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15 September 1990, Volume 9 Issue Z1
    

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  • Mycosystema. 1990, 9(Z1): 1-8.
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    Ten species of Pythium were newly found in Ningxia. They are: P. aphanidermatum, P. catenulatum, P. irregulare, P. oligandrum, P. paroecandnun, P. periplocum, P. perplexum, P. salpingophorum, P. ultimum, and P. vexans. Six of them are first isolated from their host(s) in China. Only P. perplexum, which is a new record for China, is described and illustrated. The rest are listed and discussed.
  • Mycosystema. 1990, 9(Z1): 9-18.
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    Thirty-four isolates of fungi (2 from man and 32 from bamboo rats in Guangxi Zhuang Autonomous Region) have been identified on the basis of their morphological and cultural characteristics. IMI 68794 (Penicillium marneffei, ex-type), ATCC 24100 and ATCC 10438 (originally identified as Penicillium marneffei and P. diversum var. aureum respectively but were both reclassified as Penicillium primulinum by Pitt because of their yellow mycelial growth on MEA) were used for comparison. Despite some striking differences in cultural features (many isolates develop yellow encrusted hyphae which influence the colony appearance), all 34 isolates have been identified as Penicillium marneffei Segretain et al. because of the detail of their penicilli, the purplered pigmentation, and the formation of yeast-like cells at 37℃. The morphological characters of ATCC 24100 conform to those of P. marneffei as well. Therefore, ATCC 24100 should still be retained as P. marneffei. ATCC 10438, although it also develops ;ellow encrusted hyphae, possesses a quite different pattern of penicilli. It does not produce a purplered pigment, nor does it grow at 37℃.
  • Mycosystema. 1990, 9(Z1): 19-28.
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    Two priorities for continued systematic studies of the Discomycetes are defined: a need for traditional alpha-taxonomic methods coupled with extensive collecting, particularly in poorly-collected areas of the world, and the study of interrelationships among Discomycetes and lichenized Ascomycotina as well as the possible relationships of "isolated" orders and families. A new genus. Leucovibrissea, is proposed, raised from sectional rank. and placed as one of three genera in a new family, Vibrisseaceae, of the Leotiales. The current status of systematics in some selected groups is discussed, and a few unanswered but presumably fundamental biological questions are highlighted.
  • Mycosystema. 1990, 9(Z1): 29-42.
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    Fifteen species of Puccinia found on Lauraceae are reported. Four new species are proposed: P. linderue-setrhuenensis, P. litseae-elongatae, P. nothaphoebes, and P. phoebes-hunanensis. Brief notes are given to known species.
  • Mycosystema. 1990, 9(Z1): 43-52.
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    This paper is a preliminary report of a taxonomic study of Puccinia on the Labiatae in China. Nine species are recorded. P. clinopodii-polycephali and P. colquhouniae are described as new and P. plectranthi is new to China. All the specimens cited are kept in HMAS, Beijing.
  • Mycosystema. 1990, 9(Z1): 53-56.
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    A species of Puccinia collected on bamboo from Hunan Province is described and illus trated as new to science. A key to the known bambusicolous Puccinia in China is also appended.
  • Mycosystema. 1990, 9(Z1): 57-66.
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    A revised description of the genus Franzpetrakia is provided, based on F. microstegii (type on Microstegium sp.) and F. okudairae comb. nov. (syn. Ustilago okudairae, type on Coix lacryma-jobi). Problems of spore germination, synonyms, similarities and dissimilarities between different taxa are discussed. The genus Franzpetrakia is new to China and Japan, F. microstegii is new to China.
  • Mycosystema. 1990, 9(Z1): 67-88.
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    Ten species of the genus Sorosporium and 22 species of the genus Sporisorium are reported from China. Among them, 8 new combinations are proposed as follows: Sporisorium upludae (H. Sydow & Sydow) L. Guo, Sporisorium benguetensis (Zundel) L. Guo, Sporisorium cupillipedii (Ling) L. Guo, Sporisorium exsertum (McAlp.) L. Guo. Sporisorium miscanthi (Yen) L. Guo, Sporisorium moniliferum (Ell. & Ev.) L. Guo, Sporisorium tuiunurn (H. Sydow) L. Guo, and Sporisorium tanglinensis (Tracy & Earle) L. Guo.
  • Mycosystema. 1990, 9(Z1): 89-92.
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    A new species of myxomycetes, Dianema microsporangium sp. nov:, is described and illustrated by line drawings. Differences between this and other Dianema species are discussed. Type specimen of the new species is deposited in HMAS. This is the first record of a Dianema species in China.
  • Mycosystema. 1990, 9(Z1): 93-98.
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    In this paper reported are two new species, Perichaena membranacea sp. nov., P. poronema sp. nov., and two new records from China, Trichia erecta Rex, Arcyria abietina (A. Wigand) N. E. Nannenga- Bremekamp. The two new species are described and illustrated by scanning electron micro-graphs. Differences between the new specie and other related Perichaena species are discussed. Type specimens bf the new species are deposited in HMAS, Beijing.
  • Mycosystema. 1990, 9(Z1): 99-100.
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    The Fourth Congress of the Scientific Council of SMLL (the First Meeting ofthe Second Scientific Council of SMLL) was held in Being 15-17 August, 1990.
  • Mycosystema. 1990, 9(Z1): 101-104.
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    Term of the first director and members of the First Scientific Council of SMLL expired on 31 March 1990.