Chytrid Taxonomy since 1960 R

A-B C D-E G-L M-O P S-Z

Rhizidium endosporangiatum Karling; Mycopathol. Mycol. Appl. 36: 165–178, figs. 18–37. 1968;
Saprobic; bleached corn leaves & pollen; soil sample; Pitcairn & Niue, OCEANIA

Rhizidium megastomum Sparrow; Mycopathol. Mycol. Appl. 25: 119–143, figs. 19–23. 1965;
Saprobic; snake skin; soil, Oahu, HAWAII, USA 5. 1982; ? nomen nudum

Rhizidium phycophilum Picard Mycologia 101: 696–706. 2009; Mycobank 513127
Saprobic, pollen, chitin (associated with coccoid green alga in culture); soil sample under Antarctic beech, ferns and mosses;
The Gloucester Tops, NEW SOUTH WALES, AUSTRALIA

Rhizidium renifore Karling (IF 4:43) Arch. Mikrobiol. 70: 266–287, fig. 1 A–O. 1970;
Saprobic; purified shrimp and lobster chitin; soil sample; AUCKLAND PROVINCE, NEW ZEALAND

Rhizidium tomiyamanum Konno; J. Jap. Bot. 44: 315–317. figs. A–H. 1969;
Saprobic; Porphyra, pine pollen bait; marine; ? JAPAN

Rhizoclosmatium hyalinum Karling; Sydowia 20: 96–108, figs. 48–59. 1967;
Saprobic; exuviae and chitin bait; water in outdoor tub; U. of Otago, NEW ZEALAND

Rhizoclosmatium sparsum M.J. Powell and Letcher; Mycobank 829907; Phytologia 101: (2) 139–163. 2019
Saprobic; chitin bait; aquatic sample; The University of Alabama, Tuscaloosa, ALABAMA, USA

Rhizoclosmatium persicum Letcher, Longcore & M.J. Powell; MycoBank 829910. Phytologia 101: (2) 139–163. 2019
Saprobic; cellulose; aquatic sample; Lake Nicol spillway; Tuscaloosa County; ALABAMA, USA

Rhizoclosmatium pessaminum Letcher, Longcore & M.J. Powell; MycoBank 829911. Phytologia 101: (2) 139–163. 2019
Saprobic; chitin; Perch Pond, Penobscot County, MAINE, USA

Rhizoclosmatium umbonatum Letcher, Longcore & M.J. Powell; MycoBank 829908. Phytologia 101: (2) 139–163. 2019
Saprobic; chitin and cellulose; acidic lake; Mud Pond, Old Town, Hancock County, MAINE, USA

Rhizoclosmatium umbonatum var. sphaericum Letcher, Longcore & M.J. Powell; MycoBank 829909. Phytologia 101: (2) 139–163. 2019

RHIZOPHLYCTIDALES Letcher [Chytridiomycota]; P.M. Letcher et al. Mycological Research 112: 1031–1048

RHIZOPHLYCTIDACEAE Letcher [ Rhizophlyctidiales] P.M. Letcher et al. Mycological Research, 112: 1031–1048.
Also see this publication for epitype of Rhizophlyctis rosea, the type species.

Rhizophlyctis
A. Fischer 1892 sensu Sparrow 1960; I.J. Dogma designated R. mastigotrichis (Nowakowski) Fischer as lectotype; Nova Hedwigia 24: 393–411. 1973; but lectotype predated by designation of R. rosea (De Bary & Woronin) Fischer in Clements & Shear; The Genera of Fungi, p. 235. 1931. See W.H. Blackwell and M.J. Powell 1999. The nomenclatural propriety of Rhizophlyctis rosea. Mycotaxon 70: 213–217. Letcher et al designated an epitype for R. rosea; See: Mycol. Res. 112: 1035, figs 2A–I, 1039 6A and 1040 7A–D (2008) from observations of culture BR 186,

