Jürgens, Algae Aquaticae

Jürgens, Georg Heinrich Bernhard (1771-1846)
ALGAE AQUATICAE, QUAS IN LITTORA MARIS DYNASTIUM JEVERANAM ET FRISIAN ORIENTALEM ALLUENTIS REJECTAS, ET IN HARUM AQUIS HABITANTES ....
Decades I-XX, 200 numbers. Jever (Mettcker), 1816-1824.
Specimens are dried on paper or mica. Index information was derived from herbarium sheet labels, the decades' tables of contents and two published papers:
Jürgens, G. H. B. Beitrag zur Flora der Insel Wangeroge und Norderney and zur Flora Deutschlands. Flora 18(33):513-525 (1835), &
Reinbold, Th. Revision of Jürgens' Algae Aquaticae. I. Die Algen des Meeres- und des Brackwassers. Nuova Notarisia, ser. 4, [1893]:192-200 (1893).
Decade XX was apparently never published.

Berkeleya rutilans [fide Reinbold, 1893]
Conferva foetida Dillwyn
Conferva rutilans Trentepohl
Schizonema rutilans
Germany (Niedersachsen) Jever, Jade Bay
Germany (Niedersachsen) Norderney, Wangerooge, "Culmis stramineis ad haerens deprehenditur ultra aggrerem prope ad loum in Dynastia Jeverensis Tengshausen appelatum, adque ad canoleum in Frisia orientali, qui dicitur Frideriken schleuse, etiam que invadis recessum prope Daunsfeld."
Jürgens decade 1, number 3

Conferva hiemalis
Conferva inflexa Roth
Conferva moniliformis O.F. Muller
Melosira moniliformis C. Agardh
Melosira nummuloides (Dillwyn) C. Agardh [fide Reinbold, 1893]
Germany (Niedersachsen), "Rarissime conspicitur planta calamis Poae maritimae mense Oct. et Novembris et quidem in aquis mari recendenti non subsequentibus (Balgen) ad coemeterium Banterianum et in canaliculis illius telluris, recens mari ereptae (Groden)."
Jürgens decade 1, number 7

Berkeleya rutilans var. lutescens (Kützing) Grunow [fide Reinbold, 1893]
Conferva majuscula
Conferva rutilans
Conferva rutilans Trentepohl
Oscillatoria majuscula
Schizonema majuscula
Germany (Niedersachsen) Wangerooge, "Haec planta occurrit mixta cim conferva rutilanti (Dec. 1 n. 3) et cum aliis prvis algis in aquis ultra molem (Watten) ibidemque in (Balgen) exempli causa inter insulam Wangerogam & terram continentem prope breite Leegte, ...."
Jürgens decade 4, number 7

Conferva lineata Dillwyn
Melosira juergensii Agardh [fide Reinbold, 1893]
Germany (Niedersachsen) Norderney, "Observai hanc elegantem confervam in insula Norderney et quidem in profundo quodam cananiculo prope der Batterie."
Jürgens decade 5, number 10

Achnanthes longipes Agardh
Achnanthes brevipes C. Agardh [fide Reinbold, 1893]
Conferva stipitata [J.E. Smith]
Diatoma vexillum Jürgens
Germany (Niedersachsen) Wangerooge, "Haec nitidissima planta, quae primum a Dna. Biddulph et Hill in Anglia, mense Julio 1812, dedecta.et mihi in insula Wangerogae mense Julio 1817 invenire contigit, gregatim in aliis marinis crescit, e. c., in ceramio virgato, conferva diffusa et aliis."
Jürgens decade 6, number 6

Conferva ochracea Roth
Germany (Niedersachsen), "In fossis arenosis, aestate."
Jürgens decade 6, number 7

Conferva taenaeiformis [J.E. Smith]
Diatoma taeniaeforme
Grammatophora marina (Lyngbye) Kützing [fide Reinbold, 1893]
Germany (Niedersachsen) Jahdae; "Observai has plantas parasiticas in Ceramio virgato in Jahdae fluvio ad oras terrae Jeverensis prope Bantersiel et Mariensiel. Mense Mayo."
Jürgens decade 6, number 8

Diatoma flabellatum Jürgens
Gomphonema paradoxum
Podosphenia communis Heiberg [fide Reinbold, 1893]
Rhipidophora paradoxa (Lyngbye) Kützing [fide Reinbold, 1893]
Germany (Niedersachsen), "Haec minutissima et nitidissima planta crescit in Ceramio virgato cum Conf. Mucor, "
Jürgens decade 7, number 6

Biddulphia pulchella S.F. Gray [fide Reinbold, 1893]
Conferva biddulphia
Conferva biddulphia Dillwyn
Diatoma biddulphianum
Germany (Niedersachsen) Wangerooge, "Aliis Algis maritimis v. c. Ceramio violaceo adhaerens, haec Conferva a mari ad insulam Wangerogae ejicitur."
Jürgens decade 10, number 9

