Last updated
Material studied from the following herbaria:
O KLM BG TROM TRH
C AAU
S UPS GB LD
H OULU TUR KUO JYV TMP
All the studied specimens have been provided by a revision label. Complete label information from all the specimens studied in written to an excel file. A shortened version of the excel file changed to a text file. Please inform P. Uotila of errors in the text, especially of wrong placement into provinces and parishes.
Maps do not show decrease or increase, since dot size reflects number of records (also old ones); frequency changes must be reflected in the distribution texts. Additions are very welcome.Sjælland
Province voucher: TBU 46, Lauenberg (C)
Given as extinct; found only by Schumacher, collected by him after 1801 and before 1830 (Larsen & Pedersen 1960: 61). Note however, that there is no evidence that the taxon has grown in that locality already before 1700, nor that it has been ever resident in Denmark.
Mapped as ROSLXY
General statements
Map in Uhanalaiset kasvimme (Ryttäri & Kettunen 1997: 139). Decreased.
Varsinais-Suomi
Province voucher: 8.8.1990 Aarre Koskinen (H 673451)V. Piikkiö, Finnby
Numerous well spread localities (Atlas), also quite many recent finds (see Ryttäri & Kettunen 1997: Uhanalaiset kasvimme p. 139; recent finds from Uusikaupunki, Raisio, Mietoinen,
Mapped as ROSMPY
Uusimaa
Province voucher: U Myrskylä, 3.8.1991 V. Haikonen 12351 (H 675796)
Numerous well spread localities (Atlas) in 12 parishes (H); relatively recent finds only from Myrskylä and Helsinki; most of the material at least 70 years old.
Mapped as ROSMPY
Satakunta
Province voucher: St Loimaa mlk, Koivusuo, 277.1980 Juha Suominen 8819 (H 561380). Many localities (11 parishes) in the river Kokemäenjoki basin and south of it; mostly old
Mapped as ROSMPY
Etelä-Häme
Province voucher: EH Nokia, Tottijärvi, 25.8.1998 Hannu Kämäräinen 1998-113 (H 733659) Many finds (17 parishes; H) in southern and southwestern part, a few from th east. Most of finds very old. Most recent ones from Tampere and Nokia, which are the northernmost localities.
Mapped as ROSMPY
Etelä-Savo
Province voucher: ES Taipalsaari, oja (ditch), 15.7.1934 M.-L. Rikkonen (H 332344). Pupil’s specimen from the herbarium of a secondary school at Lappeenranta, received 1975. Should be given as a question mark.
Mapped as question mark
Pohjois-Häme
Province voucher: PH Virrat, Tuurala 2.8.1887 Sigurd E. Frosterus, U.S. Nyström (H 548521)
One old locality, where collected once.
Mapped as ROSLXY Resident old indigenous rare slash
Telemark
Province voucher: Telemark, Kragerö, Studsdalstern 3.8.1888 Edv.Ellingsen (O 590326)
Only one locality in Norway, Telemark; collections in (O) from 1881 and 1888.
There is no evidence that the taxon has grown in that locality already before 1700, on the specimen it is said that “introduced probably with hay from Germany”.
Mapped as Ephemeral, small ring with slash (before 1950)
Voucher list provided by Jan Ingar Båtvik:
Studsdalskjærn, Kragerø 11/8 1881. Leg. & det.: Edv. Ellingsen (O 590326. Confirm.: Pertti Uotila FlNo-2005). – ”De fleste Ex. ble funden lige i Kanten af Kjærnet paa blød, næsten hængedyartet Bund; nogle faa i grundt Vand tæt ved de førstnævntes Voxeplads.; [Brev fra Edv. Ellingsen vedlagt arket] Uden tvivl indført med hø fra Tydsland. Juli-Aug. 1881.”
Studsdalskjærn ved Kragerö 11/8 1881. Leg. & det.: Edv. Ellingsen (GB 13270)
Kragerø 1881. Leg. & det.: Edv. Ellingsen (O 590325, Confirm.: Pertti Uotila FlNo-2005)
Kragerø: Studsdalskjern 3/8 1888. Leg. & det.: Edv. Ellingsen Confirm.: Pertti Uotila FlNo-2005
Kragerö 3/8 1888. Leg. & det.: Edv. Ellingsen (O 590324)
Kragerö 2/8 1889. Leg. & det.: Edv. Ellingsen (GB 13269)
A few very old sheets of Elatine alsinastrum, with a reference to Suecia and Bergius, are kept in LE. Possibly they were collected from Finland, Turku, at that time part of Sweden, wherefrom E. alsinastrum was known already since the Linnaean time. However, it might be possible as well that these specimens originate from the present area of Sweden because several other old sheets in LE, as well as the Linnaean collection bear the name Aboa [Turku]; Aboa given in Sp pl., too.