Rhizophlyctis aurantiaca I.J. Dogma; Nova Hedwigia 25: 51–89, Pls. I–III. 1974;
Saprobic; chitin; soil; Annapolis, MARYLAND, USA

Rhizophlyctis boninensis Kobayasi & Konno; Bull. Natl. Sci. Mus. 12: 725–733, fig. 3 L–Q. 1969.
Saprobic; ? cellophane; soil; Chichijima, BONIN ISLANDS

Rhizophlyctis bonseyi Sparrow; Mycopathol. Mycol. Appl. 25: 119–143, figs. 29–54. 1965;
Saprobic; chitin; soil, margin of reservoir, Maui, HAWAII, USA

Rhizophlyctis columellae S.N. Dasgupta & R. John; Indian Phytopathol. 43: 564–567, fig. 1. 1990 (1991).
Parasitic; zygospore of Spirogyra sp.; tank; Lucknow U., INDIA

Rhizophlyctis costatus Konno; Sci. Rep. Tokyo Kyoiku Daigaku Sect. B. 14: 227–292, Pl. 8, A–D. 1972.
Saprobic; cicada wings; forest soil; Ohdaigahara (Nara Prefecture), JAPAN

Rhizophlyctis fuscus (IF 3:310) Karling; Mycopathol. Mycol. Appl. 23: 215–222, figs. 12–21. 1964;
Saprobic; human & snake skin, corn leaf; soil; Madras, INDIA

Rhizophlyctis harderi Uebelm. Archiv fur Mikrobiologie 25:324. 1956. nom. inval.; lacked Latin description
= Uebelmesseromyces harderi M.J. Powell & Letcher MycoBank No.: 810749. Mycologia 107: 419–431. 2015

Rhizophlyctis hirsutus Karling; Mycopathol. Mycol. Appl. 23: 215–222, figs. 22–26. 1964.
Saprobic; skin, corn leaves, hemp seed; soil; dry rice paddy, Madras, INDIA

Rhizophlyctis lovettii (IF 3:310) Karling; Mycopathol. Mycol. Appl. 23: 215–222, figs. 1–11. 1964.
Saprobic; human fibrin film; soil; Madras, INDIA

Rhizophlyctis oceanis Karling; Amer. J. Bot. 56: 211–221 figs. 1–108. 1969;
Saprobic; purified shrimp chitin; soil; Pitcairn et al. Islands, OCEANIA

Rhizophlyctis oceanis var. floridaensis Karling; Nova Hedwigia 28: 209–229, figs. 17–28. 1976;
Saprobic; chitin; soil; flower garden, FLORIDA, USA

Rhizophlyctis petersenii var. appendiculata Karling; Sydowia 20: 96–108, figs. 60–67. 1967;
Saprobic; corn leaves and chitin; soil and water; NEW ZEALAND.

Rhizophlyctis reynoldsii I.J. Dogma; Nova Hedwigia 25: 51–89, Pl. VII., figs. 1–19. 1974;
Saprobic; chitin; leaf litter, Rangoon, BURMA

Rhizophlyctis rosea (de Bary & Woronin) A. Fisch., Rabenh. epitype P.M. Letcher et al. Mycological Research 112: 1030-1048. 2008

Rhizophlyctis serpentina (IF 4:318) I.J. Dogma; Nova Hedwigia 25: 51–89, Pl. IV–VI, Figs. 1–45. 1974.
Saprobic; chitin bait; soil & leaf litter; widespread, CAMEROON

Rhizophlyctis sp. Canter & Ingold; Trans. Brit. Mycol. Soc. 82: 739–742, figs. 1–26. 1984;
Parasitic; Dacrymyces stillatus conidia; Downs, S. Oxfordshire, U.K.

