sentences:  "hemisphaerica") is habitually a secondary species of these groves.At high altitudes, they come in contact with forests of Scots pine and with the Savin juniper; the latter sometimes forming part of the shrubby stratum.The fact that these are to be found mainly in areas which have been exposed for a large part of the Tertiary and over soils considered "relictos", supposes a great antiquity for such groves.