Agrostis genus novis speciebus Americae septentrionalis auctum. 359 
In the type specimen the culm is 20 cm high, panicle loose but not 
diffuse, 5 em long, divaricately branching, flowering glume provided with 
a scarcely exserted straight awn. In all other particulars it agrees with 
a scarcely exserted straight awn. In all other particulars it agrees with 
A. hiemalis. (Pl. XXVIII, fig. 1.) 
Unalaska und British Columbia bis California und Colorado. 
8. Agrostis ($ Euagrostis) perennans (Walt.) Tuckerm. var. elata (Pursh) 
Hitche., Le p. 50. 
Cornucopiae altissima Walt, Fl. Carol, 74. 1788. — Trichodium elatum 
Pursh, FL, I, 61. 1814. — A. elata Trin., Mem. Acad. St. Petersb., Ser. VI, 
VI2, 317. 1841. — A. altissima Tuckerm., Am. Jour, Sci, XLV, 44. 1843. 
This differs from A. perennans in the more slender and elongated 
culms, often decumbent at base, but particularly in the crowding of the 
spikelets toward the ends of the branches, which gives them a more 
drooping appearance, (Pl. XXXIIL) 
Distribution: Swamps, New Jersey to Mississippi. 
9. Agrostis (5 Euagrostis) melaleuca (Trin.) A. S. Hitche., |. c., p. 51. 
A. canina aenea 'Trin., in Bong., Mem. Acad. Sci. St. Petersb., Ser. VI, 
1, 170. 1832. Veg. Sitcha. Not A. aenea Spreng., Syst. Cur. Post., 337. 
1827. — A. aenea Trin., Mem. Acad. St. Petersb., Ser. VI, VI?, 332. 1841. 
— A. exarata aenea Griseb. in Ledeb., Fl. Ross., IV, 441. 1853. — À. ca- 
nina melaleuca Trin., Mem. Acad. St. Petersb., Ser. VI, II, 170. 1832. 
Alaska, British Columbia, Colorado. 
10. Agrostis (5 Euagrostis) longiligula Hitchc., l. c., p. 54. 
Culms erect, tall, 70 em in height. Leaves several; blades 10—15 cm 
long, 3—4 mm wide, scabrous; ligule elongated and decurrent, 5—6 mm 
long. Panicle bronze-purple, 10—18 cm long, rather densely flowered; 
branches very scabrous. Empty glumes acute, scabrous on the keel and 
3 minutely hispidulous on the back, lower nearly 4 mm long, upper about 
3,5 mm; flowering glume about 2,5 mm long, the upper portions of the 
nerves minutely scabrous, awned; awn rising from the middle of the 
back, exserted, 2—2,5 mm long, bent at the middle; callus hairs very 
short; palet minute, about 0,2 mm long. 
The type specimen in the National Herbarium was collected near 
Fort Bragg. Mendocino County, Cal, in water of a meadow, by Davy 
and Blasdale (No. 6110), in 1899. (PI. XXXVI, fig. 3.) The same collec- 
tors found it in other localities in this county (Nos. 6088, 6095, 6096, 
6105, 6106, 6107, 6131, 6140). There is also a specimen without locality 
collected in California by Bolander in 1866 (No. 6472). 
