4 S 4 



JUNCACEAE. 



VOL. I. 



4. Juncoides spicatum (L.) Kuntze. Spiked Wood-rush. Fig. 1216. 



Juncus spicatus L. Sp. PI. 330. 1753. 



Juncoides spicatum Kuntze, Rev. Gen. PI. 725. 1891. 



Luzula spicata DC. Fl. Fr. 3: 161. 1805. 



f Closely tufted, without rootstocks. Stems erect, 

 4'-i6' high, distantly i-3-leaved, tapering to a filiform 

 summit; leaf-blades '-\\" broad, often involute, 

 especially above, tapering to a sharp apex, sparingly 

 webby, especially at the base; inflorescence a nod- 

 ding, spike-like, often interrupted panicle, commonly 

 i'-i' in length, usually exceeded by its lowest 

 involute- foliose bract ; bractlets ovate-lanceolate, 

 acuminate, equalling the perianth, sparingly lacerate ; 

 perianth brown, with hyaline margins, i"-i2" long, 

 its parts lanceolate, aristate-acuminate; capsule 

 broadly ovoid, bluntly acute, about two-thirds as 

 long as the perianth ; seed narrowly and obliquely 

 obovoid, about li" long. 



Labrador to Quebec and Alaska ; mountains of New 

 England and New York ; south in the western mountains 

 to Colorado and California. Also in Europe and Asia. 



5. Juncoides arcticum (Blytt) Coville. Arctic Wood-rush. Fig. 1217. 



Luzula arctica Blytt, Norg. Fl. i : 299. 1861. 



Luzula campestris var. nivalis Laest. Kongl. Vet. Akad. 



Handl. 334. 1822. 

 Juncoides nivale Coville, Mem. Torr. Club 5: 108. 1894. 



Stems tufted, 2'~4' high, erect, i- or 2-leaved. Leaves 

 with sheaths glabrous at the mouth, their blades i"-2" 

 broad, seldom exceeding ii' in length, very minutely 

 roughened on the back, at least toward the apex, flat 

 and tapering to a usually blunt and callous tip; inflo- 

 rescence an erect oblong to ovate, spike-like cluster, 

 i' in height or less, exceeding its lowest semifoliaceous 

 bract; bractlet and perianth dark purple, the former 

 ovate and sparingly lacerate at the hyaline apex; 

 perianth-parts "-i" in length, narrowly oblong, more 

 or less broadly acute at the paler apex, sometimes den- 

 ticulate above; capsule subspheric, obtuse or broadly 

 acute, exceeding the perianth; seed narrowly oblong, 

 about \" long. 



Baffin Bay to Alaska. Also in arctic and alpine Europe 

 and Asia. 



6. Juncoides .hyperboreum (R. Br.) Sheldon. Northern Wood-rush. Fig. 1218. 



Luzula hyperborea R. Br. Suppl. App. Parry's Voy. 183. 



1821. 



Luzula confusa Lindeberg, Nya Bot. Not. 9. 1855. 

 Juncoides hyperboreum Sheldon, Bull. Geol. Surv. Minn. 9 : 



63. 1894. 



Stems tufted, commonly 4'-8' high, erect, i-2-leaved 

 above the base. Leaves with sheaths sparingly ciliate at 

 the mouth, the blades erect, \"-\\" wide at the base, 

 commonly 2$'-?' long, usually involute in age, _not 

 roughened on the back, tapering into a very sharp point ; 

 inflorescence erect, exceeding its lowest foliose bract, 

 consisting of a single oblong cluster \' in length or less, 

 or its one or two lower divisions on peduncles i'-ii' 

 long; bracts and bractlets membranous, fimbriate ; peri- 

 anth-parts brown, paler above, about i}" long, ovate- 

 lanceolate, acuminate, denticulate, or slightly lacerate at 

 the apex; capsule about three-fourths as long as the 

 perianth, ovoid, obtuse ; seed rather narrowly oblong, 

 about 1" long. 



Arctic America, Labrador and the higher mountains of 

 New England. Europe and Asia. 