Rhizophlyctis tropicalis Sparrow & I.J. Dogma; Arch. Mikrobiol. 89: 177–204, fig. 4, A–M. 1973.
Saprobic; lens paper and onion skin baits; soil; DOMINICAN REPUBLIC

Rhizophlyctis variabilis Karling; Sydowia 20: 96–108, figs. 68–81. 1967.
Saprobic; bleached corn leaves; soil; NEW ZEALAND

Rhizophlyctis variabilis var. burmaensis I.J. Dogma; Nova Hedwigia, 25: 51–89, Pl. VIII, figs. 1–20. 1974.
Saprobic; chitin; soil & leaf litter; BURMA

Rhizophlyctis willoughbyi Konno; Sci. Rept. Tokyo Kyoiku Daigaku Sect. B. 14: 227–292. Pl. 7, A–D. 1972.
Saprobic; bee wings, cicada wings, and snake skin; soils; widespread, JAPAN

Rhizophydium Schenk; all Phlyctidium spp. into Rhizophydium; Karling; CI, p. 64. 1977

RHIZOPHYDIALES Letcher [Chytridiomycota, Chytridiomycetes]; P.M. Letcher et al. Mycological Research 110: 898–915, 2006

RHIZOPHYDIACEAE Letcher [Chytridiomycetes, Rhizophydiales]; P.M. Letcher et al. Mycological Research 110: 898–915, 2006

Rhizophydium achnanthis Friedmann 1952 Ξ Hapalopera achnanthis (Friedmann) A. Batko; ZH, p. 170. 1975

Rhizophydium algavorum Gromov, B.V., A.V. Pljusch and K.A. Mamkaeva, 1999. Protistology 1: 62—65.
Parasitic; Chlorococum minutum; pond; St. Petersburg, RUSSSIA

Rhizophydium anatropum (Braun) Karling; CI, p. 65. 1977 Ξ Phlyctidium anatropum Braun 1856

Rhizophydium androdioctes Canter; Trans. Brit. Mycol. Soc. 56: 115–120, figs. 1–19. 1971.
Parasitic; Dictyosphaerium pulchellum (Green alga); Loch Leven, Kinross, SCOTLAND

Rhizophydium angulosum Karling; Arch. Mikrobiol. 61: 112–127, fig. 1, M–X. 1968.
Saprobic; pollen and bleached corn leaves; many soil collections from OCEANIA
Boothiomyces angulosus (Karling) Jerônimo, D.R. Simmons, T.Y. James & Pires-Zottarelli . Nova Hedwigia 109: 399–412. 2019

Rhizophydium annulatum Sparrow; Canad. J. Bot. 55: 1501–1504, figs.1–6. 1977.
Saprobic; pine pollen; Punch Bowl; Melrose, FLORIDA, USA

Rhizophydium aphanomycis Karling; Nova Hedwigia 27: 747–771, figs. 12–21. 1976.
Parasitic; Aphanomyces sp.; soil; Ngorongora Crater, TANZANIA

Rhizophydium aureum Konno; Sci. Rep. Tokyo Kyoiku Daigaku Sect. B. 14: 227–293, Pl.3, figs. A–D. 1972.
Saprobic; snake skin, bee wings, & cicada wings; soil; Tsu-shima; Bonin Island, JAPAN

Rhizophydium biporosum (Couch) D.J.S. Barr; Canad. J. Bot. 51: 967–975. 1973
Ξ Phlyctochytrium biporosum Couch 1932; and = Phlyctidium bumilleriae Couch 1932

Rhizophydium blastocladianum S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 1–82, fig. 16. 1988.
Parasitic; Blastocladia on apple; tank sediment; Lucknow U., INDIA

Rhizophydium blyttiomycerum S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 1–82, fig. 24. 1988.
Parasitic; Blyttiomyces spinosus & zygospore of Spirogyra; ditch; Sultanpur Road, SE of Lucknow U., INDIA

Rhizophydium brevipes var. marinum (Kobayasi & Ookubo) Karling; 1977. p. 65
Ξ Phlyctidium brevipes marinum Kobayasi & Ookubo 1954

Rhizophydium brooksianum Longcore [Rhizophydiales; Rhizophydiaceae] Mycologia 96: 162–171. 2004
Saprobic; pine pollen; soil; Penobscot Co., MAINE, USA.

