70 85. CYPERACE.E. 



tus, nunquam promiscui, per miiltos gracilis intermedios 

 in se iiivicem transeiint." The late Dr. Bromfielcl also 

 seemed much to doubt their permanent diversit}'. 



1184*. SCIKPUS CARINATUS, Sill. 



Area *23*[5**8** 11]. 



South limit in Sussex, South-east Kent. 



North limit in Surrey or Middlesex. 



Estimate of provinces 2. Estimate of counties 1. 



Latitude 50 — 5S. Local (Germ.) tj^pe of distribution. 



Agrarian region. Inferagrarian zone. 



Descends to the coast level, in Channel. 



Ascends, at the coast level, to Thames. 



Range of mean annual temperature 51 — 49. 



Native. Paludal or Lacustral. Very local ; found in 

 the river Arun, in Sussex, and in the Thames, between 

 Middlesex and Surrey. According to the Eev. G. E. 

 Smith, it occurs also in dykes at Lydd, Ham Ponds, and 

 Sandwich; and also in ponds at Eastwear Bay (Cat. 

 South Kent) ; but the Authors of the ' British Flora ' and 

 ' Manual ' ignore these latter stations, — on what ground I 

 know not. " Chickhill Pool, near Enville, and at Him- 

 ley," are two Staffordshire localities on record (" Scott's 

 Stourbridge " ) on very bad authority ; and they probably 

 intended S. sylvaticus, which I have seen at Himley, and 

 have had it brought to me under the name of "carinatus," 

 from the banks of the Thames. " Ashby canal, in the 

 neighbourhood of Twj'^cross " (Rev. A. Bloxam, in Phytol. 

 ii. 642) is the authority for the province of Trent ; but 

 some error may here also be presumed, especially as the 

 species is not admitted iiito Miss Kii'by's Flora of Lei- 

 cestershire. There yet remains another very doubtful 



