| Scientific Name | Revue Mycol. Toulouse 8: 80. 1886. |
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| Synonyms | Dicaeoma metanarthecii (Pat.) Kuntze, Revis. Gen. Pl. (Leipzig) 3: 469. 1898. |
| Disease | Rust fungus alternating between Ixeris (Asteraceae) and Metanarthecium/Aletris (Nartheciaceae) |
| Taxonomic Rank | |||
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| Order | Pucciniales | Family | Pucciniaceae |
| Distribution | Known only in Japan (Hiratsuka et al. 1992; Ono 2014). |
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| Characteristics | Heteroecious macrocyclic rust fungus. Spermogonia produced in dense groups on yellowish leaf spots of Ixeris, subepidermal, globose to subglobose, 74–110 × 79–118 µm, surrounded by paraphyses. Aecia subepidermal, erumpent, Aecidium-type, concentrically arranged; aeciospores 14–19 × 12–18 µm, colorless, 1–2 µm thick, distinctly verrucose. Uredinia on abaxial surface of Metanarthecium, subepidermal, erumpent, powdery, dark cinnamon-brown; urediniospores obovoid or ellipsoid, 20–29 × 14–24 µm, evenly echinulate, 2–3 µm thick, with 2–3 equatorial germ pores. Telia erumpent and blackish; teliospores two-celled, 38–67 × 14–26 µm, ellipsoid or obovoid, weakly constricted, apically thickened (7–20 µm), brown, with persistent pedicel. |
| Notes | Puccinia metanarthecii alternates between Ixeris (Asteraceae) and Metanarthecium or Aletris (Nartheciaceae). It was once confused with P. pachycephala, but Ono (2014) clarified their distinctness through morphological comparison and cross-inoculation experiments. P. pachycephala alternates between Ligularia and Veratrum, unlike P. metanarthecii. |
| Economic importance | Minor rust fungus with no known economic impact; primarily important for studies on host alternation and rust taxonomy in Liliales and Asteraceae–Nartheciaceae systems. |
| References | Hiratsuka N, Hasebe S. 1978. Rep. Tottori Mycol. Inst. 16: 1–36. Hiratsuka N. et al. 1992. The rust flora of Japan. Ono Y. 2014. Mycoscience 55: 5–11. |
