208 



CYPERACEiE. ICarea:, 



sorted to measurements in my descriptions, as affording something like precision in cliaracter, and I have taken 

 the scale of Vahl in his paper in Act. Holm, as my standard. This has given me trouble, but labor ipsa 

 voluptas. I shall go on and prepare a monograph of the genus, describing a few new species in a paper for 

 the Linnsan Society this winter. I find the grouping of the (perhaps) 550 species of the Carex in one list, a 

 puzzling thing. I have not affected to arrive at anything like natural grouping in the list of the British North 

 American species, but have availed myself of some simple characters, to throw them into as reasonable a 

 succession as I could. In a note at the beginning, I have made a reference to the principal works to be 

 consulted ; but for the sake of brevity, I have not quoted, under each species, all these works. For instance, 

 I have not referred to any author beyond the one who first described the species ; and, therefore, you will 

 not find Willdenow nor Kunth quoted, except in those cases whore it was essential. Had I done so, it 

 would have swelled the paper to an inconvenient size. I have quoted Schkuhr's admirable figures, giving 

 the numbers of the fig, and not the lettering. 



" To do honour to the intrepid men who have so much exalted the character of ous race by their arctic 

 voyages, I have called the new species generally after them, including the name of Dr Richardson's gallant 

 though humble friend, Hepburn ; you will find it necessary, therefore, to change a few of the names I 

 have affixed to the specimens forwarded to you by Hunneman. C.fuscicoJor is C. Liddoni ; C. varia, var. 

 from North America and the Rocky Mountains, is C. Mossi; C. integra is C. Hoppneri. I cannot find 

 any authority for admitting C. squamosa and C. sparganioides as natives of British America." 



A. Spica solitaria, 



* Dioica. 

 t Siig, 2. 



1. C. dioica. L.—SckLf. I._C. Redowskiana. Meyer, t. 4. 



Hab. Carlton House to the Arctic Sea. Br Richardson. Rocky Mountains. Brummond. 



9. C, leiocarpa, MeyeTi t. 5. 



Hab. Sitcha. Bongard, 



t+ Stig. 3. 



3. C. scirpoidea. Mich — C. Wormskioldiana. Horn. FL Dan. 



Hab. Fort Norman, Mackenzie River. Br Richardson. Rocky Mountains. Brummond. Greenland 

 Hornemann. 



** 



Androirvna. 



Superne mascula. 

 t Stig. 2. 



4. C. capitata, L — Schk.f. 80. 



Hab. Hudson's Bay. Br Richardson. Torrey, Rocky Mountains. Br Richardson. Greenland. 

 Hornemann. 



5. Cfilifdia. Nuttall, Gen. N. Am. PL 2. 204 Uncinia breviseta. Torr. 



Hab. Carlton House. Br Richardson. Rocky Mountains. Brummond. Missouri River. Bradbury, 

 m herb. Hooker. (Stigmas often 3.) Hook. 



