Annalena Cogoni - Academia.edu (original) (raw)
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Papers by Annalena Cogoni
Plants, 2020
Analysis of the seed morphology is a widely used approach in ecological and taxonomic studies. In... more Analysis of the seed morphology is a widely used approach in ecological and taxonomic studies. In this context, intraspecific variability with respect to seed morphology (size, weight, and density) was assessed in two close Epipactis tremolsii Pau. populations sharing the same ecological conditions, except for the soil pollution distinguishing one of them. Larger and heavier seeds were found in plants growing on the heavy metal polluted site, while no differences in seed density were detected between seeds produced by plants growing on the contaminated and the control site. Moreover, seed coats and embryos varying together in their dimensions were described in the control population, while coats varying in their size independently from embryos were described in plants growing on the polluted site. Seeds from the two studied populations significantly differed in several parameters suggesting that intraspecific seed variability occurred in the case study.
Cryptogamie Bryologie, 2009
Seventy-four taxa (59 mosses, 13 hepatics, and 2 anthocerotes) are reported from the National Par... more Seventy-four taxa (59 mosses, 13 hepatics, and 2 anthocerotes) are reported from the National Park of Asinara island, an islet situated at the north west of Sardinia. Besides general comments on phytogeographic and ecological aspects of this catalogue, some taxa, Riccia sommieri, Tortula israelis, Scleropodium cespitans, Enthostodon muhlenbergii are commented. Bryophytes / Ecology / Asinara island / National Park / Sardinia / Italy / Mediterranean
... Tortella nitida (Lindb.) Broth. (Toni): on rock in vegetation with P. lentiscus, Phillyrea sp... more ... Tortella nitida (Lindb.) Broth. (Toni): on rock in vegetation with P. lentiscus, Phillyrea sp. ... Marchantiophyta Chiloscyphus coadunatus (Sw.) JJ Engel et RM Schust var. rivularis (Raddi) Schumacker et Váňa (Chcr): on soil in a rock crevice, Punta La Guardia (32T NL 60440 24858). ...
Scrugli, A., Todde, S. & Cogoni, A.: Ophrys xma/adroxiensis, a new natural hybrid from Sardinia. ... more Scrugli, A., Todde, S. & Cogoni, A.: Ophrys xma/adroxiensis, a new natural hybrid from Sardinia. - Fl. Medit. 2: 95-98. 1992. -ISSN 1120-4052. Ophrys xma/adroxiensis, a new natural hybrid between O. h%serica and O. morisii, is described. The new hybrid was found on the island of S. Antioco (southem Sardinia). Extensive floristic investigations carried out over several years in Sardinia allowed us to establish its orchidologic inventory (Scrugli 1990) and gave us the opportunity to discover new hybrid entities 'which increases the number of those thus far recorded in Sardinia (Scrugli 1990, Scrugli & al. 1992). In the present paper we describe thc natural hybrid between Ophrys Iwloseriea (Burman fil.) Greuter and Ophrys morisii (Martelli) S06, the latter being endemie to Sardinia and Corsica. The new hybrid has been collected in the south-western part of Sardinia, on tbe island of S. Antioco, in a pIace named Maladroxia (from which the epitbet is derived), on soiI covered by debr...
Plants, 2020
Analysis of the seed morphology is a widely used approach in ecological and taxonomic studies. In... more Analysis of the seed morphology is a widely used approach in ecological and taxonomic studies. In this context, intraspecific variability with respect to seed morphology (size, weight, and density) was assessed in two close Epipactis tremolsii Pau. populations sharing the same ecological conditions, except for the soil pollution distinguishing one of them. Larger and heavier seeds were found in plants growing on the heavy metal polluted site, while no differences in seed density were detected between seeds produced by plants growing on the contaminated and the control site. Moreover, seed coats and embryos varying together in their dimensions were described in the control population, while coats varying in their size independently from embryos were described in plants growing on the polluted site. Seeds from the two studied populations significantly differed in several parameters suggesting that intraspecific seed variability occurred in the case study.
Cryptogamie Bryologie, 2009
Seventy-four taxa (59 mosses, 13 hepatics, and 2 anthocerotes) are reported from the National Par... more Seventy-four taxa (59 mosses, 13 hepatics, and 2 anthocerotes) are reported from the National Park of Asinara island, an islet situated at the north west of Sardinia. Besides general comments on phytogeographic and ecological aspects of this catalogue, some taxa, Riccia sommieri, Tortula israelis, Scleropodium cespitans, Enthostodon muhlenbergii are commented. Bryophytes / Ecology / Asinara island / National Park / Sardinia / Italy / Mediterranean
... Tortella nitida (Lindb.) Broth. (Toni): on rock in vegetation with P. lentiscus, Phillyrea sp... more ... Tortella nitida (Lindb.) Broth. (Toni): on rock in vegetation with P. lentiscus, Phillyrea sp. ... Marchantiophyta Chiloscyphus coadunatus (Sw.) JJ Engel et RM Schust var. rivularis (Raddi) Schumacker et Váňa (Chcr): on soil in a rock crevice, Punta La Guardia (32T NL 60440 24858). ...
Scrugli, A., Todde, S. & Cogoni, A.: Ophrys xma/adroxiensis, a new natural hybrid from Sardinia. ... more Scrugli, A., Todde, S. & Cogoni, A.: Ophrys xma/adroxiensis, a new natural hybrid from Sardinia. - Fl. Medit. 2: 95-98. 1992. -ISSN 1120-4052. Ophrys xma/adroxiensis, a new natural hybrid between O. h%serica and O. morisii, is described. The new hybrid was found on the island of S. Antioco (southem Sardinia). Extensive floristic investigations carried out over several years in Sardinia allowed us to establish its orchidologic inventory (Scrugli 1990) and gave us the opportunity to discover new hybrid entities 'which increases the number of those thus far recorded in Sardinia (Scrugli 1990, Scrugli & al. 1992). In the present paper we describe thc natural hybrid between Ophrys Iwloseriea (Burman fil.) Greuter and Ophrys morisii (Martelli) S06, the latter being endemie to Sardinia and Corsica. The new hybrid has been collected in the south-western part of Sardinia, on tbe island of S. Antioco, in a pIace named Maladroxia (from which the epitbet is derived), on soiI covered by debr...