Acta Botanica 36. (1991)
1991 / 1-4. szám
ACTA BOTANICA HUNGARICA 36/1-4 1990-91 CONTENTS János Dohy (Göllner) 1905—1990 (Gy. Czimber) ................................................................................... 3 El genero Moacroton Croiz. (Euphorbiaceae) (A. Borhidi) ................................................................. 7 Taxonomic revision of genus Leucocroton (Euphorbiaceae) (A. Borhidi) ..................................... 13 New spontaneous taxa of the genus Clerodendrum Brown ex L. (Verbenaceae) in Cuba (Z. Kereszty) ...................................................................................................................................... 41 Xylotomical examination of lignifying shoots and roots for age determination of grasslands — Fumana procumbens and Euphorbia seguieriana (K. Babos) ................................... 63 Xylotomical examinations of some Venezuelan species of tree belonging to the Caesalpiniaceae, Fabaceae and Mimosaceae families — Caesalpiniaceae II. (K. Babos, L. 3. C. Cumana) ................................................................................................................................ 71 Xylotomical examinations of some Venezuelan species of tree belonging to the families Caesalpiniaceae, Fabaceae and Mimosaceae — Caesalpiniaceae III. — Fabaceae (K. Babos, L. 3. C. Cumana) .......................................................................................................... 87 Comparison of the pollen of various angiospermous taxa and the sporae of ferns for proline concentration and quality (S. Gulyás, G. Pálfi-Oeim) ......................................... 101 Cunninqhamia R-Br. in the pollen spectra of Central Europe (L. Stuchlik, M. Konzalová) .. 113 Light and scanning electron microscope study of Lactuca L. and Cichorium L. pollen. (Compositae: Lactuceae) (M. Z. Hague, M. B. E. Godward) ................................................... 135 Análisis polinico de sedimentos marinos del Occidente de la Isla de la Juventud (Cuba) (Milagros Moncada Ferrera, C. E. Hernandez Fuentes, M. Cabrera Castellanos) ............ 145 Occurrence of Anabaenopsis raciborskii Wolosz. in the pond Tómalom near Sopron, Hungary (Judit Padisák) .................................................................................................................................. 163 Changes in nutrient contents of Termitomyces robustus (Beeli) Heim and Lentinus subnudus Berk during sporophore development (I. 0. Fasidi, M. Kadiri) ......................................... 167 The amin constituents and nutritive value of Podaxis pistillaris (A. S. Khaliel, A. N. Abou-Heilah, M. Y. Kassim) ............................................................................................................. 173 Cultivation and nutritive value of Leucocoprinus birnbaumii (Rita Goval, P. S. Misra, N. A. Pathak) ...................................................................................................................................... 181 The reproductive biology and the degeneration patterns of two lichen populations: Lecanora carpinea and Lecidella elaeochroma (T. Kiss) ....................................................... 187 Changes in nucleic acid level of cell nuclei and hormone content in shoot tips of apple trees treated by paclobutrazol (Cultar) (T. Bubán, M. Nagy) ........................................... 203 Nectary surface of plum varieties (Zsuzsanna Orosz-Kovács, S. Gulyás, F. Kaposvári) ........ 211 Screening of some Indian legumes for seed protein (V. N. Pandey, R. N. Shukla, A. K. Srivastava) .......................................................................................................................................... 219 Botanical identification of Ipomoea tricolor Cav. seed samples from Hungary and thin' layer chromatographic examination of their hallucinogen ergot alkaloids (L. Botz, E. Háhn, L. Gy. Szabó) .................................................................................................................. 229 MAGYAR TUDOMÁNYOS AKADÉMIA " KÖNYVTARA