Phylum:Ascomycota >> Class: Ascomycetes >>  Order: Lecanorales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Dactylospora stygia

Dactylospora stygia (Berk. & Curt.) Haf., Beih. Nova Hedw. 62: 137-147. 1979.

Basionym: Patellaria stygia Berkeley & Curtis in Berkeley, Grevillea 4: 2. 1875.

 Description: Apothecia single or gregarious on decorticated wood, 0.5-1.0 mm. Disc inrolled, sessile, black, dark brown on outer layer. Asci cylindrical, 64.0-82.0 × 6.0-12.0 μm, 8-spored, uniseriate. Hymenium blued by iodine and forming a distinct blue ring on top of asci when stained with Melzer’s reagent. Ascospores 1-spetate, fusiform, olive-brown, with striation, 12.0-18.0 × 4.8-7.2 μm. Paraphyses with branches, swollen on top. Ectal excipulum composed of textura globulosa.

Taiwan. Yilan: Fushan Botanical Garden along the forest trail to water resource’s area, 25 July 1994, Wu940725-E4 (TMTC).

 Habitat: Lignicolous. On decayed wood of unidentified dicotyledonous trees.

America, Europe and Taiwan.


Wu, ML and Wang, YZ. 2000; Hafellner, J. 1979.


M. L. Wu

 Note: This species is only reported from Fushan Botanical Garden from Taiwan. That hymenium blued by iodine forming a distinct blue ring on top of asci and ascospores with 1-septate are two distinct characteristics of the species.