Phylum：Ascomycota　>>　Class： Ascomycetes　>>　 Order： Verrucariales 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Orbilia delicatula
 
   
   
　Author：

Basionym: Peziza delicatula P. Karst., Notiser ur Sällskapets pro Fauna et Flora Fennica Forhändlingar10: 173. 1869.

Orbilia delicatula (P. Karst.) P. Karst., Notiser ur Sällskapets pro Fauna et Flora Fennica Forhändlingar 11: 248. 1870.
   
 
 
 
 
　Description： Apothecia scattered or gregarious, superficial, subsessile on a small base, bright-orange when fresh. Disc 0.5-1.5 mm diam., smooth, flat or concave when moist, margin even, slightly inrolled when dried, outline circular. Receptacle smooth, discoid or shallowly cupulate, centrally attached. Asci 8-spored, (26.7-)31.4-40.8(-44) × 1.6-3.1 μm, narrowly clavate or cylindric-clavate, tapered below and often forked at the base, apex usually truncate, slightly thickened, J– in Melzer’s Reagent. Ascospores (1.5-)2.0-2.5 × 1.0 μm, strongly curved, deeply reniform, with round and often slightly enlarged ends, minutely punctuate on the dorsal surface, hyaline, nonseptate, with one or two guttules, uniseriate or irregularly arranged. Paraphyses 1.6-2.4 μm diam., hyaline, slender, filiform, usually branched below, often slightly longer than the asci, abruptly swollen to an apical knob 1.6-2.4 μm across, neither coherent nor immersed in an epithecium. Ectal excipulum small cells, thin-walled, smaller towards the surface.
 
 
 
 
 
　Specimens：

Taiwan, Taichung: Huisun Forest Station, alt. 750m, on the decorticated wood, 20 Dec. 1997, M. L. Wu 971220-12 (TMTC).
 
 
 
　Habitat： Lignicolous. On dead wood and bark.
 
 
 
　Distribution：

Australia, Europe, North America, New Zealand and Taiwan.
 
 
 
　References：

Wu, ML. 1998.
   
   
   
　Provided：

M. L. Wu
 
 
　Note： The species of Orbilia posses thin and membranous apothecia. Orbilia auricolor and O. inflatula from Taiwan typically were yellow while O. delicatula was in bright orange when fresh. Only O. delicatula has reniform ascospore which is visibly punctuate on the dorsal surface.