Table of Contents

A list of 32 li chens new to AblUzzi is reported. The list was made by comparing the identificati ons of the specimens present in the herbarium kept at the Ecological Service of the Provincial Administration of Pescara with the Itali an li chen check-Iist proposed by Ni mis (1993). For each species both geographical and ecological data are included.

The key to Moroccan species of the genus Onopordum is given. The gaps in the geographical distribution of some species can be explained by climatic constraints. Winmaroc, a database for Moroccan fiora, allows to draw distributions (zoom included) and climatograms (in 2 or 3 dimensions) of each species.

Thymus x martinezii Pau ex Martinez is interpreted as a hybrid derived from Thymus vulgaris L. and Thymus moroderi Pau ex Martinez.

Taxonomic revision of the genus Larhyrus in Egypt is carried out. Basic characters of the taxa are given as well as key, synonyms and notes on distribution. SEM features of Ihe seed coal were also considered.

The authors deal with the occurence and distribution, in Pisa district, of some of the mushroom species from the list proposed by the "Gruppo di Lavoro per la Micologia" of the "Società Botanica Italiana". The data were taken from several works, published from 1878 to 1994.

Some new records from S. Italian PeninslIle and from Calabria are reported. Among the species collected, we emphasize the occlIrrence of Fissidens rivularis, a very rare moss in ltaly.

The ecology, morphology and dislribulion of the Italian species of the Bryum bicolor complex is presented, and a key for their identification is given. Bryum gemmilucens Wilcz. & Dem. is a new record for lhe bryoflora or Italy.

Euphorbia maculala L. and Phalaris brachyslachys Link are recorded from Crete

Diploid chromosome numbers (2n ~ 36), reported for Romanian populations of C. banaticum subsp. banaticum, are the first evidence for diploids within this polyploid complex wi th 2x-, 4x-, 7x-, and 8x-cytotypes. The designated lectotype for the name C. grandiflorum var. banalicum (= c. banaticum) has its origin in approximate ly the same area in Romania. The Cerastium banaticum group, centred in the mountains of Italy and the Balkans, is characterised as a disjunct and evidently old assembly of taxa exhibiting morphological affinities to the C. tomentosum and C. arvense_ group.

Tbe finding of Potomogeton gramineus_ L. and P. angustifolius Bercht. et PresI new to the Sicilian vascular flora is reporled al Pian del Leone artificial lake (Filaga, Palelmo).

A new hybrid of the genus Thymus L.. coming from the Alto Tajo area (C. Spain) is here describcd under the proposed name 0f T. x mercadalii G. Maleo & J. M. Pisco, as a resull or a cross belween T. izcoi Rivas-Mart. & al. and T. pulegioides L.

The finding of Acer platanuides L. and _Ulmus glabra Huds. on the Etna Mount is hcre reported. The former is new for the Sicilian dendroflora while the latter, only rccently reported as occurring in Sicily, is new for Etna

The results of more than tcn years of researches on the distribution of Aphyllophoralcs in Sardinia are presentcd. Aleurodiscus ilexicola Bem. & Ryv. and Phellinus juniperinus Bem. & Curreli are recently described as new species; Dendrothele nivosa (Hiihn. & Litsch.) Lemke and D. incrustans (Lemke) Lemke are reported as new European records while more than twenty species are reportcd as new to the Italian mycoflora.

The first record of Bryum fenuisefum [or Italy and southem Europe was made on Etna (Sicily) during a research project on terrestrial bryophyte communities. A morphological description, illustration, ecology and distribution are presented.

A new fossil wood from a lignite quarry in the Amo basin was examined for its terpene contenI. It was characterised by the lack of smell on comparison with two previous samplcs. Analysis has shown several components of diterpenes (abietanc, abietatriene, a-phyllocladanc and simonellite) and only traces of sesquiterpenes in common with thc previous samples. Comparison of ali analysed samples with others from thc fossil forest of Dunarobba shows the occurrence of many shared components especially diterpenes. It is conc!udcd that Taxodioxylon gypsaceum, the first species described from Dunarobba's forest, is probably the species which has given rise to the lignite of the Arno basino

Results of floristic studies at Capo S. Marco, thc southem extremity of the wide Sinis peninsula, are presented. The flora is composed of 400 spontaneous taxa belonging to 63 families and 242 genera and includes species of noteable phytogcographic significancc which have the locus classicus here. The floristic list of CapoS. Marco has been analysed in order to elaborate the life forms, to check the different growth forms of the plants in response to environmcntal factors, to record the phytogeographic elements of alI species so as to show the various geographic components. Ecologic elements for about 50% of the flora characterizing the landscape of Capo S. Marco are considered.

