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Phycology Section

1 ANSP to Lara

Change system 1

 



Changes names used by Noma Ann (Cricket) Roberts for her White River diatom counts to those later used by Lara Panayotoff's for her 1996 and 1997 White River Diatometer counts (Taxonomy number 5). There are several differences in names. Lara made comments on each in the Diatom Taxon Correspondence table. Also, Lumping System 3 must be applied to NAR and LP counts if they are to be combined, in addition to changing taxonomic systems. These systems are used to create data files for analyzing long-term trends in assemblage composition.
 
SOURCE TAXONOMY: 1 ANS
 
TARGET TAXONOMY: 5 Panayotoff
 
IS PUBLIC: 0
 
39 TAXON NAMES CHANGED: (Naded Id's)
 
1: FROM: Achnanthes conspicua Mayer (2098)
       TO: Achnanthes pinnata Hustedt (2034)

     REMARK: A conspicua and A pinnata in NAR counts appear to refer to the same taxon


2: FROM: Achnanthes linearis (Smith) Grunow (2024)
       TO: Achnanthes deflexa Reimer (2126)

     REMARK: seems to be mostly A deflexa, but maybe some larger, elliptical A minutissima


3: FROM: Achnanthes microcephala (Kützing) Grunow (2029)
       TO: Achnanthes nollii Bock (2153)

     REMARK: Mis-ID: Checked several slides and determined these to be A nollii


4: FROM: Achnanthes pusilla (Grunow) DeToni (2026)
       TO: Achnanthes deflexa Reimer (2126)

     REMARK: Mis-ID: Checked several slides and determined these to be A deflexa


5: FROM: Amphora ovalis (Kützing) Kützing (7001)
       TO: Amphora ovalis var. affinis (Kützing) Van Heurck ex DeTony (7002)

     REMARK: I don’t see any of this, but I see what I would call A. ovalis v. affinis. (LAP)


6: FROM: Amphora ovalis var. pediculus (Kützing) Van Heurck ex DeTony (7003)
       TO: Amphora ovalis var. affinis (Kützing) Van Heurck ex DeTony (7002)

     REMARK: I see what I would call A. ovalis v. affinis. (LAP)


7: FROM: Cocconeis diminuta Pantocsek (16001)
       TO: Cocconeis cf. neodiminuta Krammer (16020)

     REMARK: Following Krammer's revision of the C. diminuta/thumensis group. Difficult to match description exactly, hence the "cf".


8: FROM: Cocconeis thumensis Mayer (16012)
       TO: Cocconeis cf. neothumensis Krammer (16021)

     REMARK: Following Krammer's revision of the C. diminuta/thumensis group. Difficult to match description exactly, hence the "cf".


9: FROM: Cyclotella glomerata Bachmann (20004)
       TO: Cyclotella pseudostelligera Hustedt (20012)

     REMARK: name only used in early counts; very similar to C pseudostelligera- probably the latter name was used in later counts


10: FROM: Cyclotella kuetzingiana Thwaites (20005)
       TO: Cyclotella comensis Grunow (20023)

     REMARK: WH001885 this is what I had been calling C rossii, but possibly C comensis is a better pick


11: FROM: Cymbella microcephala var. crassa Reimer (23011)
       TO: Cymbella microcephala Grunow (23010)

     REMARK: LAP did not count any C micr v crassa. It is possible that it was missed, or that NAR split inappropriately. Not abundant enough to confirm, so lump with nominate. Lange Bertalot has some recent work on this group (2-vol set 1997 - can't remember the name), and it should be consulted in the future.


12: FROM: Cymbella minuta fo. latens (Krasske) Reimer (23013)
       TO: Cymbella minuta Hilse ex Rabenhorst (23012)

     REMARK: I don't think this has been appropriately split by NAR. While some of these specimens have slightly constricted ends, they are not capitate - with constriction both ventrally and dorsally as described in P&R for fo.latens.


13: FROM: Cymbella sinuata Gregory (23051)
       TO: Reimeria sinuata (Gregory) Kociolek et Stoermer (55002)

     REMARK: New genus name. CWR agrees to use the well accepted new name Reimeria.


14: FROM: Diatoma tenuis Agardh (27005)
       TO: Diatoma tenuis var. elongatum Lyngbye (27006)

     REMARK: probably the same taxon as the one called D. tenuis v elongatum, NAR counted this in a small range of samples characterized by higher abundance of Diatoma tenuis elongatum than other samples. They may all be D moniliforme


15: FROM: Gomphonema grunowii Patrick (37008)
       TO: Gomphonema parvulum (Kützing) Kützing (37010)

     REMARK: WH005645 20 counted: see only G parvulum.


16: FROM: Gomphonema tenellum Kützing (37097)
       TO: Gomphonema minutum (Agardh) Agardh (37095)

     REMARK: More appropriate name (?). From K&L-B NAR did not recognize this taxon in her original counts. For her 1994-95 counts, LAP recounted "G clevei"-abundant slides to split "G clevei" (really G intricatum v pumilum) and G tenellum (now being called G minutum)


17: FROM: Gyrosigma acuminatum (Kützing) Rabenhorst (38001)
       TO: Gyrosigma attenuatum (Kützing) Rabenhorst (38005)

     REMARK: not very common, but I was a ble to find a couple of specimens- I think they are G attenuatum (size, distal raphe ends - see K&LB 2/1 Fig.114:8 vs 114:9)


18: FROM: Gyrosigma spencerii (Smith) Griffith et Henfrey (38004)
       TO: Gyrosigma attenuatum (Kützing) Rabenhorst (38005)

     REMARK: I don't see it on the slides, but I do see G attenuatum.


