Search results for "Helianthemum"
showing 6 items of 6 documents
Up-to-date report on the distribution ofHelianthemum lippii(Cistaceae) in Italy
2015
An up-to-date report on the distribution of Helianthemum lippii in Italy is provided also on the basis of the findings by Lojacono-Pojero in 1889 who reported the existence of a relic population in Sicily (southern Italy), which is now thought to be extinct because of human disturbance. Field excursions permitted to confirm the locus classicus reported by Lojacono-Pojero as the other Sicilian localities that have been reported more recently. Based on a careful analysis of the literature the presence of H. lippii is currently excluded in Calabria and Apulia. The main causes that threaten the habitat of H. lippii in Sicily are pointed out according to IUCN Threats Classification Scheme.
Notulae to the Italian native vascular flora: 5
2018
In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records and confirmations to the Italian administrative regions for taxa in the genera Allium, Arabis, Campanula, Centaurea, Chaerophyllum, Crocus, Dactylis, Dianthus, Festuca, Galanthus, Helianthemum, Lysimachia, Milium, Pteris, and Quercus. Nomenclature and distribution updates, published elsewhere, and corrections are provided as supplementary material.
Híbridos ibéricos de Helianthemum viscarium (Cistaceae)
2012
Helianthemum viscarium se distribuye por el norte de África y sudeste de la Península Ibérica, territorios en los que convive y se cruza con otros táxones de la sección Helianthemum. En la presente contribución se revisa la nomenclatura y taxonomía de los híbridos ibéricos de dicha especie. Por un lado, se propone aplicar el nombre H. x guiraoi Willk. a los ejemplares resultantes del cruzamiento entre H. almeriense subsp. scopulorum y H. viscarium, en un sentido diferente al que fue descrito; este híbrido se lectotipifica y se da a conocer como novedad para Alicante. Además, se discute un curioso enredo nomenclatural que afecta a los híbridos almerienses denominados en ocasiones H. x alican…
Lectotypification of the name Cistus stipulatus, basyonim of Helianthemum stipulatum (Cistaceae)
2015
The typification of the name Cistus stipulatus Forsskål (≡ Helianthemum stipulatum (Forsskål) Christensen) is discussed. The designation of the nomenclatural type is based on an assessment of Forsskål’s original material. The name is lectotypified selecting a specimen from the Herbarium Forsskålii in the National Herbarium Copenhagen at C.
Helianthemum scopulicolum (Cistaceae), a new species from Majorca (Balearic Islands, Spain)
1999
Rupicolous plants coming from a single Balearic locality are described as a new species, Helianthemum scopulicolum. The plant is diploid (2n=20) and belongs to Helianthemum subgenus Helianthemum sect. Helianthemum. On morphological grounds, Helianthemum scopulicolum is related to some members of the H. apenninum aggregate, notably H. apenninum s.l., H. asperum and H. violaceum. However, the new species can be distinguished on the basis of leaves green, shining, glabrescent on the adaxial surface, deciduous short bracts, glabrescent inner sepals lacking long setae and pink-purple flowers.
Sobre las poblaciones de" Helianthemum asperum Lag." (Cistaceae) de la Sierra de Espadán, Castellón
1996
Se describe un nuevo taxon, Helianthemum asperum subsp. willkommii G. Mateo, M.B. Crespo & Aguilella, de las sierras litorales del sur de Castellón y norte de Valencia; sobre el que se aportan datos ecológicos, bioclimáticos, históricos, etc. complementarios.