4. CRUCIFER^. ]55 



been ploughed to fonu a gai-den, in the centre of the new 

 square at Plymouth." — Rev. J. S. Tozer, in British Flora. 



109. Cheibanthus Cheiri, Linn. 



'U///'/ ^"^^ (1 2 3 4 5 J 7 8 /lO 11 12 13 14 15 16). 



'^' Alien. This familiar and favomite shmb of cottage gar- 

 dens has been so long established in many localities, that 

 it might merit the designation of ' denizen,' were not al- 

 most all its habitats on walls and buildings, particularly 

 old castles and abbeys, about which it is likely to have 

 been cultivated in days gone by. 



110. Matthiola incana, Br. 



Area * 2. 



South limit in the Isle of Wight. 



North hmit in the same Isle. 



Estimate of provinces 1. Estimate of coimties 1. 



Latitude 50 — 51. Local type of distribution. 



Agi-aiian region. Inferagrarian zone. 



Descends to 1 



Ascends to ? 



Range of mean annual temperature 51. 



Denizen. Littoral or Eupestral. Said to have former- 

 ly gi-own on rocky cliffs to the eastward of Hastmgs, where 

 it is now extmct. Mr. Mill observed it in inaccessible 

 places on Compton Cliffs, Freshwater Bay, Isle of Wight ; 

 and Mr. Gibson foimd it on cliffs at Steep Hill, a mile 

 westwaid of Ventnor, to all appearance wild, in 1843. Dr. 

 Bromfield favomed me with specimens from Compton 

 Cliffs, and also with the following note : " Matthiola inca- 



