Mycoscience

, Volume 41, Issue 3, pp 227–232 | Cite as

Ravenelia cenostigmatis, a new rust fungus from Brazil

  • Reinhard Berndt
  • Francisco Freire
Original Papers
  • 23 Downloads

Abstract

Ravenelia cenostigmatis is described as a new species of plant rust (Uredinales) onCenostigma gardnerianum (Caesalpiniaceae) from Brazilian Cerrado. Teliospore heads ofR. cenostigmatis exhibit an unusually complex structure with four different kinds of cells: teliospore cells, sterile apical cells (intercalary between pedicel hyphae and teliospores), sterile hygroscopic cysts, and morphologically distinct border cells. The last are flattened, elaborately ornamented and probably sterile cells that are wedged between the teliospores and the cysts.Ravenelia cenostigmatis probably belongs to a natural assemblage of ravenelias that occur on caesalpiniaceous hosts and exhibit similar morphological traits.

Key Words

Caesalpiniaceae Kernkampella systematics teliospore morphology 

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Literature cited

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Copyright information

© The Mycological Society of Japan 2000

Authors and Affiliations

  • Reinhard Berndt
    • 1
  • Francisco Freire
    • 2
  1. 1.Lehrstuhl für Spezielle Botanik und MykologieUniversität Tübingen, Botanisches InstitutTübingenGermany
  2. 2.EMBRAPA/CNPATFortaleza-CearáBrazil

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