LAMSON-SCEIBNEB AND MEEEILL GEASSES OF ALASKA. 57 



2b. Agrostis hyemalis geminata (Trin.) llitchc. U. S. Dept. Agr. Bur, PI. Ind. 

 Bull. 68: 44. 1905. 



Agrostis geminata Trin. Gram. Unifl. 207. 1824. 



A low subspecies, 20 to 40 cm. high, with ample, diffuse panicles and awned spike- 

 lets; awn slender, straight, about equaling the lemma. 



Aleutian Islands and Kodiak Island. 



Specimens examined: Kodiak, Piper 4622; Unalaska, Eschscholtz; Yakutat, Piper 

 4630 in part; Ratz Harbor, Prince of Wales Island, Flett 2014; Juneau, Cole, in 1899, 

 Coville & Kearney 2461, 2509, Brewer & Coe 574, Trelease & Saunders 2900; Sitka, Piper 

 4623. 



The specimen collected by Brewer & Coe, no. 574, exactly matches the duplicate 

 type and Trinius's plate and description of the species; the other specimens cited are 

 larger and more robust, but are evidently the same. 



3. Agrostis exarata Trin. Gram. Unifl. 207. 1824. 



A rather stout, erect, nearly glabrous perennial, 30 to 80 cm. high, with flat, linear- 

 lanceolate, somewhat scabrous leaves 3 to 8 mm. wide, and elongated, narrow, many- 

 flowered, green or pale panicles 10 to 25 cm. long, 1 to 3 cm. in diameter, the branches 

 fasciculate, flower-bearing throughout, appressed or ascending, the lower ones some- 

 times 8 cm. long; spikelets 3 to 4.5 mm. long; glumes lanceolate, acuminate, scabrous, 

 much exceeding the glabrous lemma, the latter about 2 mm. long; palea very small 

 or wanting. 



In wet soils, the Aleutian Islands to southeastern Alaska, thence to Wisconsin, 

 Texas, and California. 



Specimens examined: Apollo, Piper 4645, 4638, 4643; Atka Island, Macoun 31, 

 Turner 1210; Unalaska, Evans 518, Applegate, Harrington in 1871-72, Piper 4639, 4644. 

 Juneau, Cole in 1899, Coville & Kearney 2473; Sitka, Mertens (from Herb. Acad. St. 

 Petersb.), Piper 4640; Yakutat, Piper 4641, 4642; Yes Bay, Howell 1710; without 

 locality, Funston 118. 



4. Agrostis melaleuca (Trin.) Hitchc. U. S. Dept. Agr. Bur. PI. Ind. Bull. 68: 51. 



1905. 



Agrostis canina melaleuca Trin. in Bong. Mem. Acad. St. Petersb. VI. Math. Phys. 

 Nat. 2: 170. 1832. 



A slender, erect, glabrous species 40 to 50 cm. high, with linear soft leaves and 

 slightly spreading, purplish, nodding panicles 5 to 7 cm. long; spikelets about 3 mm. 

 long, glumes subequal ; lemma acute, glabrous, awnless or usually with a short, straight 

 dorsal awn arising from about the middle. 



Unalaska to Cook Inlet and southeastern Alaska. 



Specimens examined: Ankow River, Piper 4626; Kodiak Island, Georgeson 2, 3, 

 Evans 454; Sitka, Piper 4629, Wright in 1891; Seldovia, Piper 4627; Unalaska, Mer- 

 tens (from Herb. Acad. St. Petersb.), Kellogg 119; Yakutat, Piper 4628, 4830 in part; 

 Attu Island, Macoun 32L26. 



5. Agrostis borealis Hartm, Skand. PI. ed. 3. 17. 1838. 

 Agrostis rubra Am. auct. 



A cespitose species 15 to 40 cm. high with narrow, flat leaves, open panicles 5 to 10 

 cm. long, and awned spikelets 2.5 to 3 mm. long; glumes subequal, glabrous except 

 on the keel above; lemma a little shorter than the glumes, ovate-oblong, truncate, 

 awned on the back, the awn geniculate, at least when dry, exceeding the glumes in 

 length . 



Seward Peninsula to Kodiak Island and southeastern Alaska, eastward to Newfound- 

 land and southward to the mountains of New England and North Carolina; also in 

 Europe and Asia. 



Specimens examined: Nome City, Flett 1689; Unalaska, Mertens, Piper 4618; 

 Kodiak, Coville & Kearney 2348, Piper in 1904; Sitka, Wright 1584. 

 19208—10—2 



