HORDEAE 



167 



Plants small, less than 1 foot high; spikes 

 short, 15 mm. long or less, loosely few- 

 flowered. 

 PeriK.snia obovate, obtuse, strongly many- 

 nerved, not beaked. 27. C. aurea. 

 Perigynia lanceolate, acuminate into a 

 beak, few-nerved. 

 Plants taller, 1 to 3 feet high; pistillate 

 spikes 3-4 to 5 inches long, densely 

 many- flowered, cylindric. , 

 Pistillate spikes 3-4 to 1 1-2 inches long. 

 Perigynia pubescent. 

 Perigynia glabrous. 

 Scales green or brown. 



Perigynia lanceolate, 5 to 7 mm. 

 long, long-beaked, strongly di- 

 varicate; scales greenish; 

 Perigynia broadly ovate, 4 mm. 

 long or less, short-beaked, not 

 so strongly divaricate; scales 

 brown. 

 Scales purplish black. 

 Spikes sessile. 

 Spikes pedunculate. 

 Mature perigynia yellowish- 



brown, not nerved. 

 ^Mature perigynia dark chestnut 

 brown, several -nerved. 

 At least some of the pistillate spikes 1 1-2 to 5 

 inches long. 

 Scales long acuminate; perigynia elliptic, 

 nerveless, dull-colored, with minute red- 

 dish-brown dots. 

 Scales obtuse or merely acute. 



Fruiting spikes G to 8 mm. broad; perigynia 

 inflated, shining, yellow, nerved; beak 

 conspicuous. 

 Fruiting .s|)ike 3 mm. broad; perigynia flat- 

 tened, dull, greenish, nerveless; ,^eak 

 very short. 21. 



(^ 



28. C. capilkiris elongata. 



31. C. lanuyxnosa. 



29. C. hystricina. 



C. saxatilis. 



19. C. oul(J'l>-:,s. 



18. C. variabilis. 



20. C. nebruskensis^ 



2 5. C. ultra. 



50. C. utriculata. 



L^ 



ills of the higher 



I. Carex filifolia Xntt. in t/he U 



mountains; in the Upper Sonoran 'l{ 



i/^l. Carex Obtusata Lilj. An uncommon species found in 

 the higher mountains; in the Transition 2i^^^f^ 



/^ 3... Carex douglasii/feoottJEamy' "common in the higher, 

 mountains of the northern ^jartToi the State; in the Transition Zone. 



y' 4. Carex Simulata Myckenzi^^^eported but once on the 

 strength of one of Fendler's /^g«i^ns (No. 881), from about Santa, 

 Fe probably. 



-^0. Carex marcida Boc^tt. Cya»j!fon in wet soil beside springs 

 And streams, in eienagas, et&ffuot zonally restricted. 



