Nuiih American Cijyeracciu. 34 L 



C'ldiib 1:^—18 inches liigli, obtusely triangular, slender, very smooth 

 the whole length. Leaves acutely triangular throughout, 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 bracteiform dark-coloured leaf 5 to 8 inches in 

 length, and another much smaller one. Umbel contracted. Peduncles 

 somewhat pubescent and slightly scabrous, 3 — 10 lines long. Spil^'es 

 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 in the 

 common variety. 



Hab. S2:)hagnous swamp?. Plainfielcl, Massachusett.s, 

 Dr. Fortcr ! ; Utica, New York, Dr. Gray! 



Obs. This variety agrees pretty well with a plant which 

 1 received from Dr. Hooker, under the name of jC. triquetj-um, 

 (E. gracile, Roth, &f Smith, Ertg. Jl.) but I think that it cannot 

 be .separated from E. angustifoliian. 



9. ElilOPHORLM GRACILE, Roth. 



Culm triangular; leaves triquetrous, somewhat filiform; 

 peduncles scabrous ; flowering spikes erect ; nut linear. 



E. gracile, Txolh, in Sims S^- Komo''s ann. of hot. 2. p. 1-50; Smith, 

 Eng. Jl. p. 69 ; Eng. hot. t. 2402; Hook. ! Jl. Scot. p. 20, and in app. to 

 Parrt/s 2nd. voyage, p. 27. 



E. triquetrum, Hoppc ; Rczm. S^'Schult. syst. 2. p. 157; Sprcng. syst. 

 1. p. 211. 



Hab. x\rctic America, Ca^it. Parry. 



Obs. I have seen no undoubted N. American specimens of 

 this Eriophorum, unless I have confounded it with my variety 

 /5. of E. angiistifolium. 



10. Eriophorum strictum, R. Broivn. 

 Culm somewhat terete; leaves straight, flat, triquetrous at 



