GRASS FAMILY 



215 



3. Puccinellia nuttalliana (Schult.) Hitchc. 

 Nuttall's Alkali Grass. Fig. 500. 



Poa airoides Nutt. Gen. PI. 1: 68. 1818, not Koeler, 1802. 



Poa nuttalliana Schult. Mant. 2: 303. 1824. 



Puccinellia airoides Wats. & Coult. in Gray, Man. ed. 6. 



668. 1890. 

 Puccinellia nuttalliana Hitchc. in Jepson, Fl. Calif. 1: 162. 



1912. 



Puccinellia cusickii Weatherby, Rhodora 18: 182. 1916. 



Culms tufted, erect, 40-60 cm. tall ; sheaths and 

 involute blades smooth ; panicle open, 15-20 cm. 

 long, the branches spreading, naked below ; spikelets 

 terete, about 6 mm. long, usually pale ; glumes 

 acutish, the first 1-nerved, 1 mm. long, the second 

 3-nerved, 2 mm. long ; lemmas about 3 mm. long, 

 sparsely pubescent at base. 



Alkaline soil, in the Transition and Upper Sonoran 

 Zones; Dakotas to California and Texas. June-Aug. Type 

 locality: ;\Iandan, North Dakota. 



4. Puccinellia simplex Scribn. 



Little Alkali Grass. Fig'. 501. i 



Puccinellia simf>lex Scribn. U. S. Dept. Agr. Div. Agrost. Circ. 

 16: 1. /. 1. 1899. 



Apparently annual; culms 7-20 cm. tall; blades 

 narrow, soft, fiat, scattered ; panicle narrow, about 

 half the length of the entire plant, the branches few, 

 short and appressed; spikelets 6-8 mm. long, ap- 

 pressed ; glumes strongly 3-nerved, 1 and 2 mm. 

 long; lemmas 2.5 mm. long, tapering from below the 

 middle to the acute apex, pubescent on lower half. 



Alkaline soil, California (Woodland, Blankinshif^ ; Liver- 

 more Pass, Davy; Rabbit Springs, Parish; Tulare County, 

 Congdon) . Mar.-Apr. Type locality: Woodland. 



5. Puccinellia paupercula alaskana. (Scribn. & 

 Alerr. ) Fern. & Weatherby. 



Alaska Alkali Grass. 



Fig. 502. 



Puccinellia alaskana Scribn. & Merr. Contr. U. S. Xat. Herb. 13: 



78. 1910. 

 Puccinellia paupercula alaskana Fern. & Weath. Rhodora 18: 18. 



/. 68-72. 1916. 



Culms erect, tufted, about 30 cm. tall ; blades involute, 

 erect, smooth ; panicles narrow, 5-7 cm. long, the branches 

 about 2-3 cm. long, appressed ; spikelets about 6 mm. 

 long ; glumes 3-nerved, the first 2 mm., the second 3 

 mm. long ; lemmas 3 mm. long, sparingly pubescent at 

 base, especially on the lower part of the rather promi- 

 nent marginal nerves. 



Saline soil along the coast, Alaska to Mendocino County, Cali- 

 fornia, and Newfoundland to Connecticut. Whatcom, Suksdorf ; 

 Umpqua River, Hotvcll; Fort Bragg, Dav\. June-July. Tvpe lo- 

 cality: Alaska. 



This species was referred to P. angustata (R. Br.) Rand & 

 Redf. (Hitchc. in Jepson, Fl. Calif. 1: 163. 1912). 



