Russula xiav (Russula azurea)
- Kev faib tawm: Basidiomycota (Basidiomycetes)
- Subdivision: Agaricomycotina (Agaricomycetes)
- Chav Kawm: Agaricomycetes (Agaricomycetes)
- Subclass: Incertae sedis (ntawm txoj hauj lwm tsis meej)
- Kev txiav txim: Russulales (Russulovye)
- Tsev neeg: Russulaceae (Russula)
- Hom: Russula (Russula)
- hom: Russula azurea (Russula xiav)
Russula xiav loj hlob hauv hav zoov coniferous, feem ntau hauv hav zoov spruce, hauv tag nrho cov zes. Nws pom nyob rau hauv nruab nrab thaj tsam ntawm European ib feem ntawm Peb Lub Tebchaws, Baltic xeev.
Nws feem ntau loj hlob hauv pawg hauv hav zoov coniferous txij lub Yim Hli mus txog rau lub Cuaj Hli.
Lub hau yog los ntawm 5 mus rau 8 cm nyob rau hauv txoj kab uas hla, fleshy, tsaus nyob rau hauv qhov chaw, sib dua nyob rau hauv lub ntug, thawj convex, ces ca, depressed nyob rau hauv nruab nrab. Cov tawv nqaij tau yooj yim sib cais los ntawm lub hau.
Lub pulp yog dawb, kuj muaj zog, tsis caustic, odorless.
Cov phaj yog dawb, ncaj, feem ntau forked-branched. Spore hmoov yog dawb. Spores yuav luag spherical, warty-prickly.
Cov ceg yog tawv, ib txwm dawb, feem ntau me ntsis qws-zoo li tus, 3-5 cm siab, muaj zog hluas, tom qab hollow, laus txawm ntau chambered.
Cov nceb yog noj tau, qeb thib peb. Muaj palatability siab. Siv tshiab thiab ntsev