15 September 1993, Volume 12 Issue Z1

    

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  ANOTHER NON-THERMOPHILIC RHIZOMUCOR CAUSING HUMAN PRIMARY CUTANEOUS MUCORMYCOSIS

  Mycosystema. 1993, 12(Z1): 1-12.

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  Rhizomucor variabilis var. regularior Zheng & G.-q. Chen, a new variety of Rhizomucor variabilis Zheng & G.-q. Chen reported in 1991, is described and also found to be non-thermophilic, as well as a causative agent of a human primary cutaneous infection of a patient without an underlying disease. Common and distinguishing characteristics between var. regularior and var. variablis are detailed. A key to all the accepted taxa in Rhizomucor is provided.
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  CURRENT UNDERSTANDING OF THE GENUS SCUTELLINIA (PEZIZALES, OTIDEACEAE) IN CHINA

  Mycosystema. 1993, 12(Z1): 13-24.

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  The known species of Scutellinia in China are reviewed based on specimen examinations and literature work. The related taxonomic and nomenclatural problems are discussed. Among 17 previously recorded Scutellinia names 10 species are included. Six new Chinese records, S. chiangmaiensis, S. crucipila, S. nigrohirtula, S. patagonica, S. pennsylvanica, and S. vitreola, are reported with discussions. Geneosperma geneosporum forma guangxiense is described as new.
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  VARIATIONS IN ITS2 SEQUENCES OF NUCLEAR rDNA FROM TWO LASALLIA SPECIES AND THEIR SYSTEMATIC SIGNIFICANCE

  Mycosystema. 1993, 12(Z1): 25-29.

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  The internal transcribed spacer 2 (ITS2) of nuclear rDNA was amplified by PCR from total DNA extracted from sublecanorine apothecia of Lasallia papulosa (Ach.) Llano and L. rossica Dombr. lacking algal cell, and their sequences were determined. A systematic analysis based on a combination of the molecular and morphological characters with chemical data and distribution patterns is given.
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  FURTHER DATA ON THE GENUS UROMYCES OF CHINA

  Mycosystema. 1993, 12(Z1): 31-37.

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  Three species of the genus Uromyces are here reported as new to China. They are U. amoenus Syd. on Anaphalis contorta (D. Don) Hook.f., U. hobsoni Vize on Jasminum seguinii Levl., and U. striatellus Tranz. on Euphorbia esula L. Illustrations and discussions are given for each species.
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  MATERIALS FOR STUDY ON RUST FUNGI OF EASTERN RIMLAND OF QINGHAI-XIZANG (TIBET) PLATEAU Ⅲ. SOME NOTEWORTHY SPECIES OF PUCCINZA ON GRAMINEAE

  Mycosystema. 1993, 12(Z1): 39-46.

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  Four graminicolous species of Puccinia collected from Yunnan and Qinghai are reported. P. roegneriae is described as new. P. asperellae-japonicae Hara, P. orientalis Arthur & Cummins, and P. schedonnardi Kellerman & Swingle are new to China.
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  MATERIALS FOR STUDY ON RUST FUNGI OF EASTERN RIMLAND OF QINGHAI-XIZANG (TIBET) PLATEAU IV. AN UNUSUAL PUCCINIOID RUST ON RUBUS

  Mycosystema. 1993, 12(Z1): 47-50.

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  In continuation of the previous studies on rust fungi from eastern rimland of Qinghai- Xizang (Tibet) Plateau, the present paper gives an account of the morphological characters of an unusual puccinioid rust collected on Rubus pileatus Focke from western Sichuan. Generic affinity is unassured. The rust, which is here described as new, is assigned to the genus Arthuriornyces (A. rubicola sp. nov.) tentatively.
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  USTILAGO DEYEUXIAE SP. NOV. AND THREE SMUT SPECIES NEW TO CHINA

  Mycosystema. 1993, 12(Z1): 51-55.

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  A new species, Ustilago deyeuxiae L. Guo on Deyeuxia arundinacea (L.) Beauv., is described. U. deyeuxiae is close to U. scrobiculata Liro from which it differs in having more complete and higher ustilospore reticulations. New to China are: 1) Ustilago oxadalis Ellis & Tracy on Oxalis corniculata L., 2) Ustilago polygoni-alati Thimm. & Pavgi on Polygonurn nepalense Meisn., and 3) Urocystis melicae (Lagerheim & Liro) Zundel on Melica radula Fr. A revised description of Ustilago polygoni-alati is given.
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  RELATIONSHIP BETWEEN DNA FINGERPRINTS AND PATHOTYPE CHARACTERIATION OF CHINESE RICE BLAST ISOLATES (Pyricularia oryzae)

  Mycosystema. 1993, 12(Z1): 57-64.

