Caryologia, Vol. 52, no. 3/4, 1999

On the cytotaxonomy of the genus Eriospermum Jacq. ex Willd. (Eriospermaceae)

CANIO G. VOSA 1* and PAULINE L. PERRY2

1 Dipartimento di Scienze Botaniche, Universita di Pisa, Via Luca Ghini, 5 - 56126 Pisa, Italy. 2 The Compton Herbarium, Kirste-nbosch

Botanic Garden, Claremont, Cape Town, South Africa.

The meiotic index in hexaploid triticale. Direct and indirect ways to improve it

R. MAICH, B. COSTERO and D. MANERO DE ZUMELZU*

College of Agriculture, Cordoba National University, CC: 509, 5000 Cordoba, Argentine

Karyotypic variation in populations of Ctenomys (Rodentia, Ctenomyidae) from La Pampa Province (Argentina)

E. BRAGGIO1,*, M.D. GIMENEZ1, J.R. CONTRERAS2,4, E. JUSTO3 and C.J. BIDAU1,4

1 Laboratorio de Genetica Evolutiva, Universidad Nacional de Misiones, Felix de Azara 1552, 3300 Posadas, Argentina. 2 Museo

Argentine de Ciencias Naturales, A.Gallardo 470, 1405 Buenos Aires, Argentina; 3 Universidad Nacional de La Pampa, 6300 Santa

Rosa, Argentina; 4 CONICET.

High values of DNA content in the hypotalamic neurons of Lophius piscatorius and Diodon holacanthus (Osteichthyes)

I. BENEDETTI, D. SASSI, G. MESCOLI and G.C. MANICARDI*

Dipartimento di Biologia Animale, Universita di Modena e Reggio Emilia, Via Berengario 14, 41100 Modena, Italia.

Differences between diploid and tetraploid karyotypes of Dactylis glomerata subsp. izcoi

R. LINDNER*, A. GARCI A and P. VELASCO

Mision Biologica de Galicia (CSIC). Apartado de Correos, 28. 36080 Pontevedra, Spain.

Chromosome numbers within some spontaneous populations of 10 Trifolium species in Algeria

R. ISSOLAH * and A. ABDELGUERFIl

INRAA, CRP Mehdi Boualem, Laboratoire des ressources phytogenetiques, BP 37, Baraki 16210, Alger, Algerie. ' INA, Labora-toire

d'amelioration des plantes, El-Harrach 16200, Alger, Algerie.

Localization of the (TTAGGG)n telomeric repeat in the chromosomes of the pufferfish Tetraodon fluviatilis (Hamilton Buchanan) (Osteichthyes)

MACRO MANDRIOLI*, BARBARA CUOGHI, MILENA MARINI and GIAN CARLO MANICARDI

Dipartimento di Biologia Animale, Universita degli Studi di Modena e Reggio Emilia,

Viale Berengario 14, 41100 Modena, Italy.

Karyomorphology of Sinacfoxa (Adoxaceae) and its systematic significance

LIU JIANQUAN I'2;') HO TINGNONG', ZHOU GUOYING' and LU ANMIN2

1 Northwest Plateau Institute of Biology, the Chinese Academy of Sciences, Xining, Qinghai 810001, China. 2 Plant Systematic and

Evolutionary Laboratory, Institute of Botany, the Chinese Academy of Sciences, Xiangshan, Beijing 100093, China.

Chromosome analysis in Psygmorchis pusilla (L.) Dodson & Dressier: the smallest chromosome number known in Orchidaceae

LEONARDO PESSOA FELIX and MARCELO GUERRA *

Departamento de Botanica/CCB, Universidade Federal de Pernambuco, Cidade Universitaria, Recife, Pernambuco, .50732-970, Brazil.

Analysis of polimorphic NORs in Alouatta species (Primates, Atelidae)

EDIVALDO HERCULANO CORREA DE OLIVEIRA', MARGARIDA M.C. DE LIMA1, IVES JOSE SBALQUEIRO2-*

andANAS.F. DASILVA3

1 Departamento de Genetica, Centre de Ciencias Biologicas, Universidade Federal do Para, Belem, Para, Brazil. 2 Departamento de

Genetica, Setor de Ciencias Biologicas, Universidade Federal do Parana, C.P. 19071, 81581-990 Curitiba, Parana., Brazil. 3 Pre-feitura

Municipal de Curitiba, Depto de Zoologicos, Curitiba, PR, Brazil

Patterns of nucleolar activity during spermatogenesis of two triatomines, Panstrongylus megistus and P. herteri

ESTER TARTAROTTI * and MARIA TERClEIA VIEELA DE AZEREDO-OEIVEIRA

Departamento de Biologia, Institute de Biociencias, Eetras e Ciencias Exatas, IBIECE-UNESP, Rua Cristovao Colombo, n° 2265,

Caixa Postal 136, 15054-000, Sao Jose do RioP reto-Sao Paulo, Brasil.

Peculiarities of chromosomal behaviour in the natural autotetraploid Pennisetum orientale L.C. Rich

K.K. KOUL*, RANJNA NAGPAL and ANURADHA SHARMA Botany

Department, Hindu College, Delhi-110007, India.

Meiosis and pollen grain development in Isolepis cernua f. cernua (Cyperaceae)

L.P. DOPCHIZ1'2- and L. POGGIO1'2

1 Institute Fitotecnico de Santa Catalina (FCAF.UNLP), Centra de Investigaciones Geneticas (UNLP-CONICET-CIC) Casilla de

Correo 4-1836, Llavallol, Buenos Aires, Argentina. 2 Departamento de Ciencias Biologicas (FCEN, UBA)- 1428-Buenos Aires, Argentina.

Chromosome association and basic number in Anredera krapovickasii (Basellaceae)

SILVIA ARGIMON 1 ARTURO F. WULFF1 and CECILIA CARMEN XIFREDA2-*

1 Laboratorio de Genetica. Departamento de Ciencias Biologicas. FCEN. UBA. Int. Giiiraldes y Costanera Norte. (1428). Buenos

Aires. e-mail: artulf @bg.fcen.uba.ar

2 Investigador Principal CIC — PBA. Laboratorio de Etnobotanica y Botanica Aplicada. FCN y Museo. UNLP. Paseo del Bosque

(1900). La Plata. Argentina.