Morfologia, cariologia e anatomia fogliare nel genere Dittrichia Greuter (Asteraceae)

All five species of the genus Dittrichia were examined as regards their morphology, karyology and anatomy particularly referred to the leaf istology and micromorphology. Two different analytical keys were elaborated basing on morphological features and leaf anatomy and micromorphology characters.

Considerazioni tassonomiche e cariologiche sulle popolazioni siciliane di Sternbergia colchiciflora Waldst. & Kit. (Amaryllidaceae)

A citotaxonomic study on two Sicilian populations of Sternbergia colchiciflora from Madonie and Mt. Etna was carried out. They show marked differences in their morphology and caryology.This suggests to treat them as two distinct taxa, but their correct taxonomic position needs further investigation on other populations of Sternbergia colchiciflora from Mediterranean area

Note tassonomiche su Tillaea alata Viv. (Crassulaceae), nuova per la flora italiana – Inform. Bot. Ital.

Cosentinia vellea (Aiton) Tod. subsp. bivalens (Reichst.) Rivas Mart. et Salvo

Il genere Allium (Alliaceae) in Sicilia

Cytotaxonomic considerations on Allium stamineum Boiss. group (Alliaceae)

Indagine biosistematica su Scilla sensu lato in Italia e generi affini

The taxonomic assessment of the genus Scilla s.l. and its related genera growing in Italy is defined based on literature data and our own morphological, karyological and phenological studies. A cladistic analysis is also performed in order to test taxonomic role of the selected diagnostic characters. Results agree with the most recent revisions and give support for the proposed synoptical key.

Ricerche citotassonomiche su taxa e gruppi critici del genere Allium nell’area mediterranea.

Note citotassonomiche sul genere Thapsia in Italia

Considerazioni filogenetiche e citotassonomiche su Allium sez. Cupanioscordum Cheschm. (Alliaceae)

Taxonomic study on Allium dentiferum Webb & Berth. (Alliaceae) and its relations with allied species from the Mediterranean.

Taxonomy and relationships of Allium dentiferum, a polyploid synanthropic Mediterranean species, are assessed based on morphological, karyological and cladistic analysis. A new species, Allium galileum, closely related to A. dentiferum, is described and illustrated. Both species are large and share very long spathe valves, yellow-greenish tepals and interstaminal teeth. The new species, however, is diploid and linked to natural habitats, and is characterized by the lax and spread inflorescence, purple stamen filaments and the smaller perigon, anthers, ovary and capsule. Relationships among these two species and allied taxa of Allium sect. Codonoprasum, such as A. fuscum, A. pallens, A. pani…