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numerous individual trips when both teams split up into smaller expeditions.
All this material was potted in the Gardens and much of it has already been
fixed for cytological study, at the same time that duplicate vouchers were
carefully produced for more detailed identification later. Considerable
numbers of cytological preparations had already been studied before the
American team returned home at the end of August, and the rest will be
worked out during the winter months. The numbers for 115 species,
representing eighty genera and 38 families, have already been submitted
for printing in November in the journal Taxon. These include some of the
more remarkable endemics, whereas most of the endemics of the Julian Alps,
the Karawanken, the Kamnian Alps, and Trnovski Gozd will be studied more
closely during the winter, together with some selected taxa of special
interest.

3. The Endemics

In addition to field observations of the endemics and studies of
their chromosome numbers, we tried to make a complete taxonomical review
of all the Slovenian endemics, and studied them morphologically and
chorologically in great detail. A thorough study of their distribution,
including mapping, is being made by Ernest Mayer. These studies are being
coordinated with similar studies in the central and western Alps by
Professor Cl. Favarger and his students in Neuchatel in Switzerland, the
foremost specialist on the cytotaxonomy of the Alpique flora, and with
studies of endemics and alpine plants from Spain and Italy performed but
not yet published by Åskell and Doris LÖve and on alpine plants from the
arctic regions of Atlantic Europe by the American Principal Investigators
and Dr. Gunvor Knaben. Although all the Slovenian endemics were under
study already this first season, special attention was given the following
complexes and taxa, which may serve as examples.

a. Iris cengialti Ambr. and I. illyrica Tommas. These are taxa of
the eastern Alps and of the coastal mountains of the northern Adriatic.
Although morphologically and geographically distinct, these species have
been known to cross and give rise to apparently fertile hybrids, and on the
basis of morphology some botanists in the past have regarded them as races
only of the much more widespread southeast European Iris pallida Lam.
Our chromosome studies do not contradict this conclusion, since all these
taxa are characterized by the same number (2n = 24) and at least very
similar morphology of chromosomes. However, a more detailed study of