Kützing, Friedrich Traugott (1807-1893)
ALGARUM AQUAE DULCIS GERMANICARUM, ....
Decades I-XVI, numbers 1-160. Halis Saxonum, 1833-1836.

	Decade	Numbers	Year of Publication
	I	1-10	1833
	II	11-20	1833
	III	21-30	1833
	IV	31-40	1833
	V	41-50	1833
	VI	51-60	1833
	VII	61-70	1833
	VIII	71-80	1833
	IX	81-90	1834
	X	91-100	1834
	XI	101-110	1834
	XII	111-120	1834
	XIII	121-130	1836
	XIV	131-140	1836
	XV	141-150	1836
	XV1	151-160	1836

Specimens are dried on paper or glass. Index information was derived from herbarium sheet labels and the printed index accompanying each decade of exsiccatae.
In the index species are ordered to correspond to the exsiccatae but are not numbered; the numbers are derived from the exsiccatae sheets.

Bacillaria sigmoidea Nitzsch
Sigmatella nitzschii Kützing
[Germany]; "Im dem Früh-jahre auf stehenden Wässern schwimmenden Schaume."
Kützing 2

Conferva orichalcea Mertens
Melosira orichalcea Kützing
Germany (Erfurt), "In langsam fliessenden Gräben in Thüringen."
Kützing 3

Diatoma fenestratum Lyngbye
Germany (Halle) Halle, "An Conferva glomerata bei Halle."
Kützing 4

Frustulia coffeaeformis C. Agardh
Germany (Erfurt) Bad Tennstedt, "Auf dem Bruckteiche bei Tennstädt in Thüringen schwimmend."
Kützing 11

Achnanthes exilis Kützing
Germany (Erfurt) Bad Tennstedt, "An Conferven bei Tennstädt."
Kützing 12

Gomphonema geminatum C. Agardh
Germany (Erfurt), "In Bächen an Wasserpflanzen in Thüringen."
Kützing 13

Achnanthes intermedia Kützing
Germany ([?]) Berlin, "An einer jungen Ulva intestinalis, bei ich von Berlin erhielt."
Kützing 21

Licmophora minuta C. Agardh
Germany (Halle) Weissenfels, " An verscheidenen Conferven in einen Brunnen bei Weissenfels."
Kützing 23

Exilaria vaucheriae Kützing
Germany (Halle) Weissenfels, "Häufig an Vaucheria clavata in einer Quelle bei Weissenfels."
Kützing 24

Gomphonema pohliaeforme Kützing
Germany (Erfurt) Bad Tennstedt, " An Vaucheria clavata in einem fliessenden Graben bei Tennstädt."
Kützing 25

Diatoma tenue C. Agardh
[Germany], "An Conferva glomerata, [no locality given]"
Kützing 26

Melosira subflexilis Kützing
Germany (Erfurt) Bad Tennstedt, "An einer reissenden Stelle eines Baches bei Tennstädt."
Kützing 27

Frustulia adnata Kützing
Germany (Halle) Halle, "In Conferva fracta parasitica, bei Halle."
Kützing 41

Achnanthes brevipes
Achnanthes intermedia
Achnanthes subsessilis Kützing
Germany (Halle) Rollsdorf, "Ad Zygnema littoreum, ad ripas lacus salsi, bei Rollsdorf im Mansfeldischen."
Kützing 42

Frustulia oblonga Kützing
Germany (Erfurt) Bad Tennstedt, "In fossis inter alias Diatomaceas prope Tennstaedt Thuringiae."
Kützing 71

Frustulia depressa Kützing
Frustulia lanceolata C. Agardh
Germany (Halle) Halle, "Inter Oscillatoriam nigram una cum Frust. lanceolata et aliis Diatomaceis in fossis prope Halam saxonum."
Kützing 72

Frustulia splendens Kützing
Germany ([?]) Leucopetram[?], "In rivulis ad plantas aquaticas prope Leucopetram."
Kützing 73,

Exilaria fasciculata Greville
Germany (Halle) Rollsdorf, " In lacu salso ad Confervam flavescentem prope Rollsdorf, fl. Halens"
Kützing 74

Achnanthes minutissima Kützing [as "Achnanthe minutissima"]
Diatoma crystallinum C. Agardh
Exilaria crystallina Kützing
Germany (Halle) Aschersleben, "Ad Zygnema in fossis stagnantibus una cum Achnanthe minutissima, ad Aschersleben."
Kützing 75

Gomphonema minutissima Greville
Germany (Halle) Rollsdorf, "Ad Confervam flavescentem in lacu salso ad Rollsdorf, fl. Halens."
Kützing 76

Achnanthes brevipes Agardh var. salina
Germany (Halle) Artern, "In rivulo salso 'der Soole' bei Artern Thuringiae."
Kützing 77

Achnanthes brevipes C. Agardh var. fragilariaeformis
Germany (Halle) Artern, "In rivulo salso 'der Sooe' bei Artern Thuringiae."
Kützing 78

Melosira varians C. Agardh
Germany ([?]) Leucopetram[?], "In fossis ad Leucopetram."
Kützing 79

Frustulia subulata Kützing
Germany ([?]) Leucopetram[?], "Ad plantas aquaticas stagnorum, inter alias Diatomeas ... prope Leucopetram. Octob. 1833."
Kützing 81

Frustulia inflata
Frustulia multifasciata Kützing
Frustulia subtilis
Germany (Halle) Bruckdorf, "Inter spumam cum aliis Diatomaceis (Frust. subtili., inflata, etc.) in stagnorum superficie natantem ad Bruckdorf prope Halam Sax."
Kützing 82

Frustulia attenuata Kützing
Frustulia pellucida Kützing
Germany ([?]) Leucopetram[?], "Ad plantas aquaticas prope Leucopetram ...."
Kützing 83

Frustulia acuminata Kützing
Frustulia oblonga Kützing
Germany, "In stagni, ad folia demersa, ...."
Kützing 84

Frustulia fulva
Frustulia maculata Kützing
Frustulia olivacea
Germany (Halle) Eilenburg, "In stagnis ad Potamogetones prope Eilenburg in Saxonia, ...."
Kützing 85

Fragilaria pectinalis Lyngbye
Germany (Halle) Eilenburg, "Ad Potamogetones cum aliis Diatomeis mixta, prope Eilenburg."
Kützing 101

Echinella acharii C. Agardh
Germany (Halle) Eilenburg, "In stagnis ad plantas aquaticas ad Eilenburg. Junio 1834."
Kützing 111

Exilaria curvata Kützing
Germany (Leipzig) Wurzen, "In stagnis, ad Vaucheriam rostellatum, prope Wurzen, in Saxonia. Martio 1834."
Kützing 112

Gomphosphaeria aponina Kützing
Italy (Veneto) Abano Terme, "Inter fila Conf. aponinae ad 'Abano'. Maio. 1835 ...(calore 36^o R.)"
Kützing 151

Gomphonema subramosum C. Agardh
Germany (Halle) Eilenburg.. "Ad Confervas in fossis stagnantibus ad Eilenburg. Junio. 1834."
Kützing 152

Brachysira aponina Kützing
Italy (Veneto) Abano Terme, "Inter stratum Merizoinyriae aponinae. ... (calore 30^o R.)"
Kützing 153