LAMSON-SCRIBNER AND MERKILL GKASSES OF ALASKA. 79 



Glycerin maritima Mert. & Koch in Rohl. Deutschl. Fl. ed. 3. 1: 588. 1823. 



A glabrous, erect, or decumbent perennial 20 to 60 cm. high, with numerous linear, 

 often involute leaves and open panicles 5 to 15 cm. long, the branches spreading or 

 ascending, naked below, flower-bearing above; spikelets 3 to 8-flowered, 5 to 10 mm. 

 long, the lemmas glabrous, about 3 mm. long. 



In salt marshes and on sea beaches, Cook Inlet and Prince William Sound, south- 

 ward to California, and on the eastern coast of North America from Nova Scotia to 

 Rhode Island; also in Europe and Asia. 



Specimens examined: Cook Inlet, Halibut Cove, Coville & Kearney 2456; Kasilof, 

 Evans 609, 684 (in no. 684 the lemmas are 3.5 mm. long; branches widely spreading); 

 Tyonek, Evans 480; Prince William Sound, near Orca, Coville & Kearney 1336. 



The Alaskan material here referred to Puccinellia maritima differs somewhat from 

 our Atlantic coast plants and also from the European specimens so named, and may 

 possibly be a distinct species, but for the present we deem it advisable to refer it all 

 to Puccinellia maritima. 



Puccixellia distaxs (L.) Pari, has been reported from Alaska by various authors, 

 but it is very certain that this species does not extend to that region, the plants so named 

 being referable to the form here considered as /'. maritima. Puccinellia festucaeformis 

 has also been reported, but the specimens so named are only a large form of P. maritima. 

 This form is represented by the following specimens: Sitka, Piper 4697; Kodiak, 

 Piper 4696, 4700, 4701; Aurora, Piper 4699; Skwashianski Bay (near Sitka) Piper 

 4698. 



23. FESTTJCA L. 



Festuca L. Sp. PI. 73. 1753. 



Spikelets several-flowered, pedicellate in narrow and dense or loose and spreading 

 panicles; rachilla articulated above the glumes and between the florets; glumes 2, 

 unequal; lemmas rounded on the back, at least below, acute or tapering into a straight 

 awn, faintly 3 to 5-nerved, not webbed at the base. Usually cespitose, perennial 

 grasses of various habit. 



Leaf blades flat, 5 to 8 mm. wide \. p subulata. 



Leaf blades narrow, convolute, 2 mm. wide or less. 



Plants with creeping rootstocks, innovations extra vaginal. 



Lemmas smooth or simply scabrous 3. F. rubra. 



Lemmas pubescenl _ . . . 3a F ruhm Mtai . 



beliana. 

 Lemmas lanugmous 3b F rubm lanu _ 



ginosa. 

 Plants densely tufted, roots fibrous, innovations extra- 

 vaginal. 

 Leaves at length falling away from the persistent sheaths; 



palea bidentate 2. F. altaica 



Leaves short and involute, not falling away from the 



sheaths; palea not bidentate 4a. /•'. ovina brachy- 



pitylla. 



I. Festuca subulata Trin. in Bong. Mem. Acad. St. Petersb. VI. Math Phvs Nat 

 2: 173. 1832. 



Festuca jonesii Vasey, Contr. Nat. Herb. 1: 278. 1893. 



A glabrous, erect perennial 60 to 100 cm. high, with broad, plane leaves and ample, 

 few-flowered, usually open panicles 15 to 30 cm. long, the lower branches often 15 cm! 

 in length; leaf blades 10 to 20 cm. long, 6 to 10 mm. wide; spikelets 2 or 3-flowered; 

 glumes unequal, subulate-pointed, lemmas 6 to 7 mm. long, glabrous or nearly so, 

 bearing a slender awn about I cm. in length. 



