title: Niebla ceruchis from Laguna Figueroa:  dimorphic spore morphology and secondary  compounds localized in pycnidia and apothecia.
abstract: During and after the floods of 1979-80 Niebla ceruchis growing epiphytically on Lycium brevipes was one of the dominant aspects of the vegetation in the coastal dunal complex bordering the microbial mats at Laguna Figueroa, Baja California Norte, Mexico.  The lichen on denuded branches of Lycium was far more extensively distributed than Lycium lacking lichen.  Unusual traits of this Niebla ceruchis strain, namely localization of lichen compounds in the mycobiont reproductive structures (pycnidia and apothecia) and simultaneous presence of bilocular and quadrilocular ascospores, are reported.  The abundance of this coastal lichen cover at the microbial mat site has persisted through April 1988.
authors.affiliation: Department of Biology, Boston University, Massachusetts 02215, USA.
authors.forename: M
authors.initials: M
authors.lastname: Enzien
authors.forename: L
authors.initials: L
authors.lastname: Margulis
mesh_terms: D001572:Benzofurans / Q000032:analysis; D004783:Environmental Microbiology; D004952:Esters / Q000032:analysis; D008011:Lichens / Q000737:chemistry / Q000166:cytology* / Q000502:physiology / Q000648:ultrastructure; D008800:Mexico; D008854:Microscopy, Electron; D012098:Reproduction / Q000502:physiology; D019657:Solanaceae / Q000382:microbiology*; D013172:Spores, Fungal / Q000166:cytology / Q000502:physiology; D013559:Symbiosis / Q000502:physiology*; D014315:Triterpenes / Q000032:analysis
chemical_list: D001572:Benzofurans; D004952:Esters; D014315:Triterpenes; C073339:usnic acid; C048779:zeorin