Abstract: Baltisberger, M.: Cytological investigations of some plants from Turkey. - Willdenowia 21: 225-232. 1991.- ISSN 0511-9618. The chromosome numbers of 13 species of flowering plants from Turkey are reported.The numbers determined for Marrubium astracanicum (2n=20), Ranunculusfibrillosus (2n=28), Rumex olympicus (2n=80) and Stachys byzantina (2n=30) are new, and the number of Stachys thirkei (2n=30) deviates from the indication in literature. The detailed karyotype of Ranunculusfibrillosus is given.

Abstract: Dalgaard, V.: Chromosome studies in flowering plants from Macaronesia II. -Willdenowia 20: 139152. 1991.ISSN 0511-9618. Chromosome numbers are reported for 36 species of flowering plants from the Canary Islands and Madeira. 13 numbers are new or deviate from previous reports. Chromosome numbers of four additional species are reported for the first time from Macaronesia. Notes on taxonomy, distribution and chromosome morphology are provided for many species.The new (Cr deviating counts occurwithin the following genera: Carex, Cirsium, Deschampsia, Echium, Habenaria, Helichrysum, Lotus, Monizia, Ononis, Pericallis, Saxifraga, Vicia.

Abstract: Granville, J.-J. de: Remarks on the montane flora and vegetation types of the Guianas.- Willdenowia 21: 201-213. 1991.- ISSN 0511-9618. Three main types ofreliefabove 500 meters are found in the Guianas,i.e. the sandstone tabletop mountains of the Guayana Highland, the lateritic and bauxitic plateaus on basic volcanic rocks, and the granitic outcrops and other rugged reliefs on a cqvtalline base.For each type a list ofmountains with their . altitude and geographic position is presented.The most prominent features ofthe ilora andvegetation of these three areas are given.

Abstract: Sesmen, 0. & Leblebici, E.: Aquatic flora of Thrace (Turkey). Willdenowia 20: 53-66. 1991. ISSN 0511-6918. The flora of the lakes and marshy places inThrace (Turkey: A1,A2 (E)) has been investigated and a total of 180 taxa belonging to 48 families has been recorded. Out of these 31 taxa are recorded for the first time from these areas. The aquatic flora and vegetation of West Anatolia (squares B1, B2, B3, C1, C2, C3 according to the grid squares system of Davis) have recently been investigated in detail by SeSmen & Leblebici (1984). The aquatic flora and vegetation of Thrace have been studied during the years of 1984-1987. The plants collected from this area, covering the squares A1, A2 (E), are given in this article. The map of the area under investigation is shown on Fig. 1. Twenty lakes and marshy habitats were studied and 180 taxa belonging to 48 families collected. Out of these, 31 taxa are recorded for the first time from these areas. Davis (1965-1985, 1975), Donner (1985, 1987) and Huber-Morath (1987, 1988) have been used as standard works of reference; the sequence of taxa within a given family is followed as given by Davis (1965-85). The following abbrevations are used: s.l. = sea level, G = Gol (Lake), K= K6y (Village), number in italics = collection number. Voucher specimens are kept at EGE, duplicates in B. Pt e r i d o p by t a Equisetales Equisetaceae Equisetumfluviatile L. -Al (E) Edirne: Kl-2 irrigation canal, c. 40 m, 27. 6. 1984, 4606. -Bywater. New record for square. Filiciaks Sa lv in ia cea e Salvinia natans (L.) All. Al (E) Edirne: Buyukdolluk K., Golbaba G., c. 40 m, 26.7. 1984,4544; Ipsala, Pamuksu G., c. 5 m, 25. 7. 1984, 5082. Ksrklareli: Igneada, Erikli G., s.l., 29. 6. 1984, 5721. A2 (E) Istanbul: Terkos G., c. 5 m, 30.6.1985,5835. Lake shore, in water and aquatic marsh. New record for squares. This content downloaded from 157.55.39.238 on Sat, 02 Jul 2016 05:43:58 UTC All use subject to http://about.jstor.org/terms 54 Seqmen & Leblebici: Aquatic flora of Thrace

Abstract: Aptroot, A.: A conspectus of Normandina (Verrucariaceae, lichenized Ascomycetes). - Willdenowia 21: 263-267. 1991.- ISSN 0511-6918. The genus Normandina, regarded so far as menotypic, is found to accomodate two other lichenized species. The genus is considered to belong to the Verrucariaceae; two new combinations are formed, viz. Normandina erichsenii and N. simodense. The genus Normandina is currently thought to be monotypic, accomodating the cosmopolitan species N. pulchella (Borrer) Nyl. There has been much discussion on the systematic position of this genus, and the opinions vary from Basidiomycetes (Henssen &Jahns 1973) and Fungi Incertae Sedis (Henssen 1976) to Verrucariaceae (Zschacke 1933-34). In the most recent outline of Ascomycetes (Eriksson & Hawksworth 1987) the genus is not treated at all. The main subject of disagreement involves the ascoma, thought to be a parasymbiont by the first authors. In this paper I consider the ascomata to be produced by the lichen known as Normandinapulchella and the holomorph to belong to Verrucariaceae, based on the following observations: The ascomatal structure is in complete accordance with Verrucariaceae (for instance Verrucaria). The paraphyses are vanishing, the hymenial gel is I + pink, the asci are saccate, with a broad, poorly defined apical chamber at the tip and the spores are thin-walled, collapsing and becoming tinted at age. The spores remain clustered and glued to each other in squash preparates, a character also reported by Swinscow(1963).This is anothercharacterthat is also commonlyobserved in Verrucariaceae, for instance in other transversely septate genera as Pocsia and Macentina. The ascoma differs in all these characters from the lectotype species of the genus Sphaerulina to which it is commonly referred as a parasymbiont, Sphaerulina myriadea (DC. ex Fr.) Sacc. (material examined: Petrak, Mycotheca Carpathica 67, NY). This species has no paraphyses at all, the hymenial gel is I-, the asci are cylindrical, with a sharply defined ocular chamber at the tip and the spores are thickwalled, not collapsing or becoming tinted at age. I disagree with Henssen (1976) and others,who regard the ascomata as not belonging to Normandina pulchella, but to a parasymbiont or even a parasite (Hawksworth in litt.), because the following observations are not in accordance with that opinion: 1. The ascocarps are always placed in the morphological centre of the thallus, and in the oldest parts only.

Abstract: Koumpli-Sovantzi, L.: Coastal lagoon flora of NW Peloponnisos (Greece). -Willdenowia 21: 119-129. 1991.- ISSN 0511-9618. This paper lists a total of 201 taxa of vascular plants found in the coastal lagoons in NW Peloponnisos and gives new distributional data. Saccharum spontaneum is reported for the first time for Greece.

Abstract: Lobin,W. & Boyce, P.: Eminium koenenianum (Araceae), a new species from NETurkey and a key to the genus Eminium. -Willdenowia 20: 43-51. 1991.- ISSN 0511-9618. Eminium koenenianum from NE Turkey is described as a species new to science and illustrated. Comments are made regarding possible relationships of the new species. A key to the genus Eminium is provided.