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Einleitenden Bemerkungen zur systematischen Stellung von Hieracium wiesbaurianum Uechtr. folgt eine Charakterisierung dieser Art, wobei auch Unterscheidungsmerkmale nachstverwandter Arten angegeben werden. Lokalverbreitung im hercynischen Raum und Gesamtverbreitung werden durch Karten veranschaulicht. H. wiesbaurianum ist eine demontane und ozeanische Art, die in Thuringen ausschlieslich in Sesleria voria-reichen Pflanzengesellschaften beobachtet wurde. Ihr soziologisches und chorologisches Verhalten wird mit einigen dealpinen Arten sowie mit den nachsten Verwandten (H. bifidum Kit. und H. pallidum Biv.) verglichen. Remarks about the taxonomic position and a morphological description of Hieracium wiesbaurianum Uechtr. are given. Thereby the characters are presented to distinghuish the allied species. Maps illustrate the distribution in central Germany and the general distribution. H. wiesbaurianum is a demontane and oceanic species. It was observed in Thuringia exclusively in plant communities, in which Sesleria varia occurs abundantly. Its sociological and chorological behaviour pattern is compared with its nearest allies (H. bifidum Kit. and H. pallidum Biv.) and with some dealpine species of other genera.

After giving some considerations on the genus Lophodermium, four interesting graminicolous species are illustrated. New hosts, respectively Festuca Halleri All. for Lophodermium Sesleriae Hil. and Triticum durum Desf. for L. Tritici (Roum.) Weese are indicated; the diagnosis of L. alpinum (Rehm) is emended and the new species L. Castellanii is described on Sesleria disticha Pers. and S. caerulea Ard.

In the described experiments the interaction of 460 grass species with a mildew population obtained from Dactylis glomerata L. 'Motterwitzer' was examined. 420 species remained free of symptoms, while 40 species were susceptible. The most susceptible ones were Dactylis aschersoniana Graebner, Dactylis glomerata L., Dactylis glomerata spp. aschersoniana (Graebn.) Thell., and Dactylis polygama Horvat, but all showed differences in their behaviour. The unexpectedly low susceptibility of Dactylis woronowii Ovcz. should be examined again. Three grass species Bouteloua hirsuta Lag., Danthonia provinzialis DC., and Sesleria latifolia (Adam) Degen were also highly susceptible to cocksfoot mildew, while on wild grasses of the species Agropyron, Bromus, Festuca, Mibora, Poa, and Sesleria only few symptoms could be seen. Among cereals only barley could be infected by cocksfoot mildew. Not only in the wild form of Dactylis glomerata L. but also in the cultivated variety 'Motterwitzer', above 10% were found to be free from infection. Therefore the breeding of resistant varieties of Dactylis glomerata L. seems to be feasible.

Sesleria ovata (HOPPE)KERN .est une espèce répandue dans la région du Brenner, s'etendant de la jusqu'au Hoch Obir, aux Dolomiteset et'a a laValte line.Elle existe pourtant, en tres petite quantite, au col de l'Iseran(haute Tarentaise) oiu elle a ete trouvee en I923, et pres de la Grande Sassiere,a TODO une distance de plus de 300 km de la Valteline. Calciphile dans les Kara wanken, elle se presente aucontraire,enSavoie,auauvoisinagedu,,c ur v u TODO TODO I e t um, Published as part of Le Brun, P., 1962, Tour d'Horizon floristique sur les alpes françaises, pp. 55-70 in Vegetatio 11 (1) on page 60, DOI: 10.1007/bf00301299, http://zenodo.org/record/6928804

Eleven sites were examined on limestone and non-calcareous drift. Dominant species and trellis diagram analysis of presence and absence data for all the 200 species recorded were not very useful for classifying sites according to their faunal similarities. Various groupings of the sites were made on the basis of differential species, and the principal groups were: Zygoribatula exelis-Eremeus oblongus group of mosses (except Grimmia) on limestone boulders; Rhodacarus roseus-Oppia sp. nr. obsoleta group of mulllike rendzinas under Sesleria on limestone cliff ledges, a rendzina-like soil under limestone grassland and a brown earth of low base status under Festuca-Agrostis on shallow drift; Platynothrus peltifer-Liochthonius perpusillus group of gleyed podsolic brown earths under Nardus on deep drift. In addition, the mull-like rendzinas could be characterised by the high frequency and dominance of Oppia translamellata. A small number of samples from Grimmia moss and lichens on limestone boulders indicated that the collembolan Anurophorus laricis may be characteristic of these sites. Pe3ioMe H4ccJIeaoBaJiacb 4 ayHa II MecToo6HTaHHrl Ha H3BeCTHHKax H HeH3BeCTHRKOBbIX nopojgax. Ha OCHOBe 3aKOHOMepHOCTH pacripegenieHH51 HaAgeHHbIX TaM 200 BHJROB 6ecno3BOHo0HbIX ,aaeTcq 4aYHHCTWqeCKaq xapaKTepucTHna KawKaOrO MeCToo6HTaHHSI. no T1pH3HaKy HaJILHS1 HuH OTCYTCTBHSI onpegeuieHHb6IX BKAOB y~aCTKH pa3JaeJIeHbI Ha ciieApyiowe rpynnbI: Zygoribatula exelis Eremeus oblongus, xapaKTepHbie giJ1R MXOB (HcKnio'as Grimmia) Ha H3BeCTHIKOBbIX BaJIyHax. Rhodacarus roseus Oppia sp. nr. obsoleta xapaKTepHbie jiq MyJIJIellogo6Hb6X peH93HH flOA Sesleria Ha H3BeCTHHKOBbIX yTecax. PeHA3HHonoAo6HbIe HOIBbI nog JIyrOBOrI paCTHTeJIbHOCTbIO H KaIUTaHOBbIe HOHBMI C HHU3KHM co~epxcaH~em OCHOBaHi4ri noj Festuca-Agrostis Ha MeJIKHX HaHocax. Platynothrus peltifer-Liochthonius perpusillus, xapaKTepHbie asii riieesbIx OHA3oJIeHHbIX KaSUTaHOBbTX nOqB nog Nardus Ha rny6oKHx HaHocax. B aOnOJIHeHHHe K 3TOMy Myj1JIenoXqo6HbIe peHA34H]BI xapaKTePH3yI0TCI 'IaCTOA BCTpeMaeMOCTbO H JAOMHHHpOBaHHlM Oppia translamellata. He6oJbIIuIoe KOJIH'eCTBO c6opoB flOr MXaMH Grimmia Hi nHmaIRHHKaMH Ha H43BeCTHIKOB],IX BanyHax aaeT OCHOBaHHe riOJIaraTb, 'ITO AJ1n 3THX y'aCTKOB xapaKTepHbI KoJijieM6oJIbi Anurophorus laricis. Manuscript accepted September 1966.