Rhizophydium bumilleriae (Couch) Karling; CI, p. 65. 1977 Ξ Phlyctidium bumilleriae Couch 1932;
See Rhizophydium biporosum (Couch) Barr 1973

Rhizophydium capillaceum D.J.S. Barr; Canad. J. Bot. 47: 991–997, figs. 12–22 on Pls. I–VIII. 1969.
Saprobic; pine pollen; soil: Ottawa, ONTARIO, CANADA

Rhizophydium clavatum Karling; Sydowia 20: 74–84, figs. 21–24. 1967.
Saprobic; chitin bait; soil sample; NEW ZEALAND

Rhizophydium clavatum S.N. Dasgupta & R. John (homonym); Bull. Bot. Surv. India 30: 1–82, fig. 34. 1988.
Parasitic; Closterium; tank; Lucknow U., INDIA

Rhizophydium coleochaetes (Nowakowski) Fischer 1892 Ξ Chytridium coleochaetes Nowakowski 1876;
H. Canter places sp. in Chytridium; Trans. Brit. Mycol. Soc. 43: 14–18. 1960

Rhizophydium collapsum Karling; Sydowia 17: 285–296, figs. 1–15. 1964.
Saprobic; pine pollen; brackish soil; Rhamnad Dist., INDIA

Rhizophydium conchiforme S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 1–82, fig. 35. 1988.
Saprobic ?; Spirogyra; ditch, Sultanpur Road, SE of Lucknow U., INDIA

Rhizophydium condylosum Karling; Arch. Mikrobiol. 61: 112–127, fig. 2, A–X. 1968;
Saprobic; human hair and snake skin; soil from Cook Island, FIJI & PITCAIRN

Rhizophydium contractophilum Canter; Trans. Brit. Mycol. Soc. 42: 185–192, figs. 1–4. 1959.
Parasitic; Eudorina elegans and Eudorina sp.; Lake Windermere, E.L.D., U.K.

Rhizophydium coralloidum (IF 4:484) Karling; Mycologia 68: 1245–1248, figs. 1–9. 1976.
Parasitic; Karlingia rosea; soil; Canaveral, FLORIDA, USA

Rhizophydium dentatum suggested as name for Miller’s (1968) “Dentate; but not validly published; W.C. Zattau: Master’s Thesis Clemson U. 1978. But molecular data (James et al. 2006) suggest that “Miller’s Dentate” (JEL103) is in the Chytridiaceae (Chytridiales)’; named as Odontochytrium milleri Ve´lez and Letcher MycoBank no.: 801484. Mycologia 105: 1251–1265. 2013

Rhizophydium difficile Canter 1954 Ξ Hapalopera difficilis (Canter) A. Batko; ZH, p. 169. 1975

Rhizophydium digitatum Scherffel 1926 = Phlyctochytrium planicorne Atkinson 1909: T.W. Johnson; Norw. J. Bot. 22: 249–257. 1975

Rhizophydium dubium Kiran & Dayal (invalid; type not designated); Indian Phytopathol. 44: 30–34, Pl. 1. 1991.
Saprobic; rotting leaves of Eichornia; pond; Agricultural Farm, Varanasi, INDIA

Rhizophydium echinocystoides Sparrow; J. Elisha Mitchell Sci. Soc. 84: 62–68, figs. 15–18. 1968.
Saprobic; pine pollen; Sphagnum bog; Humbolt Co, CALIFORNIA, USA

Rhizophydium elyensis Sparrow 1957 ≡ Boothiomyces (Sparrow) Jerônimo, D.R. Simmons, T.Y. James & Pires-Zottarelli . Nova Hedwigia 109: 399–412. 2019

Rhizophydium ellipsoidium (Ookubo & Kobayasi) Karling; CI, p. 64. 1977 Ξ Phlyctidium keratinophilum Ookubo & Kobayasi 1955

Rhizophydium fragilariae Canter 1950 Ξ Hapalopera fragilariae (Canter) A. Batko; ZH, p. 170. 1975

Rhizophydium fugax Canter; Trans. Brit. Mycol. Soc. 51: 699–705, Pl. 57 & fig. 1. 1968.
Parasitic; Cryptomonas spp.; plankton of lakes; E.L.D., U.K.

