

 Sequoyah, Love, LeFlore and McCurtain cos.), infrequent, e. and s.e. Tex., rare 

 w. to n.-cen. Tex., extreme n. edge of Rio Grande Plains and n. part of Plains 

 Country (Wichita Co.), late spring-summer; La. to Tex., n. to Ind., 111., Mo. and 

 Kan. 



45. Juncus Elliottii Chapm. Fig. 318. 



Perennial; roots often ending in tuberlike enlargements; culms erect or arcuate, 

 3-9 dm. long, 1.5-2 mm. thick near the middle; basal sheaths of culm 4-8 mm. 

 broad; blades 1-2 mm. thick near the middle, laterally compressed; septa of blades 

 present, complete but weak and inconspicuous in prepared specimens; inflores- 

 cence terminal, repeatedly much-branched. 5-14 cm. long; glomerules 40 to 100 

 per inflorescence, 2- to 10-flowered, hemispherical or narrower; bractlet solitary 

 at the base of the short pedicel; sepals 2.6-2.9 mm. long, 0.9-1.1 mm. broad; 

 petals 2.4-2.8 mm. long, 0.6-0.8 mm. broad; sepals and petals dark-golden-brown 

 to fuscous, chartaceous medially, narrowly white-hyaline marginally, becoming 

 semirigid and subspinescent; stamens 3; capsule narrowly obpyriform to narrowly 

 ovoid, 2.4-2.9 mm. long, minutely apiculate, at maturity fuscous. 



In moist or wet areas in savannahs and wet coastal prairies in s.e. Tex., May- 

 Aug.; Coastal States, Del. to La. and Tex. 



2. Luzula DC. Woodrush 



Tufted low perennials with weak pubescent foliage; inflorescence terminal, of 

 a number of simple or nearly simple unequal branches topped by heads or short 

 spikes of flowers; seeds only 3 per capsule. 



A cosmopolitan genus of about 80 species. 



1. Flowers on slender pedicels, in a loose, somewhat drooping decompound cyme; 

 seeds not appendaged 2. L. parviflora. 



1. Flowers crowded in spikes or glomerules; seeds with a caruncle or appendage 



(2) 



2(1). Base of plant bearing firm whitish coralline tubers 1. L. huJbosa. 



2. Plant without white coralline tubers 3. L. campestris var. multiflora. 



1. Luzula bulbosa (Wood) Rydb. Fig. 332. 



Weak tufted perennial, just underground with numerous slightly elongate whitish 

 tuberlike structures (rhizomes?) 2-4 mm. thick; culms 10-25 (-35) cm. long, 



645 