19: FROM: Navicula biconica Patrick (46007)
       TO: Navicula subminuscula Manguin (46562)

     REMARK: I called this N subminiscula.


20: FROM: Navicula cari Ehrenberg (46169)
       TO: Navicula radiosa var. tenella (Brébisson ex Kützing) Grunow (46058)

     REMARK: not N cari !


21: FROM: Navicula cryptocephala var. exilis Grunow (46255)
       TO: Navicula cryptocephala var. veneta (Kützing) Rabenhorst (46170)

     REMARK: looks like a small form of the what has been called N crypto v veneta - wise to lump them. The cryptocephala/radiosa/cincta/menisculus group has some problems in general. The figures in P&R are ambiguous. K&L-B reworks these quite a bit, it would help to spend some time on this group


22: FROM: Navicula gravistriata Patrick (46353)
       TO: Navicula capitata var. lueneburgensis (Grunow) Patrick (46320)

     REMARK: very small N capitata from with pointy ends, figure in P&R is a little misleading, so I see why NAR may have called it N gravistriata.


23: FROM: Navicula grimmei Krasske (46354)
       TO: Navicula kotschyi Grunow (46269)

     REMARK: N kotschyi is a better name than N grimmei


24: FROM: Navicula luzonensis Hustedt (46370)
       TO: Navicula subminuscula Manguin (46562)

     REMARK: equivalent - N subminiscula is better name


25: FROM: Navicula neoventricosa Hustedt (46377)
       TO: Navicula mutica var. ventricosa (Kützing) Cleve et Grunow (46303)

     REMARK: OK, but N. mutica v ventricosa is a better name


26: FROM: Navicula paucivisitata Patrick (46046)
       TO: Navicula molestiformis Hustedt (46512)

     REMARK: I don't see the distinction between N molestiformis (K&L-B) and N paucivisitata (P&R), so I am using N molestiformis.(LAP)


27: FROM: Navicula radiosa var. parva Wallace (46057)
       TO: Navicula radiosa var. tenella (Brébisson ex Kützing) Grunow (46058)

     REMARK: hard to say for sure, but I think these are v tenella


28: FROM: Navicula schoenfeldii Hustedt (46393)
       TO: Navicula ignota var. anglica Lund (46275)

     REMARK: not N schoenfeldii (they have a stigma!), N ignota v anglica/palustris is debatable.


29: FROM: Navicula subhamulata Grunow (46076)
       TO: Navicula lenzii Hustedt (46842)

     REMARK: difficult to check, but most likely it is N lenzii


30: FROM: Navicula tripunctata var. schizonemoides (Van Heurck) Patrick (46406)
       TO: Navicula menisculus Schumann (46373)

     REMARK: I think these are large forms of what we have been calling N menisculus


31: FROM: Nitzschia angustata (Smith) Grunow (48093)
       TO: Nitzschia angustatula Lange-Bertalot (48229)

     REMARK: same as LAP's N siliqua?? Probably should both be N angustatula


32: FROM: Nitzschia frustulum var. perminuta Grunow (48014)
       TO: Nitzschia inconspicua Grunow (48122)

     REMARK: I call this inconspicua, but the name is certainly debatable


33: FROM: Nitzschia frustulum var. subsalina Hustedt (48147)
       TO: Nitzschia fonticola (Grunow) Grunow (48011)

     REMARK: NAR's N fonticola, N romana, and N frus v subsalina are all the same taxon - N fonticola (in the White River counts only! N frust v subsalina has been used for several different things elsewhere)


34: FROM: Nitzschia romana Grunow (48030)
       TO: Nitzschia fonticola (Grunow) Grunow (48011)

     REMARK: NAR's N fonticola, N romana, and N frus v subsalina are all the same taxon - N fonticola


35: FROM: Nitzschia tropica Hustedt (48045)
       TO: Nitzschia subacicularis Hustedt (48124)

     REMARK: ??could it be N subacicularis?? Checked WH003895


36: FROM: Stephanodiscus minutus Smith (64013)
       TO: Cyclostephanos tholiformis Stoermer, Håkansson et Theriot (19001)

     REMARK: hard to say for sure (low numbers) but two slides I checked I saw C tholiformis that was not in count


37: FROM: Surirella ovata Kützing (65017)
       TO: Surirella minuta Brébisson (65048)

     REMARK: Krammer includes S ovata varities in both S minuta and S brebissonii, but since no S breb were counted, probably ok to include in S minuta


38: FROM: Synedra ulna var. oxyrhynchus (Kützing) Van Heurck (66059)
       TO: Synedra ulna var. contracta Østrup (66058)

     REMARK: the diatoms design as S ulna v contracta, ramesii, and oxyrhyncus all appear to be the same taxon - what I think is S ulna v contracta. K&L-B lump these all into Syndera/Frag ulna, but these seem distinctly different enough to separate from the nominate var.


39: FROM: Synedra ulna var. ramesi (Héribaud) Hustedt (66060)
       TO: Synedra ulna var. contracta Østrup (66058)

     REMARK: the diatoms design as S ulna v contracta, ramesii, and oxyrhyncus all appear to be the same taxon - what I think is S ulna v contracta. K&L-B lump these all into Syndera/Frag ulna, but these seem distinctly different enough to separate from the nominate var.



 

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