1,721,190 research outputs found
Le Nuove segnalazioni floristiche italiane: uno spazio comune per i floristi italiani
Full text linkStoria della rubrica “Segnalazioni Floristiche Italiane” dal 1978 ad oggi e presentazione della relativa sezione nel Notiziario della Società Botanica Italiana
Riscoperta di Bupleurum fruticosum (Apiaceae) in Toscana: specie nativa o aliena naturalizzata?
No full textNew combinations for two hybrids in Salvia subg. Rosmarinus (Lamiaceae)
Full text linkNew combinations for two hybrids in Salvia subg. Rosmarinus (Lamiaceae
Typification of the name Gypsophila gasparrinii (Caryophyllaceae)
No full textThe present contribution is part of an ongoing work promoted by the Italian Botanical Society and aimed to recognize
and typify all the taxa described from Italy and their loci classici, in order to increase their systematic knowledge and to
promote further studies. One of these taxa is Petrorhagia saxifraga (Linnaeus 1753: 413) Link (1829: 235) subsp. gasparrinii (Gussone 1843: 474) Pignatti ex Greuter & Burdet in Greuter & Raus (1984: 44), based on the name Gypsophila gasparrinii Gussone (1843: 474) (Caryophyllaceae Juss.), that appears still untypified
Traditional cytotaxonomic studies: can they still provide a solid basis in plant systematics?
No full textRediscovery of Crocus biflorus var. estriatus (Iridaceae) and its taxonomic characterisation
Full text linkThe Italian endemic Crocus biflorus usually shows white or lilac flowers with three-to-five striking violet
longitudinal stripes on the outer tepals, but unstriped plants were recorded in the past. These plants were
originally described as C. annulatus subvar. estriatus, and subsequently recombined as a variety of C. biflorus.
The rediscovery of such plants in Toscana gave us the opportunity to clarify their systematic relationships,
so that we typified the name, and performed karyological and ITS analyses. These plants share the
same chromosome number (2n = 2x = 8) and ITS sequence with C. biflorus s. str
Spontaneous emission of volatiles from the male flowers of the early-branching angiosperm Amborella trichopoda
No full textMain conclusion: Volatile emissions were detected for the first time in male flowers of the early-branching angiosperm Amborella trichopoda, suggesting a defensive and attractive double role of these compounds. Abstract: Flower volatile emissions were detected for the first time in male flowers of the early-branching angiosperm Amborella trichopoda. A mixture of seven volatile compounds is found in flower buds, with limonene resulting as the most abundant compound (67%). Further five volatiles are found in freshly opened flowers, with limonene contributing to 31.7%, followed by decanal (15.5%) and by ethyl octanoate (10.3%). While monoterpene hydrocarbons dominate in flower buds (73.6%), their emission in freshly opened flowers is reduced to 41.1%, while non-terpene derivatives are the most abundant (47.1%) chemical class. These compounds, emitted in low amounts, are possibly linked to pollen, which is considered the only reward offered for insect-pollination in this species
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