North American Cijiteracca. 341 
Cidm 12 — IS inches high, obtusely triangular, siender, very smooth 
the whole length. Leaves acutely triangular througliout, channelled on 
the upper side ; those of the culm very narrow, scarcely an inch long, 
erect and somewhat pungent ; radical ones longer and broader (1 — 1|) . 
Involucre formed of a bracteiforin dark-coloured leaf 5 to 8 inches in 
length, and another much smaller one. Umbel contracted. Peduneles 
somewhat pubescent and slightly scabrous, 3 — 10 lines long. Spikes 
3 — 6, short ovate. Scales ovate, of a deep livid colour, rather obtu se. 
Hairs a little more than half an inch in length, white. Nut as id the 
common variety. 
Hab. Sphagnous swamp?. Plain field, Massachusetts, 
Dr. Porter! ; Utica, New York, Dr. Gray! 
Obs. This variety agrees pretty well with a plant which 
1 received from Dr. Hooker, under the name of E. triquetrum, 
(E. gracile, Roth, Sf Smith, Eng. jl.) but I think that it cannot 
be separated from E. angustifoUum. 
9. Eriophgrum gracile. Roth. 
Culm triangular; leaves triquetrous, somewhat filiform; 
peduncles scabrous ; flowering spikes erect ; nut linear. 
E. gracile, Itoth, in Sims Sf Ko)ng\s ann. of hot. 2. p. 150; Smith, 
Eng. Jl. p. 69 ; Eng. bat. t. 2402; Hook. ! Jl. Scot. p. 20, and in app. to 
Parry'' s 2nd. voyage, p. 27. 
E. triquetrum, Hoppe ; Ram. Sf Scliidt. syst. 2. p. 157; Spreng. syst. 
1. p. 2U. 
Hab. Arctic America, Capt. Parry. 
Obs. 1 have seen no undoubted N. American specimens of 
this Eriophorum, unless I have confounded it with my variety 
^. of E. angustifoUum. 
10. Eriophorum strictum, R. Brown. 
Culm somewhat terete; leaves straight, flat, triquetrous at 
