Phylum:Ascomycota >> Class: Ascomycetes >>  Order: Pezizales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Pithya cupressi

Pitya cupressi (Batsch.) Rehm., In Sawada, Descriptive Cat. Taiwan Fungi. Part V. 51: 31. 1931.

Pithya cupressi (Batsch.), Rehm. in Rab. Krypt. Fl. 1: 926. 1896.

Basionym: Pithya thujina Peck., In Saccardo, P. A. Syll. Fung. 8: 210. 1889.

 Description: Apothecia up to 1.2 mm diameter, sessile, gregarious on the foliage of Junipers, subglobose when young then expanded to disc. Hymenium plane or slightly concave, smooth, deep-orange, darker than the receptacle of the apothecium. Ectal excipulum subhyaline, composed of elongated prismatic cells with slender apex in the outermost layer. Asci hyaline, operculate, cylindrical above, becoming slender at the lower portion and forming a stalk-like base, (163-)183-208(-230) × 10-13.8(-15) µm, 8 ascospores located in the upper half portion of the ascus. Ascospores uniseriate, global, hyaline, containing a large oil-drop, non-septate, (10-)11.3-12.5 × (10.3)11.3-12.5 µm in diameter. Paraphyses filiform, (2.5-) 3.75-5 µm diam. at the widest part, blunt at the top, septate, branched at the base, exceeding the asci by up to (5-)7.5-17.5(-27.5) µm.

Taiwan, Taipei: in the campus of TMTC near Science Building, 01 May 1999, Wu990501G1; 25 May 1999, Wu990525G1; 27 May 1999, Wu990527G1 and 02 May 2000, Wu000502G1, and in the front of the office of Department of Reservation office in Jin-Ching Center of Yangmingshan National Park, 21 July 1999, Wu990721G1.

 Habitat: Gregarious on the foliage of Juniperus chinensis L. cv. kaizuka. Hort. ex Endl.

Europe, North America, Bermuda Islands, Mainland China, Japan and Taiwan.


Wu, ML. 2001; Seaver, FJ. 1928.


M. L. Wu

 Note: Sawada (1931) had reported that Juniper’s twig wilting disease was caused by an ascomycetes-Pitya cupressi, but he didn’t describe any characteristics of the pathogen. The original name published by Rehm and Seaver (1928) was Pithya cupressi instead of Pitya cupressi. Furthermore, there was none genus of Pitya had been reported in the world by checking in the Dictionary of Fungi. It was obviously a print mistake in Sawada’s publication.