Eriophorum.'] CYPERACE^. 



231 



2. E» vaginatutHn L. — E. BoL L 873. Rich, App, ed. 2. />. 2. — Gra^, Gram, et Cyp, 

 Part L n. 88 — E. caespitosura, Host^ Gram, t 38. Ph, — )S. foliis culmo duplo breviori- 

 bus. — 7. perigynii pilis fulvis. 



Hab. Newfoundland. Mr Cormack. Canada (Mrs Perceval) to Fort Enterprise. Dr Richardson, 

 Drummond. — j3. Saskatchawan. — y. Newfoundland. Mr Cormack, Lake Huron. Dr Todd, — This is cer- 

 tainly a highly variable species, not only in the length of the leaves, which are generally shorter, though 

 sometimes twice as long as the culms, but also in the spikes, which, according to some of Mr Drummond's 

 specimens, do vary not only in the length of the hairs, but also in the form of the spike, being sometimes 

 oblongo-ovate, and sometimes spherical. Thus I am not surprised at Dr Torrey, who remarks in his valu- 

 able account of North American Cyperacece^ that E. capitatum is very difficult to be distinguished from E, 

 vaginatum. 



3. E. capitatum. Host, — Engl, Bot. t, 2387. Br, App, to Parry's \st Voy, p, 284. 

 Hook, in Parry's 2d Voy, p, 407. — E. Scbeuchzeri. Roth, — E. Chamissoi. Mert, in 

 Mem, Acad. Petersb. 6tk Ser. 1. p. 203. / 3. Torr, Cyp. p, 237.— ^. foliis scabris. 

 E. callithrix. Cham, et Mey. Cyp, Nov. in Mem, Acad, Petersb, 6th Ser, 1. p. 203. t, 23. 



Hab, Labrador. Miss Srenton. Newfoundland. Mr Cormack, From Quebec {Mrs Skeppard) to the 

 swamps on the summits of the Rocky Mountains (Dnimmond), and to the Arctic coasts and islands. Dr 

 Richardson. Unalaschka. Chamisso. — iS. St Lawrence, Behrings Straits. — See the remarks on the pre- 

 ceding species. My authentic specimen of E. Chamissoi precisely accords with E, capitatum. 



** Spikes several. 



4. E, Virginicum, L, — Mx, — Ph, — Gray, Gram, et Cyp, Part L n, 89. 



Hab. Canada to the Saskatchawan. Mrs Skeppard. Dr Richardson, — Readily distinguished by its nearly 

 sessile spikes, and constantly tawny hairs. 



5. E, polystachyon, L, — E, Bot. t, 563. Ph, — Hook, in Parry*s 2d Voy,p, 407, Gray^ 

 Gram, et Cyp, Part I, n, 90. Torrey, Cyp. 339. — E. polyst. ^. Rich. 



Hab, Canada to the Rocky Mountains, and to the Arctic sea-shore and islands. 



6. E. angustifolium. Roth, — E, Bot, t, 564. Ph, — Br. in Parry's \st Voy. App, p, 274. 

 HooL in Parry's 2d Voy. p. 407, Rich. App, ed, 2. p, 2, — E. tenellum. Nutt, — E. poly- 

 stachyon var, tenellum. Gray, Gram, et Cyp, Part I, n, 91. 



Hab. Canada to Arctic America. — I have the same difficulty in determining the limits of the many-spiked 

 Eriophora of North America, as regards those of Britain (as expressed in Brit. Flora, ed. 4. p. 30), E. 

 Virginicum alone excepted. Dr Torrey indeed observes, that the present species is easily distinguished 

 from E. polystachyon by its narrow triangular leaves, one-leaved involucre, and narrow nut. This is the case 

 with the extreme states of the plant ; but Dr Torrey proceeds, ** Mr Brown thinks that the Arctic plant, 

 collected in Parry's 1st voyage, may prove a distinct species, between E, angustifolium and E. polystachyon ;" 

 and further, " he notices two varieties of it, one with smooth, the other with scabrous peduncles," — thus ap- 

 pearing to include the E.pubescens of Smith. 