Conferva striatula [J.E. Smith]
Diatoma arcuatum
Grammonema striatulum (Lyngbye) C. Agardh [fide Reinbold, 1893]
Striatella arcuata
Germany (Niedersachsen) Norderney
Germany (Niedersachsen) Wangerooge, "Ad littora insularum Norderney et Wangeroge in ceramio violaceo et virgato parasitice radicans."
Jürgens decade 11, number 7

Diatoma fasciculata
Diatoma fasciculatum Agardh
Echinella fasciculata Lyngbye
Synedra fasciculata (C. Agardh) Kützing [fide Reinbold, 1893]
Germany (Niedersachsen) Jever, "Ad littora dynastiae Jeverensis in ceramio virgato habitat."
Jürgens decade 11, number 8

Conferva implexa [cf.]
Conferva orichalcea Mertens
Germany (Niedersachsen) Norderney, "Quo in itinere jucundissimo mihique utilissimo haec nova et perpulchra Alga in insula Norderney nobis sese obtulit."
Jürgens decade 12, number 2

Diatoma fenestratum Lyngbye
Germany (Niedersachsen) Wangerooge, "In Insula Wangeroge hanc Algam in Ulva compressa parasitice insidentem mens. Aug inveni."
Jürgens decade 12, number 8

Conferva obliquata [J.E. Smith]
Diatoma obliquata
Diatoma obliquatum Lyngbye
Isthmia obliquata
Isthmia nervosa Kützing [fide Reinbold, 1893]
Germany (Niedersachsen) Norderney, "Ad littora insulae Nordeney in apicibus Ceramii virgati parasietice insidens."
Jürgens decade 13, number 7

Achnanthes brevipes C. Agardh [fide Reinbold, 1893]
Achnanthes longipes
Conferva armillaris
Echinella stipitata Lyngbye
Germany (Niedersachsen) Friesische Inseln, "Ad littora insularum Frisicarum ceramio virgato et confervis insidentem hanc Algam inveni."
Jürgens decade 13, number 8

Diatoma lyngbyei
Diatoma tenue [var.] marium Lyngbye
Grammatophora marina (Lyngbye) Kützing [fide Reinbold, 1893]
Germany (Niedersachsen) Norderney
Germany (Niedersachsen) Wangerooge, "Ad littora maris septentrionalis in insulis Norderney et Wangeroge Ceramio virgato insidentem observari hanc Algam."
Jürgens decade 14, number 9

Frustulia juergensii
Echinella obtusa Lyngbye
Germany (Niedersachsen) Jever, "In fossa prope Jürgenshausen in dynastia Jeverana Ceramio dichtomo mihi haec Alga accurrebat."
Jürgens decade 14, number 10

Diatoma flabellatum Jürgens
Echinella paradoxa Lyngbye
Gloionema paradoxum
Podosphenia communis Heiberg [fide Reinbold, 1893]
Germany (Niedersachsen), "Gastridio filiformi parasitica insidens. Febr."
Jürgens decade 15, number 9

Conferva pectinalis O.F. Muller
Diatoma pectinalis
Fragilaria pectinalis Lyngbye [as "Fragillaria"]
[See note in Decade 18, number 12 on this Fragilaria pectinalis.]
Germany (Niedersachsen), "Ad plantas aquaticas in fossis."
Jürgens decade 16, number 4

Conferva floccosa C. Agardh
Germany (Niedersachsen), "In fossis, vere."
Jürgens decade 16, number 7

Echinella olivacea Lyngbye
Meridion vernale
Germany (Niedersachsen), "In fossis, culmos plantarum aquaticarum circumdans, vere."
Jürgens decade 16, number 9

Conferva hiemalis Roth [as "hyemalis"]
Melosira varians C. Agardh [fide Reinbold, 1893]
Germany (Niedersachsen) Norderney, "In insula Norderney in fossa prope der Batterie, mense Augusto."
Jürgens decade 17, number 6

Conferva punctalis Dillwyn
Germany (Niedersachsen), "In fossis, semel inveni."
Jürgens decade 19, number 3

Conferva striatula [J.E. Smith]
Fragilaria striatula [as "Fragillaria"]
Grammonema striatulum (Lyngbye) C. Agardh [fide Reinbold, 1893]
Germany (Niedersachsen) Wangerooge, "Ad littora insulae Wangeroge in Fuco vesiculoso parasitica."
Jürgens decade 19, number 6

Diatoma marinum Lyngbye
Grammatophora marina (Lyngbye) Kützing [fide Reinbold, 1893]
Germany (Niedersachsen) Wangerooge, "Ad littora insulae Wangeroge prope der Schlenge orientem versus."
Jürgens decade 19, number 9

Echinella cuneata Lyngbye
Licmophora juergensii
Podosphenia communis Heiberg [fide Reinbold, 1893]
Germany (Niedersachsen) Baltrum
Germany (Niedersachsen) Norderney
Germany (Niedersachsen) Wangerooge, "Ad littora Insularum Wangeroge, Baltrum, Norderney. Fuco Plocamio insidens, rarius."
Jürgens decade 19, number 10

Revised 19 August 2002, R. K. Edgar