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Mycoporum californicum (Zahlbr.) R. C. Harris
Family: Mycoporaceae
[Mycoporellum californicum Zahlbr.,  more]
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Thallus: continuous, smooth, immersed in the substrate, whitish photobiont: absent Perithecia: hemispherical, black, immersed in groups of 1-5 below clypeus, 0.3-0.7 mm diam. ascomatal wall: black, absent below the hamathecium hamathecium: pseudoparenchymatous, without filaments, inspersed with and dissolving into oil droplets asci: pyriform, c. 60-75 x 15-25 µm, with 8, irregularly arranged ascospores ascospores: hyaline, clavate, 3-septate (starting with a supramedian euseptum), 17-22 x 5-7 µm; walls: not ornamented, without a gelatinous sheath Spot tests: K-, C-, KC-, P-, UV negative Secondary metabolites: none detected. Substrate and ecology: on bark of various woody plants World distribution: possibly endemic in western North America Sonoran distribution: only found in southern California, including the Channel Islands.