Review articles

Zhou CH and Yang H-Y:
Some Approaches to the Experimental Manipulation of Reproductive Cells and Protoplasts in Flowering Plants
Acta Biologica Cracoviensia Series Botanica 42/1: 9-20.

Original papers

M�drela-Kuder E:
Mycological Air Pollution in Areas of Intensive Traffic in Cracow
Acta Biologica Cracoviensia Series Botanica 42/1: 21-24.

Ba�i� T and Zahirovi� �
Chloroplast Pigment in Cultivated Black Pine (Pinus nigra Arnold) Needles
Acta Biologica Cracoviensia Series Botanica 42/1: 25-30.

Ro�a J and Ba�i� T:
Fluoride Content and Epicuticular Wax Condition in Pedunculate Oak Tree (Quercus robur L.) Leaves
Acta Biologica Cracoviensia Series Botanica 42/1: 31-36.

Go�aszewska B, Bednarska E, Narbutt O:
Immunocytochemical Localization of Calmodulin in Fertile and Sterile Anther of Allium cepa L.
Acta Biologica Cracoviensia Series Botanica 42/1: 37-46.

Anisimova GM, Shamrov II:
Ovule and Seed Development in Vaccinium myrtillus L. (Ericaceae)
Acta Biologica Cracoviensia Series Botanica 42/1: 47-54.

Kuta E, Przywara L and Ilnicki T:
Heterochromatin in Pleurozium schreberi (Brid.) Mitt.
Acta Biologica Cracoviensia Series Botanica 42/1: 55-60.

Shamrov II:
Translocation Pathways for Metabolites in Developing Ovules of Gentiana cruciata L., Gymnadenia conopsea (L.) R. Br., Gagea stipitata Merklin and Luzula pedemontana Boiss. et Reut.
Acta Biologica Cracoviensia Series Botanica 42/1: 61-78.

Bogunia H and Przywara L:
Effect of Carbohydrates on Callus Induction and Regeneration Ability in Brassica napus L.
Acta Biologica Cracoviensia Series Botanica 42/1: 79-86.

�otocka B, Kopci�ska J, G�recka M, Golinowski W:
Formation and Abortion of Root Nodule Primordia in Lupinus luteus L.
Acta Biologica Cracoviensia Series Botanica 42/1: 87-102.

Joachimiak A and Grabowska-Joachimiak A:
Stomatal Cell Length and Ploidy Level in Four Taxa Belonging to the Phleum Sect. Phleum
Acta Biologica Cracoviensia Series Botanica 42/1: 103-108.

Sobieszcza�ska A:
Analysis of Somatic Chromosome Numbers in Doubled Haploid Lines of Hexaploid Triticale (x Triticosecale Witt.)
Acta Biologica Cracoviensia Series Botanica 42/1: 109-114.

Bach A, �widerski A:
The Effect of Light Quality on Organogenesis of Hyacinthus orientalis L. In Vitro
Acta Biologica Cracoviensia Series Botanica 42/1: 115-120.

Cie�lak E, Ilnicki T and Flis M:
Cytotaxonomical Studies on the Caltha palustris Complex (Ranunculaceae) in Poland. Preliminary Report
Acta Biologica Cracoviensia Series Botanica 42/1: 121-130.

�uszczek D, �wierczy�ska J and Bohdanowicz J:
Polyploidization of Suspensor Basal Cell in Triglochin maritimum L. (Juncaginaceae)
Acta Biologica Cracoviensia Series Botanica 42/1: 131-138.

Konieczny R:
Histological Studies on Callus and Shoot Induction in Culture of Trifolium nigrescens Viv. In Vitro
Acta Biologica Cracoviensia Series Botanica 42/1: 139-144.

Hasterok R and Maluszynska J:
Cytogenetic Analysis of Diploid Brassica Species
Acta Biologica Cracoviensia Series Botanica 42/1: 145-154.

�otocka B, Kopci�ska J, Borucki W, St�pkowski T, �widerska A, Golinowski W, Legocki A:
The Effects of Mutations in nolL and nodZ Genes of Bradyrhizobium sp. WM9 (Lupinus) upon Root Nodule Ultrastructure in Lupinus luteus L.
Acta Biologica Cracoviensia Series Botanica 42/1: 155-163.