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  By selecting from a genomic library of rice blast fungus, Pyricularia oryzae, we have cloned a genome specific and dispersed repeated sequence named POR6, which can be used to fingerprint various kinds of rice blast pathotypes. In this study, 6 isolates from Japan and 26 isolates from northern China were analyzed using POR6 as a probe. Twentytwo of northern China isolates were assigned to 8 lineages by evaluating the percentage of similar hybridization bands (Sxy) of each pairwise isolates. Some blast isolates maintained in our laboratory were proven to be varied with subsequent culturing in their pathotypes identified by the traditional method. When POR6 was used as a probe, two isolates showed variations in EcoRV digested DNA fingerprints among their asexual generations.
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  TWO NEW SPECIES OF MONACROSPORIUM FROM CHINA

  Mycosystema. 1993, 12(Z1): 65-69.

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  Two new species of Monacrosporium with fusiform conidia are described and illustrated. Monacrosporium longiphorum> sp..nov. produces much high conidiophores with conidia 3- to 4-septate, 39-65 (54) μm long and 13-22 (18) μm wide. Conidia of Monacrosporium microscaphoides sp. nov. are mainly 2-septate, 23-39 (29.5) μm long and 8-16 (12) μm wide.
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  NEW SPECIES AND NEW CHINESE RECORDS OF SEPTORIA

  Mycosystema. 1993, 12(Z1): 71-78.

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  221 specimens of Septoria were collected in Northeastern China during 1987-1991, 84 species of Septoria were identified, including 2 new species: S. dioscoricola Lu Guo-zhong et Bai Jin-kai and S. saposhnikoviae Lu Guo-zhong et Bai Jin-kai, and 13 new records for China. Most species have holoblastic sympodial conidiogenous cells.
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  FOLIICOLOUS COELOMYCETES OF XIAOWUTAI IN HEBEI PROVINCE

  Mycosystema. 1993, 12(Z1): 79-89.

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  This paper reports foliicolous coelomycetes from Xiaowutai collected by the first author in Hebei Province. Forty-six species belonging to 10 genera, including a new specics: Septoria periplocicola Y.L. Guo, G.Z. Lu & J.K. Bai, sp. nov., a new combination: Cylindrogloeum quercum(Miura) Y.L. Guo, G.Z. Lu & J.K. Bai, comb. nov., and 11 new records for China. Latin diagnosis and illustration for the new species and brief descriptions for the new records are given. Specimens examined are deposited in HMAS.
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  FOLIICOLOUS HYPHOMYCETES OF XIAOWUTAI IN HEBEI PROVINCE

  Mycosystema. 1993, 12(Z1): 91-102.

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  Forty species of foliicolous hyphomycetes collected from Xiaowutai in Hebei Province are reported in the presence paper. Two are new species: Mycovellosiella corni sp. nov., Phaeoramularia schisandrae sp. nov. and seven are new records for China. Latin diagnoses and illustrations of the two new species and briefly descriptions of the new records are provided. Specimens examined are deposited in HMAS.
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  TWO SPECIES OF PSEUDOCERCOSPORA

  Mycosystema. 1993, 12(Z1): 103-106.

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  One new species, Pseudocercospora arachniodis Y.L. Guo, sp. nov. and a new combination, Pseudocercospora paramignyae (Thirum. & Chupp) Y.L. Guo, comb. nov. are reported in this paper. A latin diagnosis and illustration of the new species are given. Specimens examined are deposited in HMAS.
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  MYXOMYCETES FROM CHINA X: Additions and Notes to Trichiaceae from China

  Mycosystema. 1993, 12(Z1): 107-112.

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  Reports are made on 4 species of Trichiaceae from China of which Arcyria exigua sp. nov. and A. aggregata sp. nov. are new to science, and A. helvetica and Hemitrichia intorta are new to china. The two new species are described and illustrated. Differences between the new species and other related Arcyria species are discussed. Type specimens of the new species are deposited in HMAS.
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  MYXOMYCETES FROM CHINA XI: A new species of Craterium

  Mycosystema. 1993, 12(Z1): 113-115.

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  A new species of Craterium from China, Craterium microcarpum, is described and illustrated by means of scanning electron micrograph (SEM) in this paper. The type specimen of this new species is deposited in HMAS.