Rhizophydium gonapodyanum S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 1–82, fig. 23. 1988.
Parasitic; sporangium of Gonapodya polymorpha; tank sediment; Lucknow U., INDIA

Rhizophydium hispidulosum Seymour; J. Elisha Mitchell Sci. Soc. 86: 187–190. figs. 1–16. 1970.
Saprobic; cockroach wing bait; soil from ditch; Morehead City, NORTH CAROLINA, USA

Rhizophydium jobii Hassett MycoBank MB8535161; Mycologia https://doi.org/10.1080/00275514.2020.1761226
Saprobic; pine pollen bait; benthic detritus; SALALAH, OMAN.

Rhizophydium karlingii Sparrow 1960 = R. laterale (Braun) Rabenhorst; D.J.S. Barr; Canad. J. Bot. 51: 967–975. 1973

Rhizophydium koreanum Hyang B. Lee, S.J. Jeon, T.T.T. Nguyen; Fungal Diversity 96: 1–242 (see 219–221). 2019
pond water; Chonnam National University Arboretum, Gwangju, REPUBLIC OF KOREA
Index Fungorum # IF554571; Facesoffungi # FoF05792; GenBank LSU#  MH298649, MH298650

Rhizophydium lagenaria S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 1–82, fig. 21. 1988.
Parasitic; sporangium of Blastocladia on fruit bait; tank sediment; Lucknow U., INDIA

Rhizophydium laterale (Braun) Rabenhorst = R. karlingii Sparrow 1960; D.J.S. Barr; Canad. J. Bot. 51: 967–975. 1973

Rhizophydium lenelangeae (IF 4:484) Sparrow; Canad. J. Bot. 55: 1501–1504, figs. 7–15. 1977.
Saprobic; pine pollen bait; river bank soil; GUATEMALA

Rhizophydium littoreum Amon; Mycologia 76: 132–139, figs. 1–21. 1984.
?Saprobic; Bryopsis plumosa; marine, Atlantic coast, USA

Rhizophydium macroporosum Karling; Sydowia 20: 74–84, figs. 9–20. 1967.
Saprobic; snake skin and bleached corn leaves; soil samples; NEW ZEALAND

Rhizophydium manoense Sparrow; Mycopathol. Mycol. Appl. 25: 119–143. figs. 1–7. 1965.
Parasitic; diatom (Cocconeis); stream, Oahu, HAWAII, USA

Rhizophydium melosirae Friedman 1952 Ξ Hapalopera melosirae (Friedman) A. Batko; ZH, p. 170. 1975

Rhizophydium mougeotiae Pongratz; Schweiz. Z. Hydrol. 28: 104–132, fig. 2 & Pl. 5, 33–36. 1966.
Parasitic; Mougeotia gracillima; Plankton; Lake Léman, SWITZERLAND

Rhizophydium nobile Canter; Proc. Linn. Soc. London 179: 197–201, 2 Pl, fig. 1. 1968.
Parasitic; resting spores of Ceratium hirundinella; lakes; E.L.D., U.K.

