Approximately 10 collections of this species are known from three locations (Kong et al 2008). Search for records in GBIF only recovered one locality, the type locality for Macowanites mexicanus. There are no records with coordinates in other databases. For 10 years no new locations have been registered for the species.
Is an ectomycorrhizal fungi associated with Pinus hartwegii and P. montezumae. Therefore, it presents a restricted distribution to the highest mountains of central Mexico. Due to its adaptations to cold weather, P. hartwegii is the most imperiled pine species in Mexico when climate change scenarios are modeled. It is expected to reduce its potential habitat in 40% in the next 50 years (Arriaga y Gómez 2004).
Russula pineti is an endemic species from pine forests of central Mexico. It grows in association with Pinus hartwegii and P. montezumae. Both species with restricted distribution to the highest volcanoes of central Mexico.
Russula pineti (Singer) Trappe & TF Elliott, Fungal Syst. Evol. 1: 238. 2018.
Basionym: Cystangium pineti Singer, Mycol. Helv. 1: 417. 1985.
Synonym: Macowanites mexicanus Guzmán, Rev. Mex. Mic. 4: 116. 1998
Proposed synonym: Russula guzmanii Trappe & TF Elliott, Fungal Syst. Evol. 1: 236. 2018. nom. nov. for Macowanites mexicanus non Russula mexicana.
Russula pineti is an endemic species from the highest volcanoes of central Mexico. Therefore it has a restricted distribution. Global warming puts at risk the habitat where it develops.
Mexico, Transmexican Volcanic Belt: Cofre de Perote in Veracruz, La Malinche volcano in Tlaxcla, Popocatépetl volcano in Estado de Mexico, and Nevado de Colima in Jalisco.
Approximately 10 collections of this species are known from three locations, two from the Cofre de Perote (Singer 1985, Gumán 1988), one from the Popocatépetl volcano (Gumán 1988) and seven from the La Malinche volcano (Kong et al 2008). The search for records in GBIF only recovered one locality, the type locality for Macowanites mexicanus.
Population Trend: Uncertain
Semihypogeous. Solitary to gregarious. On soil, in high mountain pine forests. Ectomycorrhial with Pinus hartwegii and P. montezumae. Above 2800 m altitude, in central Mexico.
The high mountain pine forests in central Mexico are dominated by endemic species, such as Pinus hartwegii in the higher parts, between 3300-4000 m, and Pinus montezumae, between 2800 and 3300 m altitude. Due to their adaptations to cold climates, both species are in risk when modeling climate change and a potential reduction of their habitat is expected by 40% in the next 50 years. Particularly population of P. hartwegii from central Mexico, where Russula pineti develops, are at a high risk of extinction (Arriaga and Gómez 2004). In addition, these forests are often used by local inhabitants despite being within Natural Parks.
This species is not registered in any red list. Most of the the known populations are located within National Parks.
Range of spatial and altitudinal distribution.
Hosts - pinus species.
There are no reports about edibility or use of this species.
Arriaga L & Gómez L. 2004. Posibles efectos del cambio climático en algunos componentes de la biodiversidad de México. Cambio climático: una visión desde México. Pp. 253-263.
Elliott TF, Trappe JM. 2018. A worldwide nomenclature revision of sequestrate Russula species. Fungal Systematics and Evolution 1: 229-242.
Gumán G. 1988. Dos nuevas especies de Macowanites en México. Revista Mexicana de Micología 4: 115-121.
Kong A, Hernández Y, Montoya A y Estrada-Torres A. 2008. Notes on Cystangium pineti and Macowanites mexicanus (Russulaceae). Cryptogamie Mycologie 29(3): 285-292.
Singer, R. 1985. Studies on Secotiaceous Fungi. I. A new species of Cystangium. Mycologia Helvetica. 1(6):417-425.