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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



Although no breeding experiments are available with this species, its rela- 

 tionships can be inferred by its morphology. The similarities of this species to 

 Luzula rufescens are striking. Both typically have stolons, inflorescences that 

 are not strongly compound, and fairly small flowers. 



8. Luzula rufescens Fisch. ex E. Mey. 



Luzula rufescens Fisch. ex E. Mey. Linnaea 22: 385. 1849. 

 Juncodes rufescens (Fisch. ex E. Mey.) O. Ktze. Eev. Gen. PI. 2: 725. 1891. 

 Luzula rufescens Fisch. ex E. Mey. var. macrocarpa Buchenau, Das Pflanzenreich 25(4) : 

 47. 1906. 



Luzula macrocarpa (Buchenau) Nakai, Rep. Veg. Quelpaert 30. 1914. 



Luzula plumosa Wall, ex E. Mey. var. macrocarpa (Buchenau) Ohwi, Fl. Japan 271. 1953. 



Perennial, short stolons to caespitose, stolons to 4 cm long, less than 1 mm 

 wide, having dark brown scale-like leaves and slender adventitious roots ; basal 

 leaves with flat blades, 1-3 mm wide, to 6 (rarely 10) cm long, margins sparsely 

 pubescent, apex callose-tipped; culms erect, slender, smooth, 10-20 (rarely 30) 

 cm tall, bearing 2-3 leaves ; sheaths closed, lightly pubescent at the throat with 

 white hairs; blades linear, flat, 1-2.5 mm wide to 4 (rarely 6) cm long, tapering 

 gradually to the tip, margins glabrous to sparsely pubescent, usually curled to- 

 ward the apex, callose-tipped ; inflorescence terminal, simple, rarely a few sec- 

 ondary pedicels are present; pedicels spreading to slightly nodding, never re- 

 flexed; basal bract erect, much shorter than the inflorescence, leaf -like, green, 

 margins glabrous to slightly pubescent, callose-tipped ; other bracts brown with 

 hyaline margins, short, the inner bract at the base of each pedicel, brown, trun- 

 cate with a hyaline tip, usually glabrous ; outer bract usually shorter than the 

 inner, tip acuminate, usually glabrous ; bracteoles at the base of the flower ovate, 

 hyaline to light brown, half as long as the flower; perianth segments similar, 

 equal, lanceolate, entire, light or dark brown with hyaline margins, 1.6-2.5 mm 

 long ; stamens 6 shorter than the perianth, filaments linear, the same length as 

 the anthers, anthers linear ; pistil erect, ovary acute at the tip, 3 angled, style 

 filiform less than 0.7 mm long, stigmas 3 erect to spreading 1.5 mm long equalling 

 to slightly longer than the perianth ; fruits equalling to exceeding the perianth, 

 to 3.5 mm long, tip acute to subtruncate with a short mucronate tip from the 

 persistent base of the style, stramineous to light brown, sometimes flecked with 

 purple ; seeds 1.4 mm long, dark brown to black ; caruncle erect to slightly curved, 

 narrow, to 0.6 (rarely 1.0) mm long. 



Type. Turczaninow, in Siberia near Irectia. A specimen in the herbarium of 

 the Department of Systematics and Plant Geography, Botanical Institute, Acad- 

 emy of Science, USSR. (LE) is labeled Luzula rufescens, and was originally 

 from the Fischer Herbarium. This specimen was collected by Turczaninow in 

 Irectia in 1828 and probably represents the type of this species. 



Representative Specimens: ALASKA: J. P. Anderson 245 (ALA), 2432 (S), 3497 (S), 

 8802 (S), 9155 (S) ; Anderson $ Brown 10213 (S) ; Anderson $ Gasser 7206 (S) ; G. W. 

 Argus 307 (ALA), 390 (ALA); J. W. Bee 520721-13 (US); Cody $ Webster 5212 (S) ; F. 

 Funston 47 (GH, S, US), 116 (US); A. E. Hodgdon 8316 (S), 8322 (US), 8455 (S), 8584 

 (S), 8856 (S) ; L. H. Jordal 2450 (S, US), 3694 (US) ; A. # E. A. Nelson 3525 (ALA, GH) ; 

 L. ,7. Palmer 245 (US) ; A. E. $ E. #. Porsild 22 (GH, S, US), 126 (GH, S, US), 218 (S) ; 

 E. Scamman 1707 (GH), 1823 (GH), 1951 (GH, US), 2032 (GH), 5689 (GH), 6482 (GH) ; 

 G. Smith 1788 (ALA); Smith # Viereck 2349 (ALA, S) ; L. A. Viereck 1565 (S), 3242 

 (ALA); C. W. Weidman 5 (US). CANADA: (Yukon): Colder $ Billard 3177 (US), 4414 

 (S); A. Eastwood 152 (GH) ; J. M. Macoun (Sept. 1, 1891) (US), (July 12, 1902) (US), 

 (July 28, 1902) (S, US); E. S. Williams (June 14, 1899) (US), (July 16, 1899) (US), (July 



