SEDGE FAMILY 



277 



21. Scirpus lineatus Alichx. 

 Reddish Bulrush. Fig. 666. 



Scirpus liitcatus Miclix. Fl. Bor. Am. 1: 32. 1803. 



Perennial by stout rootstocks ; culms triangular, 

 erect, 0.3-1 m. high, leafy. Leaves 4-8 mm. wide, not 

 exceeding the inflorescence, light green, flat, rougli- 

 margined ; umbels decompound, the rays very slender, 

 becoming pendulous; spikelets mostly solitary at the 

 ends of the raylets, oblong, obtuse, 6-10 mm. long, 

 about 2 mm. in diameter ; scales ovate or oblong, 

 reddish-brown with a green midvein ; bristles 6, weak, 

 smooth, entangled, much longer than the achene, 

 equaling the scales or longer ; stamens 3 ; style 

 3-cleft ; achene oblong or oblong-obovoid, pale brown, 

 narrowed at both ends, 3-angled. short-beaked. 



In swamps and wet meadows. Transition Zone; Jackson 

 and Josephine Counties, Oregon; Texas to Georgia, Ontario 

 and New Hampshire. Type locality: Carolina. 



22. Scirpus criniger A. Gray 

 Fringed Bulrush. Fig. 667. 



Scirpus criniger A. Gray, Proc. Am. Acad. 7: 392. 1867. 



Perennial by rootstocks ; culms slender, roughish above, 

 trigonous, erect, 7 dm. high or less. Leaves linear or linear- 

 lanceolate, flat, rough-margined, 3-6 mm. wide, the basal ones 

 sometimes as long as the culm, those of the culm few, distant, 

 short; spikelets 5-10, oblong, 1 cm. long or less, in a dense 

 terminal head subtended by a few involucral bracts 4-8 mm. 

 long ; scales membranous, oblong ; bristles about 6, upwardly 

 barbed, much exserted, 3-4 times as long as the achene ; 

 filaments elongated ; style 3-cleft ; achene oblong-obovate, 

 trigonous, short-tipped, 2-3 mm. long. 



Upland marshes, Canadian Zone, Mendocino and Eldorado Counties, 

 California, to Josephine County, Oregon. Type locality: Red Moun- 

 tain, Humboldt County, California. 



8. DULICHIUM L. C. Richard: Fers. Syii. 1: 63. 1805. 



h. tall perennial sedge with terete hollow-jointed culms, leafy to the top, the lower leaves 

 reduced to sheaths. Spikes axillary, peduncled, simple or compound. Spikelets 2-ranked, flat, 

 linear, falling away from the axis at maturity!?), many-flowered. Scales 2-ranked, carinate, 

 conduplicate, decurrent on the joint below. Flowers perfect. Perianth of 6-9 retrorsely 

 barbed bristles. Stamens 3. Style 2-cleft at the summit, persistent as a beak on the summit 

 of the achene. .Achene linear-oblong. [Name said to be from diilcichiiiiuiii. a Latin name 

 for some sedge.] 



A monotypic genus of eastern North America. 



