The morphological variability of the Isoetes longissima complex in Italy has been analyzed, on the basis of selected herbarium specimens. Observations were made on spore ornamentation and size, number of leaves per plant and maximum leaf length, velum extension and alae width in the basal portion of leaves. The first count of chromosome number on plants from Italy is also made. On the basis of our observations, the five taxa here considered are attributed to two taxa, treated at the species level as follows: I. longissima (incl. I. velata and I. velata [unranked] sicula), and I. tiguliana (incl. I. dubia). Italian distribution of these species is also given.

Troia, A., Raimondo, F.M., Campisi, P. (2014). The Isoetes longissima complex (Isoetaceae) in Italy: observations on the morphology of spores and leaves, and taxonomic implications. PHYTOTAXA, 174(3), 149-156 [http://dx.doi.org/10.11646/phytotaxa.174.3.3].

The Isoetes longissima complex (Isoetaceae) in Italy: observations on the morphology of spores and leaves, and taxonomic implications

TROIA, Angelo;RAIMONDO, Francesco Maria;CAMPISI, Patrizia
2014-01-01

Abstract

The morphological variability of the Isoetes longissima complex in Italy has been analyzed, on the basis of selected herbarium specimens. Observations were made on spore ornamentation and size, number of leaves per plant and maximum leaf length, velum extension and alae width in the basal portion of leaves. The first count of chromosome number on plants from Italy is also made. On the basis of our observations, the five taxa here considered are attributed to two taxa, treated at the species level as follows: I. longissima (incl. I. velata and I. velata [unranked] sicula), and I. tiguliana (incl. I. dubia). Italian distribution of these species is also given.
Settore BIO/02 - Botanica Sistematica
Settore BIO/03 - Botanica Ambientale E Applicata
Settore BIO/01 - Botanica Generale
Troia, A., Raimondo, F.M., Campisi, P. (2014). The Isoetes longissima complex (Isoetaceae) in Italy: observations on the morphology of spores and leaves, and taxonomic implications. PHYTOTAXA, 174(3), 149-156 [http://dx.doi.org/10.11646/phytotaxa.174.3.3].
File in questo prodotto:
File Dimensione Formato  
2014 Troia et al PHYTOTAXA Isoetes longissima.pdf

Solo gestori archvio

Descrizione: articolo
Dimensione 2.14 MB
Formato Adobe PDF
2.14 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/96577
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 3
social impact