Alyssum desertorum Stapf (Brassicaceae), new for the Italian flora

The occurrence of Alyssum desertorum, a species belonging to A. sect. Alyssum, is reported for the first time in Italy. It was found in Abruzzo (central Italy) in the territory of National Park of Gran Sasso and Laga mountains and surrounding areas. Morphological similarities with the other taxa recorded in Italy belonging to A. sect. Alyssum are briefly discussed. Information about the typification of the name, habitat, phenology and distribution in Italy are also provided

Four new combinations in Jacobaea Mill. (Asteraceae, Senecioneae) for the European flora

Based on recent advances in the phylogeny of Senecioneae, several genera, including Jacobaea, are currently separated from traditional Senecio. New combinations are here proposed for four European taxa: J. disjuncta (Flatscher, Schneew. & Schönsw.) Galasso & Bartolucci, J. insubrica (Chenevard) Galasso & Bartolucci, J. norica (Flatscher, Schneew. & Schönsw.) Galasso & Bartolucci and J. racemosa subsp. kirghisica (DC.) Galasso & Bartolucci

Allium ducissae (A. subgen. Polyprason, Amaryllidaceae) a New Species from the Central Apennines (Italy)

In this paper, Allium ducissae (the LSID for the name Allium ducissae is: 77254606-1) is described as a new species based on morphological and molecular analyses, and its taxonomic relationships are discussed. It grows in crevices on calcareous rocks, rocky slopes and grassy ledges in the subalpine belt, within two regional protected areas in the Lazio and Abruzzo administrative regions (Central Apennines, Italy). Previously, these populations were attributed to A. strictum, a species described from Siberia, belonging to A. sect. Reticulatobulbosa. The new species is distinct from A. strictum in the morphology of vegetative and reproductive structures. Indeed, it is close to A. palentinum, an endemic species to Cantabrian Mountains (NW Spain). Both molecular and morphological data support the recognition of the Allium populations coming from the Central Apennines as a new species. Allium ducissae can be clearly distinguished from A. palentinum by longer and wider tepals, longer filaments, tooth of inner filament, flower pedicels, spathe appendage, and smaller seeds. Moreover, seed testa micro-sculptures revealed slight differences between A. ducissae and A. palentinum. Chromosome counts showed that A. ducissae is diploid with 2n = 16 chromosomes, as already known for A. palentinum. Molecular analyses support the affiliation of A. ducissae and A. palentinum to A. sect. Falcatifolia, contrary to what is known for the latter species, usually included in A. sect. Daghestanica. Finally, the IUCN assessment for the newly described species is proposed and briefly discussed

Chromosome numbers for the Italian flora: 8

In this contribution, new chromosome data obtained on material collected in Italy are presented. It includes three chromosome counts from two taxa endemic to Southern Italy (Centaurea subtilis and Onobrychis alba subsp. echinata) and one species (Poa ligulata) occurring in Italy with only one recently discovered population

(2662) Proposal to reject the name Hypochaeris urens (Asteraceae)

In order to avoid a disadvantageous nomenclatural change (Art. 56.1 of the ICN) entailed by the strict application of the rules, and to promote nomenclatural stability in the most parsimonious way, we here propose the rejection, under Art. 56, of the name Hypochaeris urens

Nomenclatural novelties for the Euro+Med flora

Today's plant phylogeny more and more deals with ranks from the genus down, so changes in current taxonomy and nomenclature are frequently requested. For this reason, referring to the Euro+Med flora, we take here into account 20 taxa and recover the following forgotten nomenclatural combinations: Bidens atrosanguinea (Hook.) Regel, B. formosa (Bonato) Sch.Bip., B. sulphurea (Cav.) Sch.Bip., and B. tinctoria (Nutt.) Baill. ex Daydon. Moreover we propose the new names Agrostis linkii Banfi, Galasso and Bartolucci, Bidens selenactis Banfi, Galasso and Bartolucci, Bidens sweetiana Banfi, Galasso and Bartolucci, and the new combinations Achnatherum paradoxum (L.) Banfi, Galasso and Bartolucci, A. virescens (Trin.) Banfi, Galasso and Bartolucci, Agrostis linkii Banfi, Galasso and Bartolucci subsp. prostrata (Hack. and Lange) Banfi, Galasso and Bartolucci, Bidens atkinsoniana (Douglas ex Lindl.) Banfi, Galasso and Bartolucci, B. basalis (A.Dietr.) Banfi, Galasso and Bartolucci, B. gladiata (Walter) Banfi, Galasso and Bartolucci, B. lanceolata (L.) Banfi, Galasso and Bartolucci, Calamagrostis arenaria (L.) Roth subsp. arundinacea (Husn.) Banfi, Galasso and Bartolucci, Prunus ×hybrida (Schmidt) Galasso, Banfi and Bartolucci, Solanum aethiopicum L. subsp. anguivi (Lam.) Banfi, Galasso and Bartolucci, S. macrocarpon L. subsp. dasyphyllum (Schumach. and Thonn.) Banfi, Galasso and Bartolucci, S. melongena L. subsp. insanum (L.) Banfi, Galasso and Bartolucci, and Trisetaria argentea (Willd.) Banfi, Galasso and Soldano

Chromosome numbers for the Italian flora: 2.

In this contribution new chromosome numbers for Italian endemic taxa are presented. It includes 13 chromosome counts for Ornithogalum (Asparagaceae), Anthemis, Carduus, Centaurea, Cirsium, Hieracium, Taraxacum (Asteraceae), Asyneuma (Campanulaceae), Knautia (Caprifoliaceae), Gypsophila (Caryophyllaceae), Linum (Linaceae), Helleborus (Ranunculaceae)

Chromosome numbers for the Italian flora: 2.

In this contribution new chromosome numbers for Italian endemic taxa are presented. It includes 13 chromosome counts for Ornithogalum (Asparagaceae), Anthemis, Carduus, Centaurea, Cirsium, Hieracium, Taraxacum (Asteraceae), Asyneuma (Campanulaceae), Knautia (Caprifoliaceae), Gypsophila (Caryophyllaceae), Linum (Linaceae), Helleborus (Ranunculaceae)

Chromosome numbers for the Italian flora: 1.

In this contribution new chromosome data obtained on material collected in Italy are presented. It includes 15 chromosome counts for Carduus, Crepis, Picris, Taraxacum (Asteraceae), Ceratonia, Lathyrus (Fabaceae), Colchicum (Colchicaceae), Fritillaria (Liliaceae), Petrorhagia (Caryophyllaceae), Potentilla (Rosaceae), Quercus (Fagaceae), Reseda (Resedaceae), and Thymus (Lamiaceae)