GCCAGTTATCCCTGTGGTAACTTTTCTGGCACCTCTAGCTTTAAATTCTAAAGGACTAAAGGATCGATAGGCCACACTTTCATGGTTTGTATTCACACTG AAAATCAAAATCAAGGGGACTTTTACCCTTTTGTTCTACTTGAGATTTCTGTTCTCAATGAGTCCCCCTTAGGACACCTGCGTTATTATTTAACAGATGT GCCGCCCCAGCCAAACTCCCCACCTGACAATGTCTTCAACCCAGATTGGCCTATAAAAGACCTTAATTCTAAAAAGTGGGATGTTAATCCCAGCTCTGCT TCATTGAATAAGTAAAAAGACAATAAAGGTAGTGGTATTTCACTGGCGCTTACGCTCCCACTTATTCTACACCCTCTATGTCTTTTCACAATGTCAAACT AGAGTCAAGCTCAACAGGGTCTTCTTTCCCCGCTGATTCTGCCAAGCCCGTTCCCTTGGCTGTGGTTTCGCTAGATAGTAGATAGGGACAGTGGGAATCT CGTTAATCCATTCATGCGCGTCACTAATTAGATGACGAGGCATTTGGCTACCTTAAGAGAGTCATAGTTACTCCCGCCGTTTACCCGCGCTTGGTTGAAT TTCTTCACTTTGACATTCAGAGCACTGGGCAGAAATCACATTGTGTCAACACCATTTTCTGGCCATCACAATGCTATGTTTTAATTAGACAGTCAGATTC CCCTTGTCCGTTCCAGTTCATAGTTGACAGTTAATTGCTTGCCAGACGCTTTTAAAGGCTGCCCAAAACATCACAATAAAGTTCCATCCAAGTCCGCCAC TAGTTTCCTAGTAGTAGTCCTAGTCAGATCCTTAAAGATCTATTAAGGGCCCAACAAGCCCTGCCCTATGAGCCAATCCTTTTCCCTAAGTTACGGATCT ATTTTGCCGACTTCCCTTATCTACATTATTCTATTGACCAGAGGCTGATCACCTTGGGGACCTGATGCGGATATTGGTACAGTTGGGTACAAGACTTTTT CAATCCCTTGGTTTTTCAAGGATCCTCAAGGACACACCAGACTTTACAGAGGTGTAAAGCTCTACCAATCATTAAACCCTATCTCCAAATAATTTGCTTC CAGGGTTTCAGATTGTTAAGGAGAAAAGAAAACTCTTCCTGGGGCCCTTGCAGATGTCACCAAGTTCATATATGTTACCATTCAAAATCTGTATCCCAGT TGTAGAATTTTAACTACATTCCCTTTCAATAGGTGATGCTAACAAGAGCATACTTTAAAACAGACTTTCCCTATCTTTTAGGACTGACTAACCCATGTCC AACTACTGTGACCATGGAACCCTTCCCCACTTCAGTCTTCAAGGTTCTCACTTGAATATTTGCTACTTCCACCAAGATCTGCACTAGAGGCTGTTTCACT CAGCATCACTGCTAAAGCTTCAATACAAAACCCCCACGCCTGCCTACTCATTAATATTTTAAATAATATTAATGGCAAGGTATAGGTAATACACTTAAGC GCCATCCATTTTCAGGGCTAGTTCATTCGGCCGTTGAGTTGTTACACACTCCTTAGCGGATTCCGACTTCCATGGCCACCGTGCGGCTGTCTAGATGAAC TAACACCTTTTGTGGTGTCTCATGAGTGTATATTCTGGCACCTTAACCTTGCGTTCGGTTCATCCCGCATCGCCAGTTCTGCTTACCAAAAATGGCCCAC TAGAGACTCTCATTCAAATTCCCAAGTTCAATTAAGAAACAGGGGTATCTTACATATTTAAAGTTTGAGAATAGGTTAAGGATGTTTCATCCCCAAGGCC TCTAATCATTCGCTTTACCTCATAAAACTGATGTGAGTCTCTGCTATCCTGAGGGAAACTTCGGCAGGAACCAGCTACTAGATGGTTCGATTAGTCTTTC GCCCCTATACCCAAATTTGACAATCGATTTGCACGTCAGAACTGCTACGAGCTTCCACCAGAGTTTCCTCTGGCTTCACCCTATTCAGGCATAGTTCACC ATCTTTCGGGTCCCAACATACTTGCTCTTACTCAGTACCATCATATAAATAATCTGGACTGGTCAATGGTGCACTTTTTACAGATCCCATTTACATTCAC TTTCATTACGCATAAGGGTTTTAACACCCAAATACTCGCAAGCATGTTAGACTCCTTGGTCCGTGTTTCAAGACGGGTCATTTAAAGCTATTATACCAAC ATCCTCAATAAGAAAAACATTAATTTGTTTTACCAAATAAATGGCTTATTGCGATCCTCAATCTTAAACATTGTATCAAATTTAAGGATTATAACACAGC CTAAACTGTAACATCTCCAAAAACCTTCTCCAACATTCAAAGATTGATGTTGGTCTGTTAATCATTAGAATACACCTTTAAAAAAGTTGAACTAACAATA ACAAGTCTAACTTCAAATGTTTCCCTTTTAACAATTTCACGTACTGTTAACTCTCTTTCCAAAGTTCTTTTCATCTTTCCCTCACGGTACTTGTTTGCTA