Phylum:Ascomycota >> Class: Ascomycetes >>  Order: Helotiales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Lachnum fushanensis

Lachnum fushanensis M. L. Wu and J. H. Haines, Mycotaxon 73: 45-49. 1999.

 Description: Apothecia up to 0.8 mm diam, scattered on the lamina of dicotyledonous leaves, goblet-shaped to salviform, stipitate, covered with reddish-brown hairs tipped with ruby-red resin-like material. Disc cream-yellow, slightly concave to flat and exposed even when dried. Stipe slender, shorter than or equal to the diameter of the disc, covered with hairs of lighter color than those at the margin. Ectal excipulum textura prismatica composed of short, slightly thick-walled cells, 10-20 × 5-8 μm with walls ca. 1.0 μm thick. Hairs up to 70 μm, mostly 40-60 × 3-5 μm, unevenly cylindrical, occasionally with a slightly enlarged apex, 0-2-septate, thin-walled, flexuous, roughened with relatively coarse, vertically elongated granules ca. 1.0 μm high, light reddish brown, capped with dark red resin-like, water soluble, matter which turns dark brown on drying. Asci (42-)48-53(-54) × 2.9-3.9 μm, cylindric with a short, tapered base and a tapered apex, crozier present at the base, pore J+ when stained with Melzer's reagent. Ascospores (32-)35-38(-41) × 0.8-1.3 μm, cylindrical with rounded ends ca. 0.6-0.8 μm diam., enlarged in the central portion, straight or sometimes with a distinct bend in one end, otherwise bipolar in symmetry, non-septate, without conspicuous inclusions, fasciculate in the ascus. Paraphyses 2-3 μm diam. at the widest point, narrowly lanceolate with a short, blunt to acuminate tip, equal to or exceeding the asci by up to 5 μm.

Taiwan, Yilan: Fushan Botanical Garden, along the forest trail across the road from the museum, alt. 650 m, on the dead leaves of unidentified dicotyledonous tree, colleted by M. L. Wu, J. H. Haines, C. M. Chou and Y. Y. Wu, 5 Apr. 1998, 980405-39, (Holotype in TMTC); Isotype in NYS.

 Habitat: Foliicolous. On the dead leaves of dicotyledonous tree.

Taiwan, Indonesia and Philippines.


Wu, ML. 1999.


M. L. Wu

 Note: Lachnum fushanensis differs from all known lachnums in its very narrow, cylindrical spores with a swollen central region which resembles a snake after a large meal and its red resin-like deposits at the tips of the marginal hairs.