258 JUNCACEAE 



grass-like and often hairy or villous. Flowers in umbels or panicles or crowded 

 in dense clusters or spikes. Capsule 1-celled ; seeds 1 to 3. Species 61, temperate 

 and cold regions of all continents, but most abundant in the northern hemisphere. 

 (Latin lucus, wood or grove, the habitat of certain species.) 



Flowers solitary at the ends of the branches of the inflorescence. 



Pedicels divaricate - 1. L. divaricata. 



Pedicels erect '- 2. L, parviflora. 



Flowers crowded in spikes or dense clusters. 

 Leaves flat. 



Bracts and bractlets conspicuously fimbriate or ciliate 3. L. subcongesta. 



Bracts and bractlets not fimbriate. 



Flowers in mostly rayed clusters 4. L. campestris. 



Flowers in mostly solitary sessile spikes 5. L. subsessilis. 



Leaves channeled; flowers in a dense nodding spike-like panicle 6. L. spicata. 



1. L. divaricata Wats. (Fig. 45a, b.) Stems 6 to 12 inches high, nearly 

 naked, the leaves in a mostly basal tuft ; herbage quite glabrous ; inflorescence a 

 diffuse cyme with divaricate branches and pedicels. 



Sierra Nevada, 7,000 to 11,000 feet. Nevada, 



Locs. Conner Pass, Heller 7138; Placer Co., Carpenter; Yosemite Park, H. M. Evans; 

 Sawtooth Peak, Hall $ Babcoclc 5690. Mt. Rose, Nev., Kennedy. 



Ref. LUZULA DIVARICATA Wats. Proc. Am. Acad. 14:302 (1879), type loc. northern Sierra 

 Nevada (above Mono Lake, Brewer 1794, 2069, 2334; Sierra Co., Greene, Lemmon). 



2. L. parviflora Desv. Stems 1 to 2% feet high, usually rather leafy, densely 

 leafy at base ; leaves hairy at the sheaths ; inflorescence lax, the branches of the 

 cyme somewhat slender or racemose, distinctly though not strongly drooping; 

 perianth-segments greenish, acute, cuspidate, shorter than the acute shortly- 

 beaked reddish capsule. 



Coniferous woods, Sierra Nevada, far North Coast Ranges. North to Alaska, 

 thence east to Labrador. Europe. 



Locs. Coast Ranges: between Requa and Crescent City, Davy; Dinsmore Ranch, Van Duzen 

 River Valley, Tracy 2877; Eureka, Tracy 810; North Fork Coffee Creek, Goldsmith 19; Shackel- 

 ford Creek, w. Siskiyou Co., Butler 1673; Widow Creek, Mt. Shasta, Goldsmith. Sierra Nevada: 

 McCloud, Goldsmith 9; Whitney Mdws. (ace. Coville). 



Var. f astigiata Bueh. Inflorescence more or less corymbose ; branches slender, only slightly 

 or scarcely at all drooping. Sierra Nevada: Yosemite Creek, Hall $ Babcoclc 3458; Dinkey 

 Big Trees, Hall $ Chandler 371. 



Refs. LUZULA PARVIFLORA Desv. Jour. Bot. 1:144 (1808). Juncus parviflorus Ehrh. Beitr. 

 6:139 (1791), type European. Juncoides parviflorum Cov. Contr. U. S. Nat. Herb. 4:209 

 (1893). Var. FASTIGIATA Buch. Krit. Verz. Juneaceen 83 (1880). L. melanocarpa Desv. var. 

 f astigiata E. Mey. Linnaea 3:374 (1828), type loc. Unalaska. 



3. L. subcongesta Jepson n. comb. (Fig. 45c-e.) Similar in habit to L. 

 parviflora ; pedicels very much shortened and the flowers in capitate clusters at 

 the ends of the branches of the cyme ; bracts and bractlets fimbriate ; perianth 

 dark reddish-brown, merely acute or membranously pointed; capsule dark or 

 black. 



Grassy spots amongst granite rocks, northern Sierra Nevada, 7,000 to 8,000 

 feet. 



Locs. Sonora Peak, A. L. Grant .415; Donner Pass, Heller 7135. 



Refs. LUZULA SUBCONGESTA Jepson. L. spadioea var. subcongesta Wats. Bot. Cal. 2:202 

 (1880), type loc. Donner Lake, Torrey, Greene. Juncoides subcongestum Cov. Muhl. 1:105 

 (1904). J. subcapitatum Heller, Bull. Torr. Club 31:401 (1904). 



4. L. campestris DC. COMMON WOOD-RUSH. (Fig. 46a-c.) Stems erect, 

 leafy, 8 to 15 inches high ; herbage sparsely villous ; leaf -blades 3 to 6 inches long, 

 2 to 3 lines wide, flat, villous at the throat and sparsely so on the margins ; bract 

 foliaceous, shorter than or usually much exceeding the inflorescence; flowers 



