248 



Remarks on the must Impurtaiit I'laiit-Societies of the Islaml. 



in quantities, with here and there a stray Adiantum CcqiiUus Veneris. As samples of the drier caves 

 those in the sand-stone cHffs of Ktima may be taken. They are often extensive, and a fuU-tfrown man 

 can walk upris^ht inside. In many cases they have formerly been artificially enlars'ed, and now serve as 



Fiij-. 91. Hrilna Hellr rlimhim;- a Plaut-Tivc. BehiW Prodromo. 



sheep-stalls. In the iniiei- recesses^too dai'k for other plants to grow — the walls are richly clad with 

 shade-forms of PariotarUi oflirivaJis subsp. jufhi'ini. Tiie entrance to the cave is lined with a vigoi'ous 

 growth of ruderate plants. 



Hero follows a list of the chief species, whidi fliaractcrizp the tlora of the shady ravines: 



4 



i 



