Craterium muscorum Ing, Trans. Brit. Mycol. Soc.
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
Physarales
Physaraceae
Craterium
Craterium muscorum

description: <i>Craterium muscorum</i> Ing, Trans. Brit. Mycol. Soc. 78(3):443, 1982 (Fig. 2) Sporangia grouped, stalked, 1.5–2.0 mm in total height. Sporotheca subglobose, dark purple brown to near black, 0.55–0.65 mm in diameter. Hypothallus membranous, reddish brown. Peridium single, membranous, dark greyish brown to nearly black, haloed, irregularly cracked from the top, part remaining like a high cup. Stalk stout, erect, cylindrical, attenuate toward the apex, dark brown to blackish, 1.0– 1.5 mm long, filled with whitish, rhombic crystals of lime. Columella concolorous with the stalk, capitate form, reaching the middle of the sporotheca, filled with lime. Capillitium white, rigid and fragile, almost entirely limy, merging with the columella, branched and anastomosed, as a tridimensional net. Spores black in mass, dark brown by transmitted light, spherical, 12.0–13.5 µm in diameter, roughly reticulated with irregular warts, making a small number of meshes to a hemisphere. <b>Specimen examined:—</b> CHINA. Anhui Province: Yuexi County, Yaoluoping Nature Reserve, 30°98′64″N, 116°09′39″E, elevation 1089 m, on dead bark, 21 Oct 2021, collected by Que Du and Wenlong Song (HFNNU 8503, HFNNU 8504). <b>Distribution:—</b> Costa Rica (Lado <i>et al.</i> 2018), Wales (Lister &amp; Lister 1904), Great Britain, Ireland, Germany (Hosltein), Sandwich Islands, France and Nepal (GBIF), Poland (Stojanowaska &amp; Panek 2003), and China (this study). <b>Comments:—</b> <i>Craterium</i> was established by Trentepohl in 1797, and 19 species have been reported and accepted in the world (Lado 2005 –2022). Prior to now, twelve species have been reported in China (Li &amp; Li 1989, Li <i>et al.</i> 2008 b, Zhang &amp; Li 2013, Zhao <i>et al.</i> 2018, Zhang <i>et al.</i> 2020), which are <i>C. aureum</i> (Schumach.) Rostaf., <i>C. concinnum</i> Rex, <i>C. leucocephalum</i> (Pers. ex J.F. Gmel.) Ditmar, <i>C. microcarpum</i> H.Z. Li, Yu Li &amp; Shuang L. Chen, <i>C. minutum</i> (Leers) Fr., <i>C. obovatum</i> Peck, <i>C. rubronodum</i> G. Lister, <i>C. corniculatum</i> B. Zhang &amp; Yu Li, <i>C. subpurpurea</i> B. Zhang &amp; Yu Li, <i>C. yichunense</i> S.Y. Liu, F.Y. Zhao &amp; Y. Li, <i>C. dictyosporum</i> (Rostaf.) H. Neubert and <i>C. aureomagnum</i> Hooff &amp; Nann. -Bremek. To our knowledge, this is the first report of <i>C. muscorum</i> from China. Lister &amp; Lister (1904), who originally described this species as <i>Badhamia rubiginosa</i> var. <i>globosa</i> Lister &amp; G. Lister, found it in the north of Wales. Ing (1982) clarified the nomenclatural status of this species, and named it <i>C. muscorum</i>. Our specimens were collected from mossy bark in autumn, supporting the affinity of this species for bryophytes and colder wet environments (Lado <i>et al.</i> 2018). Of the known species of <i>Craterium</i>, <i>C. muscorum</i> is similar only to <i>C. dictyosporum</i> in having irregularly dehiscing sporocarps, rarely circumscissile, and subreticulate or reticulate spores (Neubert <i>et al.</i> 1995, Zhao <i>et al.</i> 2018). However, the reticulation of the spores is almost complete, and with a prominent edge in <i>C. muscorum</i>, sets them apart.
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 page 183, DOI: 10.11646/phytotaxa.567.2.6, http://zenodo.org/record/7141750
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