Perichaena microspora Penz. &amp; Lister 1898
Creators: name: Song, Wen-Long
name: Lin, Di
name: Li, Min
name: Du, Que
name: Chen, Shuang-Lin
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Protozoa
Mycetozoa
Myxomycetes
Trichiales
Arcyriaceae
Perichaena
Perichaena microspora

description: <i>Perichaena microspora</i> Penz. &amp; Lister, in Penzig, Myxomyc. Fl. Buitenzorg 76, 1898 (Fig. 4) Fruiting bodies grouped, spherical or nearly spherical sporangia or long strip or vermicular plasmodiocarp, or long or short, sometimes reticulated, yellowish brown, 0.2–2.0 mm in diameter. Peridium single-layer, simple, membranose, yellow, with smooth surface, inner surface with grains of material close to the base of the sporocarp. Capillitium loose, the upper end is connected with the peridium, canary yellow, branched and anastomosed, densely spiny, 1.5–3.0 μm in diameter. Spores golden in mass, canary by microscope, warted, 6.5–8.0 μm in diameter. <b>Specimens examined:—</b> CHINA. Hubei Province: Wufeng County, Houhe Nature Reserve, 30°04′24″N, 110°36′36″E, elevation 1102 m, on dead leaves, collected on 8 Apr 2019, Min Li, cultured in moist chamber on 18 Apr 2019, harvested on 20 May 2019 (HFNNU 3469, HFNNU 3456); Wufeng County, Houhe Nature Reserve, 30°04′24″N, 110°36′36″E, elevation 1102 m, on dead leaves, collected on 8 Apr 2019, Min Li, cultured in moist chamber on 18 Apr 2019, harvested on 12 Jun 2019 (HFNNU 3532, HFNNU 3534). <b>Distribution:—</b> Liberia and America (GBIF), Cuba, Costa Rica and Brazil (Cavalcanti <i>et al.</i> 2016, Lado &amp; de Basanta 2008), Philippines (Macabago <i>et al.</i> 2012), and China (this study). <b>Comments:—</b> <i>Perichaena</i> currently encompasses 38 species (Lado 2005 –2022). Species belonging to the genus form sessile or stalked sporangia with pale capillitium covered with various types of ornamentation in the form of warts, spines or rings, but never spirals, and with pale spores usually covered with warts or spines (Ronikier <i>et al.</i> 2013). <i>P. microspora</i> as a new Chinese record is morphologically almost identical to the description for this species (Macabago <i>et al.</i> 2012, Cavalcanti <i>et al.</i> 2016). The characteristic small spores of <i>P. microspora</i> have not been observed in any other species of this genus. The average spore size of <i>P. microspora</i> in this study and a reference (Cavalcanti <i>et al.</i> 2016) is about 7 μm. The most frequently measured value for spores of other species in this genus (Martin &amp; Alexopoulos 1969) is 10 μm. Our study is the first to use SEM to photograph and analyze this species, so as to more clearly describe the morphological characteristics of the species.
description: Published as part of <i>Song, Wen-Long, Lin, Di, Li, Min, Du, Que &amp; Chen, Shuang-Lin, 2022, Four new records of myxomycetes from China, pp. 181-188 in Phytotaxa 567 (2)</i> on pages 186-187, DOI: 10.11646/phytotaxa.567.2.6, http://zenodo.org/record/7141750
description: {"references": ["Cavalcanti, L. H., Bezerra, A. C. C., Barbosa, D. I., Agra, L. A. N. N., Powell, N. V., de Lima, V. X. &amp; Costa, A. A. A. (2016) Occurrence and distribution of Perichaena (Trichiaceae, Myxomycetes) in the Brazilian Northeastern Region. Acta Botanica Brasilica 30: 102 - 111. https: // doi. org / 10.1590 / 0102 - 33062015 abb 0238", "Lado, C. &amp; de Basanta, D. W. (2008) A review of Neotropical Myxomycetes (1828 - 2008). Anales del Jardin Botanico de Madrid 65: 211 - 254. https: // doi. org / 10.3989 / ajbm. 2008. v 65. i 2.293", "Macabago, S. A. B., dela Cruz, T. E. E. &amp; Stephenson, S. L. (2012) First records of myxomycetes from Lubang Island, Occidental Mindoro, Philippines. Sydowia 64: 109 - 118.", "Lado, C. (2005 - 2022) An on line nomenclatural information system of Eumycetozoa. Real Jardin Botanico, CSIC. Madrid, Spain. Available from: https: // eumycetozoa. com (accessed 1 June 2022)", "Ronikier, A., Lado, C. &amp; de Basanta, D. W. (2013) Perichaena megaspora, a new nivicolous species of myxomycete from the Andes. Mycologia 105: 938 - 944. https: // doi. org / 10.3852 / 12 - 191", "Martin, G. W. &amp; Alexopoulos, C. J. (1969) The Myxomycetes. University of Iowa Press, Iowa."]}