Rhizophydium novae-zeylandiensis (Karling) Karling; CI, p. 65. 1977 Ξ Phlyctidium marinum Karling 1967

Rhizophydium obpyriformis (Karling) Karling; CI, p. 64. 1977 Ξ Phlyctidium mycetophagum Karling 1956

Rhizophydium olla (Sparrow) Karling; CI, p. 65. 1977 Ξ Phlyc tidium olla Sparrow 1933

Rhizophydium patellarium Scholz; Arch. Mikrobiol. 29: 354–362, fig. 2. 1958.
Saprobic; pine pollen bait; soils; northern SPAIN and GERMANY

Rhizophydium pedicellatum Paterson 1956; Emended by T.W. Johnson; Norw. J. Bot. 23: 139–151. 1976

Rhizophydium piriformis (Fott) Karling; CI, p. 65. 1977 Ξ Hapalopera piriformis Fott 1942

Rhizophydium planktonicum emend. Canter; J. Linn. Soc., Bot. 62: 267–278, fig. 1. 1969.
Parasitic; Asterionella formosa (diatom); lakes; E.L.D., U.K. Ξ Rhizophydium planktonicum Canter (in part) 1948

Rhizophydium poculiforme S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 1–82, fig. 28–30. 1988.
Parasitic; Closterium; tank; Lucknow U., INDIA

Rhizophydium polystomum Karling; Sydowia 20: 74–84, figs. 26–29. 1967 (Pls. XII–XIV).
Saprobic; bleached corn leaves; soil samples; NEW ZEALAND.

Rhizophydium porosum Sparrow & Lange; Canad. J. Bot. 55: 1879–1890, figs. 1–5. 1977.
Saprobic; pine pollen bait; Johnson Road Bog, Cheboygan Co., MICHIGAN, USA

Rhizophydium proliferum Knox & Paterson; Mycologia 65: 373–387, figs. 6–10. 1973.
Saprobic; pine pollen; soil or fresh water? Ross Island, ANTARCTICA

Rhizophydium punctatum Golubeva; Novosti Sistematiki Nizshikh Rastenii 25: 81–86, fig. 1. 1988.
Saprobic; pine pollen; Lake Teletzkoje; Altiaca Province, RUSSIA

Rhizophydium rarotonganensis Karling; Arch. Mikrobiol. 61: 112–127, fig. 1 A–L. 1968.
Parasitic; Nowakowskiella profusa; soil; Rarotonga, Cook Islands, OCEANIA

Rhizophydium reflexum S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 1–82, fig. 18. 1988.
Parasitic; Sporangium of Blastocladia on Pyrus fruit; tank sediment; Lucknow U., INDIA

Rhizophydium rhizinum S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 1–82, fig. 17. 1988.
Parasitic; sporangium of Blastocladia on Pyrus fruit; tank sediment; Lucknow U., INDIA

Rhizophydium rotundum S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 1–82, figs. 25–27. 1988.
Parasitic; Closterium, Oedogonium, and Zygnema; tank; garden, Lucknow U., INDIA

Rhizophydium scenedesmi (Fott) Karling; CI, p. 65. 1977 Ξ Phlyctidium scenedesmi Fott 1967

Rhizophydium sibyllinum (IF 4:420) Sparrow; Proc. Iowa Acad. Sci. 81: 2–5, figs. 1–9. 1974.
Saprobic; pine pollen; soil; Delphi, GREECE

Rhizophydium signyense Willoughby; Nova Hedwigia 22: 469–487, Pl. 2 m–t;4 e,f. 1971.
Saprobic; chitin bait; soil; Signy Island, ANARCTICA

Rhizophydium skujai (Skuja) Karling; CI, p. 64. 1977 Ξ Phlyctidium globosum Skuja 1948

Rhizophydium sparrowii S.N. Dasgupta & R. John; Indian Phytopathol. 43: 564–567, fig. 2. 1990 (1991).
“Saproparasitic”; Ulothrix sp.; ditch; Sultanpur Rd, SE of Lucknow U., INDIA

Rhizophydium sphaerocarpum var. rhizoclonii Huth & Gaertner; Trans. Brit. Mycol. Soc. 61: 431–434, Pl. 43. 1973. Parasitic; Rhizoclonium hieroglyphicum; brackish Water; Bremerhaven, GERMANY

