Ord 86. CYPEEACEA 



1. DULICHIUM, Richard. 

 1. Dulichium spathaceum, Richard. 



Dulichium spaihaceum, Kichard in Pers. Syn. 1, p. 65; Ell. Sk. 1, p. 73, t. 2, £ 3, 

 Hook. Fl. Bor.-Amer. 2, p. 232; Torr. Cyp. in Ann. Lye. Nat. Hist. K York, 3, 

 p. 247. 



Hab. On the Willamette Kiver, Oregon. We have it also on the 

 Columbia Kiver, collected by Mr. Nuttall. — On the western side of 

 North America this plant has not been found south of Oregon, but 

 on the eastern side it ranges from Canada to Florida. 



2. CYPERUS, Linn. 

 1. Cypekus diandrus, Torr. 



Cyperus diandrns, Torr. Cat. PL N. York, p. 90, & Cyp. 1. c. p. 251; Hook. Fl. 

 Bor.-Amer. 2. p. 232. 



Hab. Upper Sacramento, California. — Spikelets nearly sessile, 

 forming a cluster at the summit of the culm, which is slender and 

 10 to 15 inches long. Nutlets obovate-oblong, dark brown when fully 

 ripe, dull, under a strong lens marked with extremely minute ele- 

 vated dots arranged in longitudinal lines. 



