110 85. CYPERACE.E. 



Estimate of provinces 3. Estimate of counties 6. 



Latitude 53—58. Highland tj-pe of distribution. 



Arctic region. Midarctic — Superarctic zones. 



Descends to 850 or 800 yards, in East Highlands. 



Ascends to 1200 or 1300 yards, in same province. 



Range of mean annual temperature 39 — 34. 



Native. Rupestral. The five counties above named 

 are all those in which the presence of this species is cre- 

 dibly testified. I have gathered it in the three Highland 

 counties ; that of Caernarvon is authenticated by Mr. C. 

 C. Babington and other botanists ; that of Dumfries rests 

 on the testimony of Mr. William Stevens, who published 

 the station of " rocky cliffs on the top of a hill near Hart- 

 fell " (Phytologist iii. 392), a locality sufficiently probable 

 to be admitted, although a verification of the species there 

 would be desirable. Cheshire may be rejected, as de- 

 pending on no better authority than that of Mr. Bradbuiy, 

 in the Botanist's Guide. Perhaps the altitudes of some 

 of the stations may be lower than is above indicated ; nor 

 is the uj)per limit at all satisfactorily determined. I have 

 seen C. atrata with a cylindrical terminal spikelet entirely 

 of barren flowers, and two distant fertile spikes imder- 

 neath ; thus making a near approach to C. rigida. 



1228. Caeex vulgaris. Fries. 

 (C. csespitosa, Aut. Ang.) 



Area general. 



South limit in Cornwall, Isle of Wight, Kent. 

 North limit in Shetland, Orkney, Hebrides. 

 Estimate of provinces 18. Estimate of coimties 82. 

 Latitude 50—61. British type of distribution. 

 A. A. regions. Inferarctic — Midarctic zones. 



