|
|
De wonderlijke geschiedenis van Buxbaumia aphylla uit Zeegse
B.O. van Zanten
|
2-5
|
The peculiar history of Buxbaumia aphylla from Zeegse. In spring 1945 I heard from my father that the very rare and interesting Buxbaumia aphylla was found near Zeegse, a small village next to the village of Oudemolen (northern Drenthe) where my father was a schoolteacher. He did not know who collected it. During this time the second world-war came to an end, but the Germans were still building a system of defence with the help of forced labourers from the cities of The Hague and Leeuwarden, for the defence of the city of Groningen. The German chief inspector of this work was Mr. Förster. He was also very much interested in plants and he proposed that he and I would make a joined excursion to search for plants. We arranged a day. It really was a strange situation. We, a 17 years old anti Nazi boy and a semi-military German inspector of ca. 60 years old and still convinced of German’s victory, went on an excursion to find the elusive Buxbaumia and other plants. During this time the British spitfires flew to and fro shooting at all traffic on the roads and rail and American formations of bombers flew over nearly every day and in the distance we could hear the guns of the allied forces who just launched their offensive for crossing the river Rhine. We did not find the Buxbaumia. Shortly after the Canadian tanks liberated our village and Mr. Förster went in imprisonment to a camp near Hannover. I forgot about the Buxbaumia, but 23 years later the story had a follow-up. In July-August 1968 I was on a collecting trip in Cairns, northern Queensland. Mr. Lennard J. Brass, who participated in several expeditions such as the Archbold expeditions to New Guinea, helped me in every possible way. He was retired and lived on his own in Cairns. He took me often with his car to places where I could collect bryophytes. He was not able to go with me into the forest because of his illness (intestinal cancer) but he waited always very patiently till I was ready with collecting. He sometimes said with a note of pity: “there is nothing else I can do”. He always helped me labelling and drying the plants. All packages where laid on the floor in his house for drying even in his bedroom. “The smell reminds me of my expeditions”, he used to say. One day Len Brass told me that he had met a Dutchman, Willem Rijkens, who was also interested in plants. Mr. Brass made an appointment and it turned out that Mr. Rijkens had lived during the war in Zeegse (next to the village where I lived) and that we had met each other during that time. Of course the Buxbaumia came again to my mind and I asked him if he still had an herbarium of the time he lived in the Netherlands. He had and the Buxbaumia was still in his herbarium. After 23 years the enigma of the Buxbaumia was solved. Shortly after my return to the Netherlands I got the sad news that Len Brass peacefully passed away during his sleep. Herewith I lost a friend.
|
|
|
Notitie over het uitplanten van korstmossen
W.H.J.M. Geraedts & H.G.M. Ketner-Oostra
|
6-8
|
Note on transplanting lichens. Several lichen species were transplanted from the field to a garden, where Calluna sods were grouped around an artificial peat bog. Considerable growth was observed in 3-4 yrs time. Lichen transplantation might be applicable in nature restoration.
|
|
|
Bodembewonende epifytische lichenen op de zuidpunt van Texel
R.H. Haveman
|
9-15
|
Terrestrial epiphytic lichens on the Waddensea island Texel (The Netherlands)
The occurence of usually epiphytically growing lichens, such as Hypogymnia div. spec., Parmelia div. spec., Pseudevernia furfuracea and Evernia prunastri in dune grasslands on the southernmost part of the Waddensea island of Texel is discussed. During the mapping of the vegetation of the Joost Dourleinkazerne, a military training area, the mentioned species were found terrestrially on several locations. In most cases, the vegetation consisted of a transition between marram grass-vegetation (Elymo-Ammophiletum arenarii) and dune-grasslands (Phleo arenarii-Tortuletum ruralis). Although several authors attribute the decline of terrestrially growing ‘epiphytic’ lichens to airial nitrogen deposition, the author argues that changes in landscape dynamics are more likely the cause of this phenomenon.
