Valsaceae

Valsaceae
Apiognomonia errabunda on a leaf
Systematics
Department : Ascomycota mushrooms Subdivision : Real ascent mushrooms (Pezizomycotina) Class : Sordariomycetes Subclass : Sordariomycetidae Order : Diaporthales Family : Valsaceae
Scientific name
Valsaceae
Tul .. & C. Tul.

The Valsaceae form a family from the order of the Diaporthales .

Classification

The Valsaceae have long been considered synonymous with the Diaportaceae. In fact, they are their sister family (see systematics), consisting of three genera. Cytospora is an anamorphic to many Valsa species.

features

Valsaceae is found on woody angiosperms in temperate latitudes worldwide. The fruiting bodies (Ascomata) are grouped together in well-developed Ento stromata with a central protuberance over a white disc. The stroma is the plexus of hyphae that is perceived as a supposed fruiting body, but actually only surrounds the tiny, conical fruiting bodies, the ascomata. Since the stroma is sunk into the host tissue, it is called an entostroma.

In Leucostoma and Valsella, the stromata are delineated by a black zone at the base. Leucostoma species have eight-pore asci, Valsella, however, multi-pore asci .

ecology

The Valsaceae are mostly saprophytes on wood, but also pathogens such as the Cytospora cancer on peach . Examples of saprophytic way of life are Valsa leucostoma on dead hardwood.

Systematics

External system

Castlebury et al. (2002) saw in the Diaporthaceae the sister family to the Valsaceae.

Diaporthales	Remaining diaporthales      Valsaceae      Diaporthaceae      Magnaporthaceae

Internal system

Within the Valsaceae, Castlebury et al. 3 subgroups: The basal group around Valsa mali , and two sister groups: species around the Valsa ambiens on the one hand and Leucostoma , Valsella and Valsa ceratosperma on the other.

Valsaceae	Valsa ambiens group      Leucostoma      Valsa ceratosperma      Valsella      Valsa mali

Genera

• Valsa : large genus, includes the very large anamorphic genus Cytospora
• Valsella
• Leucostoma

Web links

Commons : Valsaceae  - collection of images, videos and audio files

Individual evidence

1. ↑ ^{a b c d} Lisa A. Castlebury, Amy Y. Rossman, Walter J. Jaklitsch, Larissa N. Vasilyeva, 2002: A preliminary overview of the Diaporthales based on large subunit nuclearribosomal DNA sequences. Mycologia, 94: 1017-1031.
2. ^ Rossman, AY, Farr, DF, Castlebury, LA 2007. A review of the phylogeny and biology of the Diaporthales. Mycoscience 48: 135-144.