Caryologia, Vol. 53, no. 1, 2000

Genome size in Hedera helix L. - a clarification

RENATE OBERMAYER and JOHANN GREILHUBER

Institute of Botany of the University of Vienna, Rennweg 14, A-1030 Vienna, Austria

Achiasmatic male meiosis in Myrmedobia coleoptrata (Fn.) (Heteroptera, Microphysidae)

SEPPO NOKKALA and SNEJANA GROZEVA

1 Laboratory of Genetics, Department of Biology, University of Turku, FIN - 20014 Turku, Finland. 2 Institute of Zoology, Bulgarian

Academy of Sciences, 1 Tsar Osvoboditel, Sofia, Bulgaria

Penetration and early colonization in basidiosporederived infection on needles of Pinus pinea L. by Cronartium flaccidum (Alb. et Schw.) Wint.

NICOLA LONGO, SIMONETTA POGGIOLESI, BIANCA MARIA NALDINI and GABRIELE TANI

Dipartimento di Biologia Vegetale, Universita di Firenze, via la Pira 4, 50121 Firenze, Italia.

A cytogenetic study of Diplotnystes mesembrinus (Teleostei, Siluriformes, Diplomystidae) with a discussion of chromosome evolution in siluriforms

CLAUDIO OLIVEIRA and ATILA E. GOSZTONYI

1 Departamento de Morfologia, Institute de Biociencias, Universidade Estadual Paulista, campus de Botucatu, 18618-000, Botu-catu,

SP, Brazil. 2 Centra Nacional Patagonico, 9120, Puerto Madryn, Chubut, Argentina.

Chromosome characterization of Trichotnycterus spegazzini (Siluriformes, Trichomycteridae) from three hydrographic basins of the Northwest of Argentina

GLADYS MONASTERIO DE GONZO, ALBERTO S. FENOCCHIO and CRISTINAPASTORI

1 Consejo de Investigacion, Universidad Nacional de Salta, Buenos Aires 177, 4400 Salta. 2 Laboratorio de Citogenetica, Facultad de

Ciencias E.Q. y N., Universidad Nacional de Misiones, Felix de Azara 1552, 3300 Posadas, Argentina.

Pollen tube taxol dependent structures co-assemble with neuronal HMW MAPs (MAP2)

MONICA SCALI, ALESSANDRA MOSCATELLI and MAURO CRESTI

1 Dipartimento di Scienze Ambientali Universita degli Studi di Siena, Via P. A. Mattioli 4, 53100 Siena, Italy. 2 Istituto di Botanica

Universita degli Studi di Messina, Salita Sperone 31, Messina, Italy

Chromosome studies on nine South American species of Vernonia (Vernonieae, Asteraceae)

MASSIMILIANO DEMATTEIS and AVELIANO FERNANDEZ

Institute de Botanica del Nordeste (UNNE-CONICET), Casilla de Correo 209, 3400 Corrientes, Argentina. 1 Facultad de Ciencias

Exactas y Naturales y Agrimensura (UNNE), 2 Miembro de la carrera del Investigador Cientifico del CONICET.

Flavonoids analysis of Vicia species of Narbonensis complex: V. kalakhensis Khatt., Maxt. & Bisby and V. eristalioides Maxt.

ELISABETTA CAMPEOL, SERENA CATALANO, ROBERTO CREMONINI and IVANO MORELLI1.

1 Dipartimento di Chimica Biorganica e Biofarmacia, Universita di Pisa, Italy. 2 Dipartimento di Scienze Botaniche, Universita di Pisa,

Italy.

Cytotaxonomical variability of Chironomus plutnosus L. and C. anthracinus Zett. (Diptera, Chironomidae) from industrial and municipal polluted areas of Finland

PARASKEVA MICHAILOVA and AARNO METTINEN

1 Institute of Zoology, Bulgarian Academy of Sciences, 1 Tzar Osvoboditel boulv., Sofia 1000, Bulgaria. 2 Water and Environment of

Western south Finland PL 51 (Tehtaankatu 26), 08101 Lohja, Finland