Hemitrichia minor G. Lister 1911
Details
Hemitrichia minor G. Lister, J. Bot. 49 62 (1911)
Hemitrichia minor G. Lister 1911
Biostatus
Nomenclature
G. Lister
G. Lister
1911
62
ICN
Hemitrichia minor G. Lister 1911
species
Hemitrichia minor
Classification
Descriptions
Hemitrichia minor G. Lister 1911
None in PDD
Fruiting body a stalked to occasionally sessile sporangium (or more rarely somewhat plasmodiocarpous), scattered or in small groups, 0.3–0.8 mm tall (or up to 2 mm long when plasmodiocarpous). Sporotheca globose to subglobose or pulvinate when sessile, dull yellow to yellowish brown, sometimes glossy, darkening with age, dotted with large verrucae, 0.2–0.5 mm in diameter. Stalk, when present, thick, rugulose, black, flared at the apex, up to two-thirds the total height. Hypothallus inconspicouous. Peridium single, membranous, minutely papillose or bearing granular deposits and usually conspicuous, dark, rarely pale warts, dehiscence irregular. Capillitium a loose, flaccid reticulum consisting of filaments 2–3 µm in diameter, with numerous expansion and constrictions, marked with many, often spirally arranged, blunt spines or warts and sometimes spines up to 2 µm long. Spores yellow in mass, pale yellow by transmitted light, minutely warted, 9–11 µm in diameter. Plasmodium watery cinnamon.
Cosmopolitan (Martin & Alexopoulos 1976). First reported from New Zealand by Rawson (1937), based on specimens collected in Dunedin and South Canterbury.
Dead plant debris, bark of living trees, and the dung of herbivorous animals.
Martin & Alexopoulos (1969); Nannenga-Bremekamp (1991); Lado & Pando (1997), Ing (1999).
The prominent dark, peg-like warts on the peridium are distinctive and make this an easy species to identify. Two varieties have been recognised for Hemitrichia minor; var. pardina for forms with the conspicuous warts on the peridium, and var. minor for forms lacking these warts. Only H. minor var. pardina is known from New Zealand. Ing (1999) proposed that this variety be recognised as a distinct species (H. pardina).
Taxonomic concepts
Hemitrichia minor G. Lister 1911
Hemitrichia minor G. Lister (1911)
Perichaena minor (G. Lister) Hagelst. (1943)
Perichaena minor (G. Lister) Hagelst. (1943)
Global name resources
Collections
Metadata
1cb1d06d-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
25 May 1994
20 November 2001