TCGGTCTCTCACCTATATTTAGCCTTAGATGGAATTTACCACCCACTTTGAGCTGCATTCCCAAACAACTCGACTCTTAGAGACTGTATCATATAGTACT ACTTATCCATTCCATAAACGGGATTATCACCCTCAATGATGCTGTTTTCCAACAGACTTATAAATGGGGTAGCACAGAAAACAGCTCTTCAAATTACAAC TCGGACTCTAAAAGAGCCAGATTACAAATTTGGGCTTTTCCCTCTTCACTCGCCGTTACTAGGGGAATCCTTGTTAGTTTCTTTTCCTCTGCTTATTGAT ATGCTTAAGTTCAGCAGGTAGTCCCACCTGATTTGAGGTCTTAAAAAAAAATTTGTCATATTGACAGGTTAGAAGCAATTTCATTACTATAAAGAAATGG CAGTATCTAAAAAAGATACACTTCTTAATGAAGATAATATATCACATTAAGTCAATCCAAATCAAAGTATGAAAAAAACTTATATATTTAAAGTGAGCCA ATTACAGCAACACTCAAAATCCATTAAAAAATCTTAATAAAATAAAATTAATTAATGAGAAGGTTTCATGACACTCAAACAGGTGTGCCTTTTGGAATAC CAAAAGGCGCAAGGTGCGTTCAAAGATTCGATGATTCACTGAATTCTGCAATTCACATTACTTATCACATTTCACTGTGTTCTTCATCGATGTGAGAGCC TAGAGATCCATTGTTAAAAGTTATATAATTTTTTGGTTTTTACATTCTTAAAACTTGATTTTAGACAATAATAATAAGGGGGGTAATGTGACAAAGATTA ATATCTTTGCCACGTATACCAAATTACTATGTTTCAATAAAGCTACATGTAATAAGGTAGAAGTGGTTTAAATTTTAAAAATTTGAGCCACAATTAAGTG CACTCATTTTTTTAATAATGATCCTTCCGCAGGTTCACCTACGGAAACCTTGTTACGACTTTTACTTCC
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GCCAGTTATCCCTGTGGTAACTTTTCTGGCACCTCTAGCTTTAAATTCTAAAGGACTAAAGGATCGATAGGCCACACTTTCATGGTTTGTATTCACACTG AAAATCAAAATCAAGGGGACTTTTACCCTTTTGTTCTACTTGAGATTTCTGTTCTCAATGAGTCCCCCTTAGGACACCTGCGTTATTATTTAACAGATGT GCCGCCCCAGCCAAACTCCCCACCTGACAATGTCTTCAACCCAGATTGGCCTATAAAAGACCTTAATTCTAAAAAGTGGGATGTTAATCCCAGCTCTGCT TCATTGAATAAGTAAAAAGACAATAAAGGTAGTGGTATTTCACTGGCGCTTACGCTCCCACTTATTCTACACCCTCTATGTCTTTTCACAATGTCAAACT AGAGTCAAGCTCAACAGGGTCTTCTTTCCCCGCTGATTCTGCCAAGCCCGTTCCCTTGGCTGTGGTTTCGCTAGATAGTAGATAGGGACAGTGGGAATCT CGTTAATCCATTCATGCGCGTCACTAATTAGATGACGAGGCATTTGGCTACCTTAAGAGAGTCATAGTTACTCCCGCCGTTTACCCGCGCTTGGTTGAAT TTCTTCACTTTGACATTCAGAGCACTGGGCAGAAATCACATTGTGTCAACACCATTTTCTGGCCATCACAATGCTATGTTTTAATTAGACAGTCAGATTC CCCTTGTCCGTTCCAGTTCATAGTTGACAGTTAATTGCTTGCCAGACGCTTTTAAAGGCTGCCCAAAACATCACAATAAAGTTCCATCCAAGTCCGCCAC TAGTTTCCTAGTAGTAGTCCTAGTCAGATCCTTAAAGATCTATTAAGGGCCCAACAAGCCCTGCCCTATGAGCCAATCCTTTTCCCTAAGTTACGGATCT ATTTTGCCGACTTCCCTTATCTACATTATTCTATTGACCAGAGGCTGATCACCTTGGGGACCTGATGCGGATATTGGTACAGTTGGGTACAAGACTTTTT CAATCCCTTGGTTTTTCAAGGATCCTCAAGGACACACCAGACTTTACAGAGGTGTAAAGCTCTACCAATCATTAAACCCTATCTCCAAATAATTTGCTTC CAGGGTTTCAGATTGTTAAGGAGAAAAGAAAACTCTTCCTGGGGCCCTTGCAGATGTCACCAAGTTCATATATGTTACCATTCAAAATCTGTATCCCAGT TGTAGAATTTTAACTACATTCCCTTTCAATAGGTGATGCTAACAAGAGCATACTTTAAAACAGACTTTCCCTATCTTTTAGGACTGACTAACCCATGTCC