Azolla filiculoides

Family:AZOLLACEAE
Species:Azolla filiculoides Lam.
Common Name:AMERICAN WATERFERN; PACIFIC MOSQUITOFERN
Plant Notes:Within the leaf of Azolla is a cavity housing filaments of the nitrogen-fixing cyanobacterium Anabaena azollae (whose generic-level taxonomy is unclear and sometimes put into the genera Nostoc or Trichormus). The taxonomy of Azolla is convoluted and the appropriate name to use for the Florida native species remains ambiguous. Much of the problem lies in the difficulty of finding easily applicable morphological characters to distinguish species (see Madeira et al. 2013). DNA studies (Reid et al. 2006; Metzgar et al. 2007; Madeira et al. 2013) have found specimens of Azolla from Florida, Ohio, and Wisconsin to be distinct from a specimen from Brazil identified as A. filiculoides. These DNA studies used the name A. caroliniana for the species in the eastern USA. However, Evrard & Van Hove (2004) identifed the type specimen of A. caroliniana as synonymous with A. filiculoides, preferring to recognize two species in the USA as A. cristata and A. filiculoides. The use of A. caroliniana auct. non Willd has also been advocated (Madeira et al. 2013).
Status:Native, OBL (NWPL)
Specimen: View details of USF Herbarium specimens

** Not applicable or data not available.

Classification

Division
Class
Sub Class
Order SALVINIALES
FamilyAZOLLACEAE
Genus Azolla
Species Azolla filiculoides Lam. - AMERICAN WATERFERN; PACIFIC MOSQUITOFERN

Citation

Citation AZOLLA FILICULOIDES Lamarck, Encycl. 1: 343. 1783.
Basionym: **
Type: ARGENTINA: Straits of Magellan, s.d., Commerson s.n. (holotype: P).

** Not applicable or data not available.

Source

CountyHerbariaLiterature Citation (If Applicable)
Alachua FLAS  
Brevard USF  
Broward USF  
Calhoun FSU  
Charlotte FLAS  
Citrus USF  
Collier USF  
DeSoto USF  
Duval FLAS  
Escambia FSU  
Flagler USF  
Franklin FSU  
Gadsden FSU  
Glades USF  
Hamilton FSU  
Hendry USF  
Hernando USF  
Highlands FLAS  
Hillsborough USF  
Indian River USF  
Jefferson FLAS  
Lake USF  
Lee USF  
Leon FLAS  
Manatee USF  
Marion USF  
Martin FLAS  
Miami-Dade FTG  
Nassau FSU  
Okeechobee USF  
Orange FSU  
Osceola FLAS  
Palm Beach FLAS  
Pinellas USF  
Polk USF  
Putnam FLAS  
Sarasota USF  
Seminole FLAS  
St. Lucie USF  
Sumter USF  
Taylor FLAS  
Volusia USF  
Wakulla FSU  
Washington FSU  

Synonyms

– Denotes synonyms that are applicable to the state. Show these synonyms only

SynonymFull CitationBasionymType
Azolla caroliniana Azolla caroliniana Willdenow, Sp. Pl. 5(1): 541. 1810. SOUTH CAROLINA: Without data, Herb. Richard s.n. (holotype: B-W).
Azolla portoricensis Azolla portoricensis Sprengel, Syst. Veg. 4(1): 9. 1827.  