|
|
|
Wijzigingen ledenlijst BLWG t/m 9 juli 2006
|
15-15
|
|
|
|
Een lichenologisch verslag van het voorjaarsweekend 2006 naar Zeeuws-Vlaanderen en aangrenzend België
D. Van den Broeck, A. Aptroot & D. Jordaens
|
16-25
|
Lichenological report of the spring meeting 2006 in Zeeuws-Vlaanderen and adjacent Belgium. Spring 2006, Dutch and Belgian lichenologists visited parts of Zeeuws-Vlaanderen in the Netherlands and Oost- and West-Vlaanderen in Belgium (maritime and Flemish district). About 206 species were observed. Verrucaria maura is new for Belgium and Buellia disciformis, not known from the Netherlands, is new for the Flemish region of Belgium. In Belgium, the species Arthonia pruinata and Ramalina lacera, believed to be extinct, were rediscovered and Lecanora sinuosa, L. confusa, Parmotrema stuppeum, Parmelina quercina, Physcia clementei and Melanelia exasperata were confirmed. Buellia schaereri was found for the second time in the Netherlands and a nice population of Lempholemma chalazanum proved to be present at the churchyard of Aardenburg. Cladonia phyllophora was present at the Rucphense Heide.
|
|
|
Korstmossen van het BLWG-zomerkamp in Noorwegen in 2002
L.B. Sparrius, J.L. Spier, O. Breuss & M. Vervoort
|
26-33
|
Lichens recorded during the BLWG Summer camp 2002 in Norway. A full list of 462 lichen species is presented as a result of a collecting trip in the Hardangervidda area in southern Norway organized by the BLWG in the summer of 2002. Notes on new and interesting records will be published separately.
|
|
|
Mossen op de Nederlandse hunebedden in 2004/2005
J.G. Colpa & B.O. van Zanten
|
34-50
|
Bryophytes of the Dutch megalithic tombs in 2004/2005. An inventory of the bryophytes of the "hunebeds", megalithic tombs (old graves of c. 2700 B.C.) in the province of Drenthe, The Netherlands, made in 2004/2005 is given. The 53 "hunebeds" consist of granite boulders, but the fissures in several boulders are, from ca. 1930 onwards, repaired with calcareous-rich material. A total of 44 species were found, among them the following acidophilous species: Andreaea rupestris, Grimmia trichophylla, Hedwigia stellata and Racomitrium heterostichum. These species occur in the Netherlands nearly exclusively on the "hunebeds". Andreaea and Hedwigia are strongly in decline, the first species is only left on four "hunebeds" and the latter on only one, both in very small quantities. The situation for Grimmia trichophylla is much better, it occurs on 30 of the 53 "hunebeds" and the length of its stems has even increased. Racomitrium heterostichum is found in two varieties: var. heterostichum and var. obtusum. The occurrence of both varieties (on 19 resp. 7 "hunebeds") is rather stable. We found only very few more or less intermediate forms and consider therefore both taxa as being good varieties. Other acidophilous species which were found earlier on "hunebeds" are: Andreaea rothii (not found after 1967/1968), Racomitrium canescens var. intermedium (only 1938/1939) and R. fasciculare (not found after 2000). We found no evidence that acidophilous species are pushed aside by the calciphilous species growing on and near the repaired fissures. The records of Racomitrium heterostichum var. affine and var. gracilescens, mentioned by Masselink & Zanten (1978) are not accepted by Touw & Rubers (1989) and therefore not considered here. The causes of the decline of Andreaea rupestris and Hediwgia stellata are discussed. It is argued that eutrophication and overshading might be important factors. Overshading enhances the growth of Brachythecium rutabulum and Hypnum cupressiforme and may therefore, in some cases, be a menace for the acidophilous species.
|
|
|
Lophozia capitata (Violet trapmos) met sporenkapsels
C.G. Buter
|
51-52
|
Fruiting Lophozia capitata. In April 2006 a large number of patches of fruiting Lophozia capitata were found in a moist sand pit near Tilburg, province of Noord-Brabant. Perianths and male branches were so intimately mixed that the material appeared to be autoecious. This could however not be ascertained.
|
|
|