AACTACTGTGACCATGGAACCCTTCCCCACTTCAGTCTTCAAGGTTCTCACTTGAATATTTGCTACTTCCACCAAGATCTGCACTAGAGGCTGTTTCACT CAGCATCACTGCTAAAGCTTCAATACAAAACCCCCACGCCTGCCTACTCATTAATATTTTAAATAATATTAATGGCAAGGTATAGGTAATACACTTAAGC GCCATCCATTTTCAGGGCTAGTTCATTCGGCCGTTGAGTTGTTACACACTCCTTAGCGGATTCCGACTTCCATGGCCACCGTGCGGCTGTCTAGATGAAC TAACACCTTTTGTGGTGTCTCATGAGTGTATATTCTGGCACCTTAACCTTGCGTTCGGTTCATCCCGCATCGCCAGTTCTGCTTACCAAAAATGGCCCAC TAGAGACTCTCATTCAAATTCCCAAGTTCAATTAAGAAACAGGGGTATCTTACATATTTAAAGTTTGAGAATAGGTTAAGGATGTTTCATCCCCAAGGCC TCTAATCATTCGCTTTACCTCATAAAACTGATGTGAGTCTCTGCTATCCTGAGGGAAACTTCGGCAGGAACCAGCTACTAGATGGTTCGATTAGTCTTTC GCCCCTATACCCAAATTTGACAATCGATTTGCACGTCAGAACTGCTACGAGCTTCCACCAGAGTTTCCTCTGGCTTCACCCTATTCAGGCATAGTTCACC ATCTTTCGGGTCCCAACATACTTGCTCTTACTCAGTACCATCATATAAATAATCTGGACTGGTCAATGGTGCACTTTTTACAGATCCCATTTACATTCAC TTTCATTACGCATAAGGGTTTTAACACCCAAATACTCGCAAGCATGTTAGACTCCTTGGTCCGTGTTTCAAGACGGGTCATTTAAAGCTATTATACCAAC ATCCTCAATAAGAAAAACATTAATTTGTTTTACCAAATAAATGGCTTATTGCGATCCTCAATCTTAAACATTGTATCAAATTTAAGGATTATAACACAGC CTAAACTGTAACATCTCCAAAAACCTTCTCCAACATTCAAAGATTGATGTTGGTCTGTTAATCATTAGAATACACCTTTAAAAAAGTTGAACTAACAATA ACAAGTCTAACTTCAAATGTTTCCCTTTTAACAATTTCACGTACTGTTAACTCTCTTTCCAAAGTTCTTTTCATCTTTCCCTCACGGTACTTGTTTGCTA TCGGTCTCTCACCTATATTTAGCCTTAGATGGAATTTACCACCCACTTTGAGCTGCATTCCCAAACAACTCGACTCTTAGAGACTGTATCATATAGTACT ACTTATCCATTCCATAAACGGGATTATCACCCTCAATGATGCTGTTTTCCAACAGACTTATAAATGGGGTAGCACAGAAAACAGCTCTTCAAATTACAAC TCGGACTCTAAAAGAGCCAGATTACAAATTTGGGCTTTTCCCTCTTCACTCGCCGTTACTAGGGGAATCCTTGTTAGTTTCTTTTCCTCTGCTTATTGAT ATGCTTAAGTTCAGCAGGTAGTCCCACCTGATTTGAGGTCTTAAAAAAAAATTTGTCATATTGACAGGTTAGAAGCAATTTCATTACTATAAAGAAATGG CAGTATCTAAAAAAGATACACTTCTTAATGAAGATAATATATCACATTAAGTCAATCCAAATCAAAGTATGAAAAAAACTTATATATTTAAAGTGAGCCA ATTACAGCAACACTCAAAATCCATTAAAAAATCTTAATAAAATAAAATTAATTAATGAGAAGGTTTCATGACACTCAAACAGGTGTGCCTTTTGGAATAC CAAAAGGCGCAAGGTGCGTTCAAAGATTCGATGATTCACTGAATTCTGCAATTCACATTACTTATCACATTTCACTGTGTTCTTCATCGATGTGAGAGCC TAGAGATCCATTGTTAAAAGTTATATAATTTTTTGGTTTTTACATTCTTAAAACTTGATTTTAGACAATAATAATAAGGGGGGTAATGTGACAAAGATTA ATATCTTTGCCACGTATACCAAATTACTATGTTTCAATAAAGCTACATGTAATAAGGTAGAAGTGGTTTAAATTTTAAAAATTTGAGCCACAATTAAGTG CACTCATTTTTTTAATAATGATCCTTCCGCAGGTTCACCTACGGAAACCTTGTTACGACTTTTACTTCC
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