Specimens

Country State County Date Specimen Notes Image
USA Florida Lee Co. 07 Dec 2007 J. M. Kunzer 2244
USA Florida DeSoto Co. 15 Sep 2008 A. R. Franck 948
USA Florida Collier Co. 05 Jun 1966 R. W. Long 1689
USA Florida Polk Co. 5-31 July 1934 O. E. Jennings s.n.
USA Florida Sumter Co. 28 Jun 1984 R. P. Wunderlin 9752
USA Florida Volusia Co. 22 Nov 1975 J. E. Poppleton 576
USA Florida Collier Co. 22 Mar 1971 P. Genelle 518
USA Florida Pinellas Co. 10 Dec 1970 P. Genelle 398
USA Florida Polk Co. 26 Feb 1977 P. Genelle 2648
USA Florida Polk Co. 01 May 1981 D. R. Lindsey 374
USA Florida Lake Co. 23 May 1977 R. F. Daubenmire s.n.
USA Florida Hillsborough Co. 15 Mar 1958 G. R. Cooley 5624
USA Florida Sumter Co. 25 Mar 1958 G. R. Cooley 5791
USA Florida Lake Co. 23 Mar 1959 G. R. Cooley 6396
USA Florida Hillsborough Co. 08 Dec 1953 R. Garrett s.n.
USA Florida Collier Co. 29 Jul 1968 O. K. Lakela 31494
USA Florida Hillsborough Co. 20 Jun 1978 C. G. Wright 10
USA Florida Hillsborough Co. 21 Mar 1979 C. G. Wright 157
USA Florida Collier Co. 21 Nov 1966 O. K. Lakela 30323
USA Florida Pinellas Co. 09 Nov 1975 J. E. Poppleton 710
USA Florida Hillsborough Co. 18 Dec 1960 O. K. Lakela 23689
USA Florida Citrus Co. 25 Feb 1964 O. K. Lakela 26807
USA Florida Collier Co. 05 Feb 1967 R. W. Long 2435
USA Florida 15 Jan 1955 R. K. Godfrey 52790
USA Florida Pinellas Co. 11 Oct 1978 W. Biggs s.n.
USA Florida Hernando Co. 29 Nov 1957 G. R. Cooley 5529
USA Florida Marion Co. 06 Nov 1982 J. D. Skean, Jr. 936
USA Florida Flagler Co. 12 Jun 1978 D. Tabb s.n.
USA Florida Hillsborough Co. 25 Mar 1995 S. Cole LR1116
USA Florida Collier Co. 16 Mar 1983 S. R. Hill 12596
USA Florida Glades Co. 01 Aug 1997 K. A. Bradley 416
USA Florida Sumter Co. 09 Feb 1987 J. H. Scudder 608
USA Florida St. Lucie Co. 31 Mar 2006 T. E. Foster 06-28
USA Florida Manatee Co. 06 Jun 1984 G. Robinson 648
USA Florida Manatee Co. 09 Mar 1995 S. Cole WC0108
USA Florida Sarasota Co. 08 Oct 2007 A. R. Franck 403
USA Florida Sarasota Co. 19 Mar 2006 J. M. Kunzer 1495
USA Florida Brevard Co. 01 Sep 2004 T. MacClendon 294
USA Florida Polk Co. 27 Feb 1966 L. Bell s.n.
USA Florida Volusia Co. 30 Dec 2005 J. M. Kunzer 1255
USA Florida Hendry Co. 09 Oct 2010 A. R. Franck 2322
USA Florida Hillsborough Co. 25 Mar 2010 C. vanHoek HR0340
USA Florida Broward Co. 10 Oct 2014 P. L. Howell 1289
USA Florida Okeechobee Co. 27 Sep 2013 L. Boman 9
USA Florida Indian River Co. 04 Oct 2014 S. Myers 1444
USA Florida Hillsborough Co. 01 Jul 2015 A. Farid 61
USA Georgia McIntosh Co. 15 Apr 1956 W. H. Duncan 19969
USA South Carolina Beaufort Co. 15 Jan 1951 G. R. Cooley 647
USA Louisiana Richland Par. 28 Oct 1975 R. D. Thomas 48089
USA Louisiana Ouachita Par. 15 Nov 1955 J. A. Moore 6545
USA South Carolina Clarendon Co. 26 Jul 2015 R. M. Tryon 907
USA North Carolina Columbus Co. 20 Mar 1960 H. E. Ahles 53162
USA Alabama Conecuh Co. 28 Oct 1975 A. R. Diamond 21135
USA South Carolina McCormick Co. 16 Aug 1998 S. R. Hill 30639
USA South Carolina McCormick Co. 21 Oct 2001 S. R. Hill 34395 Cultivated in Champaign Co. Illinois; 1411 Winding Lane, private residence; 40 degrees 07' 47" N. Lat. 88 degrees 14' 55" W. Long; Elevation at residence 760-770 ft.; Cultivated from Hill 30639.
USA Georgia Decatur Co. 06 Sep 1955 R. F. Thorne 17105
USA South Carolina Bamberg Co. 24 Oct 1957 H. E. Ahles 37768
USA Louisiana Caldwell Par. 20 Mar 1967 R. D. Thomas 1881
USA Louisiana Jefferson Par. 06 Nov 1940 T. C. Sidney s.n.
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