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

Dactylospora mangrovei E. B. G. Jones, Alias, Abdel-Wahab & S. Y. Hsieh, Mycoscience 40: 317. 1999.

 Description: Ascomata 160-240 μm high, 400-640 μm diameter, at first subglobose, becoming semiglobose or discoid, flat or convex, apothecia-like, superficial, sessile, rooted in the substrate with an obconical foot, fleshy-leathery, dark reddish-brown, appearing almost black when dry, solitary or gregarious. Exciple composed of thick-walled, subglobose to polygonal cells with large lumina, diverging from the center in parallel rows, merging into the sclerenchymatous foot, forming a textura angularis; barely arching over the hymenium. Hypothecium composed of thin-walled cells, forming a textura angularis, claret-colored, merging basally into the hyaline foot. Epithecium brownish, crumbling, finally exposing the hymenium. Pseudoparaphyses 50-80 × 1-2 μm, at the apex 2.5-4 μm diameter, clavate, simple, rarely branching, septate, hyaline, surpassing the asci. Asci 40-63 × 8.3-14.1 μm, eight-spored, clavate, short pedunculate, bitunicate, apically thick-walled, thinner toward the base, without apical apparatuse; the ectoascus secretes a gelatinous sheath that reacts blue with iodine. Ascospores 11-16.5 × 4-6.5 μm, obliquely one-or biseriate, ellipsoidal or obovoid, one-septate in the middle, constricted at the septum, at first grayish-green, becoming brownish; epispores with delicate, forked, longitudinal striations.

Taipei, Pali, 4 Apr. 1992, PL0404-10; Taipei, Chuwei, 4 Jan. 1989, CW0104, 16 Nov. 1989, CW1116-10.

 Habitat: Saprobic on mangrove wood.

Hong Kong; Malaysia; Taiwan.


Jones, EBG et al. 1999; Hsieh, SY et al. 2002.


S. Y. Hsieh

 Note: null