Rhizophydium sphaerocarpum var. spirogyrae D.J.S. Barr; Canad. J. Bot. 48: 1607–1071, figs. 1–6. 1970.
Parasitic; moribund Spirogyra; southwestern ONTARIO, CANADA

Rhizophydium sphaerotheca Zopf 1887; Neotype: D.J.S. Barr; Canad. J. Bot. 47: 991–997, figs. 1–11. 1969

Rhizophydium spinosum Willoughby; Arch. Mikrobiol. 52: 101–131, fig. 1, i–w. 1965;
Saprobic; cellophane bait; soil; VICTORIA, AUSTRALIA

Rhizophydium spinosum Karling (homonym); Nova Hedwigia 35: 107–116, figs. 1–6, 1981.
Saprobic; cellophane & bleached corn leaves; soil samples; SRI LANKA

Rhizophydium spinosum S.N. Dasgupta & R. John (homonym); Bull. Bot. Surv. India 30: 1–82, fig. 20. 1988.
Parasitic; Blastocladia on fruit bait; tank sediment; Lucknow U., INDIA

Rhizophydium spinulosum (Sparrow) Karling; CI, p. 65. 1977 Ξ Phlyctidium spinulosum Sparrow 1933

Rhizophydium squamosum Golubeva; Novosti Sistematiki Nizshikh Rastenii 25: 81–86, fig. 2. 1988.
Saprobic; pine pollen; Lake Teletzkoje; ALTIACA PROVINCE, RUSSIA

Rhizophydium stellatum S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 182, fig. 22. 1988.
Parasitic; Sporangium of Gonapodya polymorpha; tank sediment; Lucknow U., INDIA

Rhizophydium tenue (Sparrow) Karling; CI, p. 65. 1977. Ξ Phlyctidium tenue Sparrow 1952

Rhizophydium tetragenum
Pongratz; Schweiz. Z. Hydrol. 28: 104–132, fig. 1 & Pl. 4, 25–28. 1966.
Parasitic; Asterionella formosa; plankton; Lake Leman, SWITZERLAND

Rhizophydium tubulatum S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 1–82, fig. 31–33. 1988.
Parasitic; Closterium; tank; Lucknow U., INDIA

Rhizophydium ubiquetum Canter; Trans. Brit. Mycol. Soc. 44: 163–176, figs. Ia–s, 2 a–k, Pl. 12. 1961.
Saprobic; Cosmarium and other desmids; plankton of lakes, E.L.D., U.K.

Rhizophydium undatum O.G. Golubeva; Novosti Sistematiki Nizshikh Rastenii 25: 81–86, fig. 3. 1988.
Saprobic; pine pollen; Lake Teletzkoje; ALTIACA PROVINCE, RUSSIA

Rhizophydium undulatum Sparrow & Lange; Canad. J. Bot. 55: 1879–1890, figs. 9–11. 1977.
Saprobic; pine pollen bait; Johnson Road Bog, Cheboygan Co., MICHIGAN, USA

Rhizophydium urcelolatum S.N. Dasgupta & R. John; Bull. Bot. Surv. India 30: 1–82, fig. 19. 1988.
Parasitic; Blastocladia on fruit bait; tank sediment; Lucknow U., INDIA

Rhizophydium venezuelensis Karling; Nova Hedwigia 34: 645–668, figs. 1–9. 1981.
Saprobic; cellophane, snake skin, hemp; soil sample; VENEZUELA

Rhizophydium venustum Canter; Trans. Brit. Mycol. Soc. 46: 305–320, fig. 7, a–i. 1963.
Parasitic; cysts; Uroglena americana; lakes; E.L.D., U.K. Ξ Zygorhizidium venustum (Canter) Canter 1971

RHYNIOVEXATOR M. Krings & H. Kerp Review of Palaeobotany and Palynology 271: 104106. 2019. Fossil

