Estonia
Endemic vascular
plants include the Saaremaa Yellow Rattle Rhinanthus osiliensis (Univ. Tartu)
which is sometimes considered a subspecies of Rhinanthus rumelicus.
A marsh orchid Dactylorhiza
osiliensis (Enno-Kustav Väljal)
was described from Saaremaa in 2005. Endemic hawkweed
microspecies include Hieracium cauri (Euro+Med
Plantbase), Hieracium
acroleucoides (Google Books), and Hieracium
adelum (Euro+Med
Plantbase). Other endemic plants include the
hawthorns Crataegus
osiliensis (Estonian eBiodiversity) and Crataegus
viidumaegica (PGR
Forum) and perhaps a valerian Valeriana estonica (IPNI).
Endemic invertebrates include a braconid wasp Elasmosoma depressum
(p. 6 of Naturalis
pdf file), an aquatic worm Trichodrilus seirei (Fauna Europaea), an ostracod crustacean Ilyodromus
(or Tonnacypris)
estonicus (figs. A & B on p. 5 of Estonian Journal of Earth Sciences pdf file),
and a nematode Rhodolaimus
estonicus (ingentaconnect).