Arcyria versicolor of western mountains, U.S.A. (Myxomycetes: Trichiales: Trichiaceae): a morphological and taxonomic study with observations of nivicolous species

  • Harold W. Keller Botanical Research Institute of Texas
  • Relf L. Price Los Alamos National Laboratory
  • Billy G. Stone Botanical Research Institute of Texas
  • Edward D. Forrester Botanical Research Institute of Texas
Keywords: capillitium, computer stacking, fruiting bodies, Jemez Mountains, New Mexico, scanning electron microscopy, snowbank slime molds, sporangia, Valles Caldera National Preserve

Abstract

Arcyria versicolor (Trichiales: Trichiaceae) is a distinct myxomycete species described by William Phillips in 1877. The genus Arcyria dates back to Linnaeus in 1753 through the species A. denudata. Arcyria sporangia are brightly colored red, yellow, grey or white, mostly stalked, often in large groups easily seen with the naked eye. Approximately 54 species are known, many are common, and distributed worldwide. Collectors often encounter these colorful species on decaying logs as clusters of many sporangia often covering extensive areas. Arcyria versicolor, collected in the Valles Caldera National Preserve located in the Jemez Mountains of north central New Mexico, is a new record for the state. The nomenclatural history of this species is reviewed and the justification for selection of the species name versicolor is discussed. Arcyria versicolor is accepted as the valid species name and A. vitellina a synonym after examination of type specimens. Environmental parameters for coloration are discussed in general for fruiting bodies of Arcyria and more specifically for nivicolous snowbank species. Transitional stages of plasmodial color to mature fruiting body formation are described for Arcyria versicolor. More than 140 specimens of Arcyria versicolor fruiting bodies were examined with light microscopy and in part illustrated with multifocal computer stacked imaging. Higher magnifications were highlighted using scanning electron microscopy. A more complete and accurate species description is provided for Arcyria versicolor. Differences of fruiting body morphology including habit, color, dehiscence, peridial inner and outer surface features, capillitial ornamentation and size, spore color, size, and ornamentation, and stalk spore-like bodies are described and illustrated. Observation of type specimens from the type locality is illustrated, discussed, and nomenclatural evaluation given for the name selected. Mountain myxomycetes are reviewed based on the observations of T.H. Macbride and his early 1914 paper published in Mycologia. Collection data is presented that compares the dark-spored and light spored nivicolous myxomycetes in the French Alps. The history of renown collectors of nivicolous myxomycetes in western mountains of U.S.A. documents the discovery and study of this special ecological group of myxomycetes. This current paper is the first in a series from an ongoing research project entitled Myxomycetes of New Mexico.

References

Belozerskaya, T.A., N. Nata lya, N.N. Gessler, & A.A. Ave r‘Yanov. 2017. Melanin. Pigments of fungi. Chapter 8, Fungal Metabolites Springer International Publishing, New York, U.S.A. Pp. 263–291.

Dahl, M.B., O. Shchepin, C. Schunk, A. Menzel, Y.K. Novozhilov, & M. Schnitt ler. 2018. A four-year survey reveals a coherent pattern between occurrence of fruit bodies and soil amoebae populations for nivicolous myxomycetes. Sci. Rep. 8:11662.

Emoto, Y. 1977. The myxomycetes of Japan. Sangyo Tosho Publishing Co., Tokyo, Japan.

Evenson, V.S, A.W. Wilson, & S.T. Bate s. 2018. Of medicine, mountains, and mushrooms: The life and legacy of Sam Mitchel. Fungi 10(4):28–36.

Farr, M.L. 1976. Myxomycetes. Flora Neotropica 16:1–305.

Gessler, N.N., A.S. Egorova , & T.A. Belozerskaya. 2014. Melanin pigments of fungi under extreme environmental conditions (Review). Appl. Biochem. Microbiol. 50:105–113.

Hagelstein, R. 1944. The Mycetozoa of North America. Mineola, New York, U.S.A.

Keller, H.W. 2012. Myxomycete history and taxonomy: Highlights from the past, present, and future. Mycotaxon 122:369–387.

Keller, H.W. & K.L. Braun. 1999. Myxomycetes of Ohio: Their systematics, biology and use in teaching. Bull. Ohio Biol. Surv. 13(2):1–182.

Keller, H.W., H.C. Aldrich, & T.E. Brooks. 1973. Corticolous myxomycetes II: Notes on Minakatella longifila with ultrastructural evidence for its transfer to the Trichiaceae. Mycologia 65:768–778.

Keller, H.W. & T.E. Brooks. 1975. Corticolous myxomycetes III: A new species of Badhamia. Mycologia 67:1218–1222.

Keller, H.W., S.E. Everhart, & C.M. Kilgore. 2017. The myxomycetes: Basic biology, life cycles, genetics and reproduction. In: Stephenson, S. & C. Rojas, eds. “Myxomycetes: Biology, systematics, biogeography and ecology,” Chapter 1. Elsevier, Atlanta, Georgia, U.S.A. Pp. 1–40.

Keller, H.W. & V.M. Marshall. 2019. A new iridescent corticolous myxomycete species (Licea: Liceaceae: Liceales) and crystals on American elm tree bark in Texas, U.S.A. J. Bot. Res. Inst. Texas 13(2):367–386.

Kowalski, D.T. 1967. New records of myxomycetes from California. Madrono19 (2):43–46.