The saprotrophic mycoflora from the leaf litter of five plant species col1ccted at a heavy metal pol1uted site and at a control site, is compared. The composition of the fungal community recorded in tbe soil col1ected at the pol1uted site is reported. Data show a large presence of the genus Penicillium, with the prevailing species P. roscopurpurcum and P. westlingii. On Pistacia lentiscus leaves, collected at the polluted site, a massive presence of Circinotrichum maculiforme has been recorded, suggesting that it could be adapted to grow at high meta l concentratioI1s.

The flora of Monte Arcosu has been studied and 520 taxa have been found. Among these taxa, 492 are species and 28 subspecies belonging to 303 genera and 90 families. The rich variety of plant life in the Monte Arcosu area in comparison with other studied areas of Su1cis is pointed oul. Analysis of the biological spectrum showed that therophytes make up 44% of the total, confirming the full Medi terranean nature of the area. A comparison with the biological spectra of other floras shows similar values, except for the therophytes which seem considerably ]ower, and confirms the prevalence of wood and shmb formations. The chorological spectrum shows dominance of Mediterranean elements (75%), with significant presence of the southwestern Mediterranean component (16%). The number of endemic plants was found to be 9% with dominance of Sardinian-Corsican elements (37%).

Bromus lepidus and B. pseudothominii are reported for the first time from the Iberian Peninsula. A comparative morphological and anatomical study of these c10sely rclatcd species belonging to the Bromus hordeaceus complex has been carricd ou!.

The finding of Dichanthium annulatum (Forssk.) Stapf. In the territory of Adrano (E. Sicily) is reported. Morphological characters and ecology of this species, new IO Europe. are also given and compared with the D. insculptum (A. Rich.) Clayton ones, this latter taxon being native to Sicily.

Micromorphological characters of the nutlet surface has been analysed in 13 species of Salvia belonging to the subgenera Salvia, Sclarea (Moench.) Benth., Calosphace Benth., Leonia (Llav. & !...ex.) Benth. and Covola (Medik.) Brig. by scanning electron microscopy. The results suggest that nutlet sculpturing is useful as a taxonomic charactcr for subgeneric delimitation.

The difficulties in the subdivision of infrageneric taxa in Iris L. have created great taxonomic problems even at the level of nomenclatural and taxonomic synonymies. The eases of I. suaveolens (N. Terrace.) N. Terrac. ex A. Terracc. and I. biflora L. sensu Petagna are here analysed. Then, I. relicta Colas. nom. nov. and I. bicapitata sp. nov. are proposed.

Centaurea poeltiana, a new yellow-flowered species of Centaurea sect. Phalolepis_ from Aspromonte (S. Calabria) is described.

This is the sixth instalment of a seri es of reports of chromosome numbers from Mediterranean area , peri-Alpine communities and the Atlantic Islands, in French or English language. It comprises contributions on 93 taxa: Mesembryanthemum, Capparis, Arthrocnemum, Atrip/ex, Beta, Chenopodium, Af?rostemma, Cerastium, Corrif?io/a, Dianrhus, Herniaria, Holosteum, Minuartia, Moenchia, Paronychia, Po/ycarpon, Sclf?ina , Sperf?u/a, Velezia, Emex, PO/Yf?onum, Rumex, Montia, Parietaria and Urtica from Greece, Petrorhaf?ia, Sperf?u/aria and Stellaria from Greece and Crete, Arenaria and Si/ene from Greece, Crete and Turkey, by H. Runemark (Nos. 590-678); Stachys from Sicily and Italy, by L. Falciani & G. Fiorini (Nos. 679-682); Gonocytisus from Turkey, by T. Cusma Yelari & L. Feoli Chiapel1a (No. 683); Leopo/dia, Muscari, Dipcadi, Gaf?ea, SciI/a and Ornithof?a/um from Morocco, by G. Corsi, F. Garbari & A. Ghelardi (Nos. 684-691); Dianthus, Limonium, Medicaf?o, Prosopis, Sa/via and Sideritis from Cyprus, by Ch. Oberprieler & R. Yogt (Nos. 692-699); Sa/via from Italy and Sardinia, by F. Del Carratore & F. Garbari (Nos. 700-704); Emex, Biscutella, Eruca, Medicaf?o, Ononis, Euphorbia, Centaurea, AI/ium, Dipcadi, SciI/a and Ornithof?a/um from Turkey, by G. Fiorini & M. Raffaelli (Nos. 705-715); Anf?elica, Astrantia, Bunium, Bup/eurum, Carum, Chaerophyl/um, Cnidiocarpa, Cymbocarpum, E/eutherospermum, Erynf?ium, Feruhlf?o, Gonf?ylosciadium, lIeracleum, Hydrocoty/e, johrcniopsis,...