Folia Geobotanica et Phytotaxonomica

Misra, M.; Misra, B.

doi: 10.1007/BF02854788pmid: N/A

Energy structure and dynamics of the primary producers of a protected grassland situated at Berhampur, Orissa was investigated. Concentration and standing crop of energy during different months of the year showed a great variation. The system transfer function and efficiency of the grassland were estimated.

Kovář, Pavel

doi: 10.1007/BF02854791pmid: N/A

Hadač, Emil

doi: 10.1007/BF02854792pmid: N/A

The frequency of diploids and polyploids in the flora and plant communities of the Temnosmrečinová dolina valley (High Tatras) and the valley dolina Siedmich prameňov (Belianské Tatry mts.) is discussed in connection with environmental conditions and life forms.

Bělohlávková, Radmila; Fišerová, Daniela

doi: 10.1007/BF02854787pmid: N/A

For tall grasslands of Carpathian avalanche troughs with dominantFestuca carpatica (orPoa nemoralis subsp.montana) a new alliance ofFestucion carpaticae has been established. AssociationFestucetum carpaticae Domin 1925 has been introduced into the alliance, with some new localities supported by phytocenological relevés. A new subass.senecietosum nemorensis was described from a forest zone. The plant community with dominantFestuca carpatica of the Roumanian Carpathian Mts. has been separated into a new associationSeslerio rigidae-Festucetum carpaticae and further, a new association of the same areaSaxifrago heucherifolii-Poetum montanae is described. Synmorfological, synecological, syntaxonomical and synchorological characteristics of the associations are mentioned.

Samek, Věroslav; Krahulec, František

doi: 10.1007/BF02854794pmid: N/A

Gordon Collon, E.; Velasquez, J.

doi: 10.1007/BF02854790pmid: N/A

Sagittaria lancifolia L. a perennial helophyte growing in shallow waters has asexual reproduction by rhizomes and sexual reproduction by achenes. We studied the morphological characteristics of achenes related to its dispersion, some factors affecting its germination and the development stages and growth of seedlings. This species produces many achenes, and disperses through epizoochory and hydrochory. Achenes germinate on light only. 100% germination was obtained at 25°C. Under conditions of inundation the germination period decreases, and the percentage of germination in creases when compared to achenes with or without imbibition. Achenes in anaerobic conditions have reduced germination.

Dostálek, Jiří

doi: 10.1007/BF02854797pmid: N/A

Pyrus×amphigenea Domin exDostálek is described on the basis of field observations and experimental results. The description of juvenile plants is also given. The distribution is believed to be more extensive than is apparent from the available herbarium specimens.

Harmatha, Juraj; Křísa, Bohdan; Kirschner, Jan; Jeník, Jan

doi: 10.1007/BF02854798pmid: N/A

Žárský, Viktor

doi: 10.1007/BF02854789pmid: N/A

Izco, J.; Guitian, J.

doi: 10.1007/BF02854795pmid: N/A

The present paper discusses the nomenclature problem of the nameChaerophyllo-Valerianetum pyrenaiceae: the later homonym appeared as the result of correction of another published name. Possible solutions are put forward.