Kowalski, D.T. 1975. The myxomycete taxa described by Charles Meylan. Mycologia 67:448–494.

Lado, C. 2004. Nivicolous myxomycetes of the Iberian Peninsula: Considerations on species richness and ecological requirements. Syst. Geogr. 74:143–157.

Lado, C. 2005–2020. An online nomenclatural information system of Eumycetozoa. Real Jardin Botanico, CSIC, Madrid, Spain. Last consulted, 12 June 2020.

Lado, C. & F. Pando. 1997. Flora Mycologica Iberica, myxomycetes, 1. Ceratiomyxales, Echinosteliales, Liceales, Trichiales. 2:1–323. Madrid, Spain.

Lado, C. & A. RonikIer. 2008. Nivicolous myxomycetes from the Pyrenees: Notes on taxonomy and species diversity Part I. Physarales and Trichiales Nova Hedwigia 87:337–360.

Linnaeus, C. 1753. Species plantarum. 2 vols. Salvius. Stockholm. Facsimile edition. 1957-1959. Ray Society, London.

Lister, A. 1894. A monograph of the Mycetozoa. Being a descriptive catalogue of the species in the Herbarium of the British Museum, Ed, 1, Printed by Order of the Trustees, London, UK, 1911. Ed. 2, Revised by G. Lister, 1925. Ed. 3, Revised by G. Lister.

MacBride, T.H. 1899. The North American slime-moulds, being a list of all species of myxomycetes hitherto described from North America, including Central America. The Macmillan Company, New York, U.S.A.

MacBride, T.H. 1905. The slime moulds of New Mexico. Proc. Iowa Acad. Sci. 12:33–38.

MacBride, T.H. 1914. Mountain myxomycetes. Mycologia 6:146–149.

MacBride, T.H. 1922. The North American slime-moulds. A descriptive list of all species of myxomycetes hitherto reported from the continent of North America, with notes on some extra-limital species. Ed 2. The Macmillan Company, New York, U.S.A.

MacBride, T.H. & G.W. Martin. 1934. The myxomycetes. The Macmillan Company, New York, U.S.A.

Martin, G.W. 1949. Fungi, myxomycetes, Ceratiomyxales, Liceales, Trichiales, Stemonitales, Physarales. In: N. Amer. Fl. 1(1):1–151.

Martin, G.W. & C.J. Alexopoulos. 1969. The myxomycetes. University of Iowa Press, Iowa City, U.S.A.

Massee, G. 1892. A monograph of the Myxogastres. Methuen & Co., London, UK.

Mims, C.W. & M.A. Rogers. 1975, A light and electron microscope study of stalk formation in the myxomycete Arcyria cinerea. Mycologia 67:638–649.

Mitchel, D.H., S.W. Chapma n, & L. Farr. 1980. Notes on Colorado fungi, myxomycetes. Mycotaxon 10(2):299–349.

Moreno, G., A. Castillo, & R. Price. 2008. Comatricha calderaensis, a new species of nivicolous myxomycete from the Valles Caldera National Preserve, USA. Bol. Soc. Micol. Madrid 32:106–111.

Moreno, G., A. López-Villalba, & A. Castillo. 2019. Some nivicolous myxomycetes from Colorado and New Mexico (USA) sent by Ted Stampfer. Bol. Soc. Micol. Madrid 43:5–15.

Neubert, H., W. Nowotny, & K. Bauma nn. 1993.Die Myxomyceten, Band 1. Karlheinz Baumann Verlag, Gomaringen, Germany.

Phillips, W. 1877. Fungi of California and the Sierra Nevada Mountains. Grevillea 5:113–118.

Poulain, M., M. Meyer, & M. Bozonnet . 2011. Les Myxomycetes. Federation mycologique et botanique Dauphine-Savoie, Sevier, France. Vol. 2.

Price, R.L. 1971. The myxomycetes of Montane northern New Mexico. Master of Science Thesis. Utah State University, Logan, Utah, U.S.A.

Price, R.L., H.W. Keller, & T. Stam pfer. 2010. Valles Caldera National Preserve: Protecting a cryptogam paradise and a geologic jewel in New Mexico. Inoculum 61(2):1–4.

Rammeloo, J. 1977. Notes concerning the spore-like bodies in myxomycetes. Bull. Jard. Bot. Natl. Belgique 47:449–458.

Schnittler, M., D.A. Erastova , O.N. Shchepin, E. Heinrich, & Y.K. Novozhilov. 2015. Four years in the Caucasus – observations on the ecology of nivicolous myxomycetes. Fungal Ecol. 14:105–115.

Sturgis, W.C. 1907. The myxomycetes of Colorado. Colorado College Publ. Sci. Ser. 12(1):1–43.

Sundberg, W.J. & H.W. Keller. 1996. Myxomycetes: Some tools and tips on collection, care, and use of specimens. Inoculum 47(4):12–14.

Published
2020-12-07
How to Cite
Keller, H. W., Price, R. L., Stone, B. G., & Forrester, E. D. (2020). Arcyria versicolor of western mountains, U.S.A. (Myxomycetes: Trichiales: Trichiaceae): a morphological and taxonomic study with observations of nivicolous species. Journal of the Botanical Research Institute of Texas, 14(2), 435-459. https://doi.org/10.17348/jbrit.v14.i2.1021