Tab. 6386. 



HEDYSAEUM Mackenzii. 



Native of North and Arctic America. 



Nat. Ord. Legusiinos^e. — Tribe Hedysare.e. 

 Genus Hedysarum, Linn. (Benth. et Hook. f. Gen. Plant, vol. i. p. 570)'. 



Hedysarcm Mackenziij herbacea, gracilis, ramosus, ramis decnmbentibus ilein 

 ascendentibus teretibus fobisque pube appressa subgriseis, foliolis 5-7-jugis 

 cum impari ellipticis v. lineari-oblongis obtusis retusis v. subacutis enerviis, sti- 

 pulisbasiconnatis subulatis.racemis longe strictepedimculatismultifloris,flori- 

 bus remotiusculis breviter pedicellatis, bracteis minutis deciduis, calycis seg- 

 mentis lanceolate subulatis ccrolla rosea ter brevioribus, vexillo obovato 

 breviter 2-lobo, alis lineari-oblongis carina truncata brevioribus, legumine 4-7- 

 articulato, articulis orbicularibus compressia grosse venosis. 



H. Mackenzii, Richardson in Appendix to Franklins Voy. ed. 2, p. 28; Hook Fl. 



Bor. Am. vol. i. p. 155; Tor,: dt Gr. FIN. Am. vol. i. p. 357; Porter £ 



Coulter, Synops. Fl. Colorado, p. 31. 

 H. canescens, Nutt, ; 1'orr. d- Gr. I. c. 

 H. dasyearpum, Turez. ; Ledeb. Fl. Boss. i. 706. 



A very beautiful herb or almost undershrub, conspicuous 

 for the abundance of its bright rose-coloured flowers disposed 

 in long racemes. It was discovered by Sir John Richardson 

 during Franklin's arduous and perilous journey to the shores 

 of the American polar ocean in 1823, along the whole shores 

 of which it stretches, and since that period it has been found 

 on the Eocky Mountains as far south as the sources of the 

 Saskatchewan River, in Utah and Colerado, and in East 

 Siberia at Ajan on the Sea of Ochotsk. Like all other plants 

 which have a wide distribution in longitude from the Arctic 

 regions southward, it varies greatly in stature, ramification, 

 and in the size of the flower; the polar specimens being but 

 a few inches high, with fewer leaves, fewer pinnules on them, 

 and flowers half as large again as those of the specimen here 

 figured. This state of it would be a most desirable acquisi- 

 tion for the Eock-work Garden. 



Very closely allied to H. Mackenzii is the beautiful H. 



OCTOBER 1st, 1878. 



