66 THE JOURNAL OF BOTANY 
The writers add :—<“ In our A) Sea gathered by the author 
himself, and_ kindly eee pes by Besser, the stems are 
rather compressed, flaccid, and very slender; the leaves erecto- 
patent, 14 in. long, equalling or exceeding the ‘internodes, as thick 
as the stem very narrow, acute, obscurely 8-nerved ; the stipules 
entire, lanceolate, acute, scarious, half as long as the leaves or less, 
broader towards the apex, opposite under the peduncles. Peduncles 
somewhat thickened, ei than the leaves, terminal 1-14 in. long. 
Spikes very short, 8 lines long, few- flow ered. Fruit wanting. In 
lakes =. —. about Wilna. W 
mark on this, that, as contrased with pusillus, the 
sat ees oh ae y much longer, the leaves are more acute, and with 
the aspect of acutifolius on a small pale: and aii a peculiar habit 
that is not found in pusillus, difficult to describe, but best expressed 
by the term ‘‘hard,”’ though this is somewhat lost (in drying ?) in 
Baishonbesh, there is a slight cade Goonies) wdontaten on 
the upper margin, and the fruit is smoother and browner than that 
of pusillus. 
a fo —— represents the history of the species :-— 
ETON RUTILUS Wolfgang! in "pe & Schultes, Syst. 
Vegi ranig iil. 362 . 827). P. pusillus L. var. B! Cham. & Sebi. 
in Linnea, ii. 172 (1827). P. caspitosus Nolte!, ex Reichb. ee 
Germ. et Helv. vii. p. 4 t. 28 (1845); Fries, Summ. Veg. Scand. 
215 (1846); Sonder, Fl. Hamburg. 102 (1851); dpstiarsel , Fi. 
Brandenb. 665 (1 864) + _ Henne Fl. Neu-Vorpommern, 495 (1869); 
Lange, Handb. Danske Fl. ed. 4, 199 (1886); Hartman, — 
k. i st. Li. 
Ns) Pl ed. 12, 54 (889) Prahl, Krit Fl. § Holst. u 
(1890); Macoun, Cat. Canadian Pl. pt. 4, 8 ; pt. 5, 371 
(1890) ; r. Naiad. 42 (1893); Magnin, in Bull 
8 Morong, N. : 
Soc. France, xliii. 446 (1896); Ascherson & Graebner, Syn. 
econ 346 (1897). 
Eaxsicc.—F ries, Herb. Norm. xv. No. 74, 1858-7. 
Rapires. —Reichenbach, Sse Fi. Germ. tg vii. t. 28; Flora 
Danica, t. 2889 ; See N. Amer. Nai 
Distribution. —Swed n (in ete: Sipiahd Bornholm !), 
Denmark!, Finland}, Ransis, Poland, Baltic Provinces, Onega- 
land, Ole netz, Tithuavial. an ig-Holstein!, Holland (Nyman), 
Prussia!, Austria (Nyman), H ungary!, Switzerland?, Mecklen- 
burg (Asch. & Graeb.). Canada: Anticosti!, James B Bay |, Nipigon 
‘aon): United States: New York!, Michi igan!, Minnesota 
(Morong 
