Lichens Used in Traditional Medicine

This work increases the ethnobotanical data from Northern Italy and, in particular, the Lombardy region, till now poorly documented, safeguarding the local folk knowledge, and provides information on new or scarcely reported properties of medicinal plants, whose traditional use needs to be validated experimentally. The present study aimed to gather, analyse and evaluate the ethnobotanical information on the species used for medicinal and food purposes by the native people of Val San Giacomo. The plant use was documented by speaking with more than 100 people, mainly over 60 years old, born and resident in Val San Giacomo. Information was collected using semi-structured interviews and then analysed by indices such as Ethnophytonomic Index (EPI), Ethnobotanicity Index (EI), relative frequency of citation (RFC), use value (UV), relative importance (RI) and factor informant consensus (FIC). Information on 66 plants belonging to 35 families (Asteraceae, Rosaceae and Lamiaceae, mainly) was gathered. The preference ranking placed Achillea moschata Wulfen at first place, both for the citation number and for RFC and UV. Arnica montana L., Thymus pulegioides L. and Artemisia genipi Stechm. were also in relevant use. Sixty species were wild and six were cultivated. Leaves, flowers, complete aerial parts and fruits were the plant parts most commonly used for remedy preparation (infusion, especially). The interviewees collected local flora for medicinal purposes, specifically. About 51.5% of the plant species were used to treat gastrointestinal tract of humans as digestive, depurative, appetiser, laxative, astringent and carminative remedies. About 56% of the plants were used in cookery, 24.2% in veterinary field, and 3% as cosmetics. The calculated indices demonstrated that in the studied area there is a small retention of plant knowledge. Only 6.2% of the autochthonous plants proved useful in folk tradition. Despite this, the uses of Sempervivum montanum L., Rhododendron ferrugineum L. and Panicum miliaceum L. were never documented by other ethnobotanical investigations conducted in the alpine area. This survey was an extension of the ethnobotanical investigations performed in the Italian Alps. A study like this, though performed in a small area with a reduced traditional knowledge, could be the basis for subsequent research on the species that are interesting from a phytochemical point of view and on the potential use of their active metabolites. Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.

Medicinal plant use has persisted as a long standing tradition in the Mapuche communities of Southern Argentina and Chile. An ethnobotanical survey was conducted in the rural Curruhuinca community located near the mountain city of San Martin de los Andes, Argentina. Semi-structured interviews were carried out on 22 families in order to examine the present use of medicinal plants and their reputed therapeutic effects. Ecological variables, such as distance to the gathering site and biogeographical origin were also analyzed. Our results showed that the Curruhuinca dwellers cited 89 plant species for medicinal purposes, both of native and exotic origin. They know about 47 native plants, of which they use 40, and they know of 42 exotic medicinal plants of which they use 34. A differential pattern was observed given that only native species, relevant for the traditional Mapuche medicine, were collected at more distant gathering sites. The interviewees mentioned 268 plant usages. Those most frequently reported had therapeutic value for treating digestive ailments (33%), as analgesic/anti-inflammatory (25%) and antitusive (13%). Native species were mainly cited as analgesics, and for gynecological, urinary and "cultural syndrome" effects, whereas exotic species were mainly cited for digestive ailments. The total number of medicinal plants known and used by the interviewees was positively correlated with people's age, indicating that this ancient knowledge tends to disappear in the younger generations.