1916] Fernald & Weatherby,— Puccinellia 21 
between the lemmas at anthesis: 1st glume 3-4 mm. long, obtuse or 
acutish; 2d 7-9 mm. long, 3-5-nerved, oblong-lanceolate, acute or 
acuminate, about equaling or longer than the adjacent ere lemma 
4.5-6 mm. long, 7-nerved, elliptic-ovate; palea 3-4 mm. long: anthers 
0.7-1 mm. long: grain 2.2-2.6 mm. long— Prince Epwarp Is- 
LAND: t marsh, Bunbury, — 9, 1912, F sili Long & St. 
John, no. 6 920; border of salt marsh, Bunbury, August 28, 1912, 
Fernald, Long & St. John, no. 6,921 (ryPR i in Gray Herb.). 
In its extreme development (no. 6921) var. longiglumis seems 
sufficiently unlike var. alaskana or the tiny-flowered typical P. pawper- 
cula for specific separation, but numerous collections not only from 
Prince Edward Island but from the mainland show clear intergrada- 
tion. 
Var. alaskana, as it occurs on the Pacific coast, often has the lemmas 
firmer and the panicle-branches more spreading than in much of the 
eastern material, but both these characters reappear in many eastern 
colonies, leaving no character upon which the Atlantic and Pacific 
coast plants seem to be distinguished. 
In publishing P. maritima, var. (?) minor Watson cited two s 
mens: “Shore of Mt. Desert Island (EZ. L. Rand); Labrador GA 4 
Allen).”” The Mt. Desert plant labeled in the Gray Herbarium by 
Watson is var. alaskana, while the Labrador plant of Allen (from 
Salmon Bay, Saguenay County, Quebec) is the little northern plant 
subsequently published by Holm as Glyceria paupercula. The descrip- 
tion of P. maritima var. (?) minor, is clearly based upon the Allen 
plant, having “spikelets 2-4-flowered, the flowers 1” long or less” 
so that the Allen plant stands as the type of var. minor. 
Var. alaskana has been passing very generally in eastern America 
as P. angustata, based upon Poa angustata R. Br., but examination of 
a duplicate type of Brown’s species, preserved in the Gray Herbarium, 
shows it to be a very distinct species, which is unknown to us from 
south of Arctic America. The plant is beautifully illustrated in Flora 
Danica, t. 3006, as Glyceria angustata; and it differs from all forms of 
the more southern P. paupercula in the erose-serrulate and coarsely 
toothed obtuse to subtruncate lemma pubescent on the nerves, and 
in the scabrous pedicels (Frias. 59-62). Outside Greenland and Spitz- 
bergen where the species has been frequently collected, it seems to be 
rare. We have examined American specimens from Goose Fjord, 
Ellesmereland, August 15, 1901, H. G. Simmons, no. 3,436 (herb. 
eol. Surv. Can. no. 80,635); Beechy Island, Lancaster Sound, 
; 