Rhyniovexator penetrans
M. Krings & H. Kerp Review of Palaeobotany and Palynology 271: 104106. 2019
Fossil, possibly a chytrid; parasite of Anechosoma oblongum, a microfossil in the early Devonian Rhynie and Windyfield chert. SCOTLAND

RODMANOCHYTRIUM M.J. Powell & Letcher [Chytridiales; Chytriomycetaceae] MycoBank no.: 830008; Phytologia 101: 175-187. 2019

Rodmanochytrium pyriforme M.J. Powell & Letcher MycoBank no.: 830009; Phytologia 101: 175-187. 2019
water and moist soil; chitin bait; Washington County, Alabama, UNITED STATES

Rodmanochytrium sphaericum M.J. Powell & Letcher MycoBank no.: 830010; Phytologia 101: 175-187. 2019
aquatic sample; chitin bait; Tuscaloosa, Alabama, UNITED STATES

Rozella Cornu 1972; D.J.S. Barr placed provisionally in Olpidiaceae [incertae cedis]; HP, p. 463. 1990.
A. A. Held: Bot. Review 47: 451–515, 1981; Review of Rozella and Rozellopsis.
See James et al. 2006 for basal position of Rozella, outside of the named orders of the Chytridiomycota.
Now in Cryptomycota. See Jones et al. IMA Fungus 2: 173–175. 2011; or Rozellomycota D. Corsaro & R. Michel, 2014; or Rozellomycota T. James & Berbee, 2011; or Rozellosporidia Karpov, 2017

Rozella blastocladiae in S.N. Dasgupta; Indian Phytopathol. 35: 215. 1982; ? nomen nudum

Rozella coleochaetis Sparrow; Pap. Michigan Acad. Sci. 50: 115–123, figs. A–E, 1964.
Parasitic; Coleochaete sp.; Smith’s Bog, Cheboygan Co., MICHIGAN, USA

Rozella diplophlyctidis Karling; Nova Hedwigia 45: 529–535, figs. 1–6. 1987.
Parasitic; Diplophlyctis intestina; Moribund Nitella flexilis; Ross Biological Reserve

Rozella itersoniliae D.J.S. Barr & Bandoni; Mycologia 71: 1261–1264, figs. 1–4. 1979.
Parasitic; Itersonilia perplexante (Hyphomycete); Taraxacum leaf over agar

Rozella longicollis Karling; Sydowia 19: 213–226, Pl. 46, figs. 21–29. 1965.
Parasitic; Pythium (Oomycete); soil sample from NEW ZEALAND

Rozella longisporangia Willoughby and Rigg; Nova Hedwigia 37: 369–383, fig. 1 A–F. 1983.
Parasitic; Pythium (Oomycete); field soil with neutral pH; MAJORCA

Rozella multimorpha Letcher & Longcore; MycoBank  821536. Journal of Eukaryotic Microbiology 65: 180–190 (2018). Parasitic; Pythium host; small pond, Lyle E. Littlefield Garden, University of Maine Campus, Orono, MAINE, USA.

Rozella parva Canter; J. Linn. Soc., Bot. 62: 267–278, fig. 3. 1969.
Parasitic; Zygorhizidium affluens; lakes; E.L.D., U.K.

Rozella rhizoclosmatii Letcher and Longcore; MycoBank No. MB817338. Fungal Ecology (in press) 2016.
Parasitic; Rhizoclosmatium; fen around Perch Pond, Old Town, Maine, USA

RUMINOMYCES Y.W. Ho [Neocallimastigales, Neocallimastigomycota]; Mycotaxon 38: 397–405. 1990 = Anaeromyces Breton et al. 1990 (described first)

Ruminomyces elegans Y.W. Ho; Mycotaxon 38: 397–405, figs. 1–3. 1990.
Saprobic; oat chaff; rumen; Hereford steer, Armindale, AUSTRALIA
Ξ Anaeromyces elegans (Y.W. Ho) Y.W. Ho 1993