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The authors intend to determine the geographical distribution of theDuphne petruea Leybold by means of the inventory,of the stations checked on theground of direct recognilions bye the aid of information drawn from specifie literatureon the subject and the reference of plenty of herbaria.This species is a palenendemie remnant of the Tertiary with an extremely specialhabital unable of further expansion even because of its prevailing agamie propagalion.The geographical distribution is limited to a reduced area of eastern Insubria andis comprized in the following geographical date:long.E Greenw.from 10°18′21″to 10°22′12″lat.N from 15°15′29″to 15°19′16″height from 530 m to 2006 mAffter slating the affnities,are examined the morphological characters of the speciesthat reveal its xerophitic mark and then the biological ones that limit its presence inlinle lypical ecological spots and prevent its expansion outside them.
The authors intend to determine the geographical distribution of theDuphne petruea Leybold by means of the inventory, of the stations checked on theground of direct recognilions bye the aid of information drawn from specifie literatureon the subject and the reference of plenty of herbaria.This species is a palenendemie remnant of the Tertiary with an extremely specialhabital unable of further expansion even because of its prevailing agamie propagal. The geographical distribution is limited to a reduced area of eastern Insubria andis comprized in the following geographical date: long.E Greenw.from 10 ° 18 ’21 “to 10 ° 22’12” lat.N from 15 ° 15’29 “to 15 ° 19’16” height from 530 m to 2006 mAffter slating the affnities, are examined the morphological characters of the speciesthat reveal its xerophitic mark and then the biological ones that limit its presence inlinle lypical ecological spots and prevent its expansion outside them.