Thayensia supplementum I. - Národní park Podyjí

in the closer environs of Znojmo near Trausnitzer Mill and in that of Býčí skála. Even the more eastern
parts of the border zone, the environs of Ječmeniště, Jaroslavice, Hevlín, and Hrabětice, were
probably known to him only partially; especially from the latter two localities he adopted many data
from earlier investigations.
A diligent and ardent amateur botanist, Drlík investigated a number of places omitted by his prede
ces sors and often even unknown to the Brno botanists working at the same time (Figs. 3 and 4).
In this way Drlík recorded the interesting flora of the later destroyed salt marshes near Hodonice,
Stošíkovice na Louce, and Načeratice. He presents a number of data from the forests near Šumná
and Bojanovice, localities rather overlooked by the botanists of that time, as well as from the western
part of the Znojmo region (Zálesí and the forests in the environs of the Vranov Reservoir). His data
from the brook valleys near Znojmo (Gránice, Smoha) are numerous and valuable as well. With his
notes on the well-known localities around Konice, Popice, Havraníky, Hnanice, Hradiště, Načeratice,
along the Dyje River and from Purkrábka, Drlík fills the time lag between the time of Oborny in the
late 19 th century, that of Wolfgang Himmelbaur in 1915–1918, and the late 20 th century when a new
period of intensive floristic investigations began (GRULICH 1997).
Due to his activity shortly before the basic changes of land use took place, and due to his being
focused on habitats outstanding and interesting in floristic respect (salt marshes, waterlogged meadows,
extensively used fields and pastures), Drlík recorded in his „Květena“ a large number of species which
vanished from the Znojmo region and its wider environs shortly thereafter. In the cases of several
species he even presents the last or even the very last dated information on their occurrence in the
Czech Republic (Ceratocephala testiculata, Camelina sativa, Lolium temulentum, Lolium remotum,
Scandix pecten-veneris) or in Moravia (Myosotis discolor, Ornithogalum umbellatum, Turgenia latifolia).
Many other species, documented in the Znojmo region by Drlík, have not been confirmed any
more (e.g. Agrostemma githago, Aster tripolium, Astragalus exscapus, Blysmus compressus, Cardaminopsis
halleri, Cephalanthera longifolia, Conringia ori en ta lis, Crepis foetida subsp. rhoeadifolia,
Gentiana pneumonanthe, Hibiscus trionum, Juncus gerardii, Moneses uniflora, Pedicularis palustris,
Pedicularis sylvatica, Plantago arenaria, Plantago maritima, Pu li ca ria vulgaris, Pyrola chlorantha,
Sideritis montana, Taraxacum bessarabicum, Torilis arvensis, Triglochin palustre, Vaccaria hispanica
subsp. grandiflora, Viola suavis). Some of the significant herbarium items are shown in Figs. 5–16.
A more detailed analysis to evaluate the development of the particular habitats and their flora, based on
a comparison of Drlík’s „Květena Znojemska“ with data provided by his predecessors and followers,
however, is beyond the scope of this short summary, and it will be the topic of a more detailed study.
Directly in the chapter on the „Systematic synopsis of species“, the present co-authors only sup plemen
ted references to the revised herbarium items pertaining to Drlík’s manuscript. From the present
point of view they comment upon some rare, taxonomically complicated, or otherwise interesting plant
species or groups. Also, they supplemented the index of specific taxons used both at the time of origin
of the work (DOSTÁL et al. 1948–1950) and in the present Czech literature (KUBÁT et al. 2002).
Being a private investigator, Drlík evidently had no means by which to consult his identifications
with specialists. This is quite evident from the level of some of his determinations. Apparently, he was
more familiar with some of the groups so that there are few misidentifications in them, whereas in other
groups he committed rudimentary errors (e.g. in determining certain poaceous plants). Nowadays,
Drlík cannot be blamed for such errors. On the contrary, his endeavour at consistently accumulating
herbarium documents is unusually valuable, and it is the confrontation of his collection with the text
of his manuscript that permits the present critical attitude to his legacy.
LITERATURA
BUREŠ P. (1996): Cardamine dentata Schult. in Moravia. – Scr. Fac. Rer. Natur. Univ. Masaryk. Brun.
– Biol., Brno, 24 (1994): 3–9.
ČECH L., ŠUMPICH J., ZABLOUDIL V. et al. (2002): Jihlavsko. – In: MACKOVČIN P., SEDLÁČEK M. [eds.]:
Chrá ně ná území ČR 7. AOPK ČR a EkoCentrum Brno, Praha, 1–528.
ČEŘOVSKÝ J., FERÁKOVÁ V., HOLUB J., MAGLOCKÝ Š., PROCHÁZKA F. (1999): Červená kniha ohrožených
a vzácných druhů rostlin a živočichů ČR a SR. Vol. 5. Vyšší rostliny. – Príroda, Bratislava.
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