288 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



regards the name L. acuminata but uses L. carol in at var. saltuensis for the 

 species found in Wisconsin. These two varieties are discussed more thoroughly 

 by Ebinger (1962b). 



2. Luzula forsteri (Smith) DC. in Lam. & DC. 



Perennial; caespitose, rarely short rhizomes are present, to 4 cm long, 2-3 

 mm wide, having dark brown to purple scale-like leaves and slender adven- 

 titious roots ; blades of the basal leaves flat, 1-3 mm wide, to 20 cm long, margins 

 sparsely pubescent, apex callose-tipped wth a mucronate projection extending 

 from it ; culms erect, slender, smooth, 20-40 cm tall, bearing 2-4 leaves ; sheaths 

 closed, pubescent at the throat with long white hairs; blades linear, 1-2 (rarely 

 3) mm wide, to 8 cm long, margins glabrous to sparsely pubescent, callose-tipped 

 with a mucronate projection ; inflorescence terminal, compound ; pedicels erect 

 to slightly spreading, never nodding or reflexed; basal bract erect, shorter than 

 to equalling the inflorescence, leaf-like, green, the margins sparsely pubescent, 

 callose-tipped; the other bracts light brown with hyaline margins and tips, much 

 shorter ; inner bract at the base of each pedicel, truncate with hyaline tip, gla- 

 brous; outer bract equalling the inner, tip acuminate, sometimes extended into 

 a hair-like tip; bracteoles at the base of each flower ovate-lanceolate, acute to 

 obtuse, usually glabrous, light brown with hyaline margins, one third to half 

 as long as the flower; perianth segments similar, equal, lanceolate with long 

 narrow sharp pointed tips, entire, light brown to black with hyaline margins, 

 3.5-4.5 (rarely 5.0) mm long; stamens 6 shorter than the perianth, filaments 

 linear white, anthers linear equalling or longer than the filaments; pistil erect, 

 ovary three angled, style filiform 1.5 mm long, stigmas erect 3.0 mm long; fruit 

 shorter than to barely equalling the perianth, acute, usually light brown; some- 

 times stramineous; seeds 1.3 mm long, dark brown to black ; caruncle at apex, 

 erect, obtuse, 0.6 mm long or less. 



Key to the Varieties 



1. Rhizomes absent, or if present, very short and not exceeding 1 cm in length, var. forsteri. 

 1. Rhizomes present, usually 3 to 4 cm long and 2 mm in -width. var. rhizomata. 



2a. Luzula forsteri (Smith) DC. in Lam. & DC. var. forsteri 



Luzula forsteri (Smith) DC. in Lam. & DC. Syn. Plantarum 150. 1806. 

 Juncfts forsteri Smith, Fl. Brit. 3: 1395. 1804. 

 Luciola forsteri (Smith) Smith, Engl. Fl. 2: 179. 1824. 



Nemorinia forsteri (Smith) Fourr. Ann. Soc. Linn. Lyon, NS. 17: 172. 1869. 

 Juncodes forsteri (Smith) O. Ktze. Rev. Gen. PI. 2: 724. 1891. 

 Juncoides forsteri (Smith) Druce, Fl. Oxfordshire 2 ed. 434. 1927. 

 Luzula decolor Webb & Berthelot, Hist. Nat. lies Canaries 3: 350. 1849. 



Luzula barrelieri Pourr. ex Lange in Will. & Lange, Prod. Fl. Hisp. 1: 186. 1861. (as a 



synonym of L. forsteri.) 

 Luzula gesneri Bubani, Fl. Pyren. 4: 170. 1901. 



Luzula forsteri (Smith) DC. var. pallida Pari. Fl. Ital. 2: 295. 1852. 



Luzula forsteri (Smith) DC. \ar. flaccida Ascher. & Graebn. Syn. Mitteleur. Fl. 2: 493. 

 1904. 



Luzula forsteri (Smith) DC. var. atrifusca Ascher. & Graebii. Syn. Mitteleur. Fl. 2: 493. 

 1904. 



In this variety very short rhizomes are sometimes present, but usually the 

 plant is caespitose, and mature fruiting specimens are usually 30 to 40 cm tall. 



