Columns as on p. 175. 



Habitat. — This variety is common in Corsica and Sardinia, from sea- 

 level to about 1100 metres altitude. Its occurrence in Tunisia has 

 been reported by Camerano, on the evidence of a single specimen, 

 stated to have been obtained in the vicinity of Tunis by the late 

 Marquis O. Antinori in 1865, along with one of the var. tiUguerta. 



