Kamari, G., Blanche, C. & Siljak-Yakovlev, S. (eds): Mediterranean chromosome number reports – 22. — Fl. Medit. 22: 211-232. 2012. — ISSN: 1120-4052 printed, 2240-4538 online. This is the twenty-two of a series of reports of chromosomes numbers from Mediterranean area, peri-Alpine communities and the Atlantic Islands, in English or French language. It comprises contributions on 15 taxa: Cakile, Chrithmum, Dorycnium, Inula, Reichardia and Pancratium from Greece by E. Liveri, P. Bareka & G. Kamari (Nos 1753-1758); Pimpinella from Turkey by

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Mediterranean chromosome number reports - 22

Chromosome numbers are reported for 44 Moroccan Compositae. Eight taxa have not previously been investigated cytologically or have chromosome numbers differing from previous reports. Counts for 13 additional taxa are the first reports for North Africa.

Chromosome Numbers of North African Phanerogams. II

In Hordeum marinum two subspecies are recognized, viz. ssp. marinum, 2x and ssp. gussoneanum, 2x and 4x. The tetraploid cytotype has a more eastern distribution in the Mediterranean area than the two diploids. Crosses and meiotic data in hybrids revealed that the three cytotypes are closely related. The tetraploid ssp. gussoneanum behaves like a true alloploid but evidently has a very strong diploidizing mechanism, which prevents recombination between the genomes. The isoenzyme pattern shows differences between the cytotypes and a clinal differentiation in ssp. marinum.

Variation and differentiation in Hordeum marinum (Poaceae)

Sequence data from the nuclear ribosomal internal transcribed spacer (ITS) region and the chloroplast trnL intron were used to examine the evolutionary relationships and generic delimitations of Br...

Phylogeny of Braya and Neotorularia (Brassicaceae) based on nuclear ribosomal internal transcribed spacer and chloroplast trnL intron sequences

Al-Turki, T. A., Filfilan, S. A. & Mehmood, S. F.: A cytological study of flowering plants from Saudi Arabia. — Willdenowia 30: 339–358. 2000. — ISSN 000-000. The chromosome numbers of 31 taxa belonging to 14 families of angiosperms collected from different regions of Saudi Arabia are reported. These include first chromosome number reports for six species: Anabasis setifera 2n=18, Cleome amblyocarpa 2n=20, Halopeplis perfoliata 2n=18, Lavandula coronopifolia 2n=42, Lycium shawii 2n=24 and Salvia deserti 2n=48. A new basic number and/or a new ploidy level is reported for two species: Asphodelus tenuifolius 2n=4x=52 and Heliotropium lasiocarpum 2n=4x=32. The chromosome numbers of the other 23 species are the first reports from Saudi Arabian populations: Abrus precatorius 2n=22, Alhagi camelorum 2n=16+2B, Amaranthus spinosus 2n=34, Astragalus abyssinicus 2n=16, Bienertia cycloptera 2n=18, Capparis spinosa 2n= 38, Chenopodium album 2n=54, C. ambrosioides 2n=32, C. ficifolium 2n=18, C. glaucum 2n=18, ...

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A cytological study of flowering plants from Saudi Arabia

SUMMARY

The chromosome number of 118 plants belonging to 108 species collected in the wild in Syria has been determined. Notes on some species are given.

E. Kliphuis

Papers

Chromosome numbers in some syrian angiosperms