Bakin foda (Bovista nigrescens)
- Rarraba: Basidiomycota (Basidiomycetes)
- Yankin yanki: Agaricomycotina (Agaricomycetes)
- Darasi: Agaricomycetes (Agaricomycetes)
- Subclass: Agaricomycetidae (Agaricomycetes)
- Order: Agaricles (Agaric ko Lamellar)
- Iyali: Agaricaceae (Champignon)
- Halitta: Bovista (Porkhovka)
- type: Bovista nigrescens (blacking fluff)
'ya'yan itace:
Spherical, sau da yawa ɗan leƙen asiri, tushe ba ya nan, diamita 3-6 cm. Launin matashin naman kaza fari ne, sannan ya zama rawaya. (Lokacin da farin harsashi na waje ya karye, naman gwari ya zama duhu, kusan baki). Lokacin da spores ya girma, ɓangaren sama na jikin 'ya'yan itace ya rushe, yana barin buɗaɗɗe don saki spores.
Spore foda:
Kawa.
Yaɗa:
Porkhovka blackening yana girma daga farkon lokacin rani zuwa tsakiyar Satumba a cikin gandun daji iri-iri, a cikin makiyaya, tare da hanyoyi, yana son ƙasa mai wadata.
Makamantan nau'in:
Irin wannan gubar-launin toka mai kama da ita ta bambanta duka a cikin ƙananan girma kuma a cikin launi mai haske (lead-launin toka, kamar yadda sunan ke nunawa) launi na harsashi na ciki. A wasu matakai na ci gaba, wannan kuma yana iya rikicewa tare da puffball na kowa (Scleroderma citrinum), wanda aka bambanta da baƙar fata, nama mai tauri, kuma mai laushi, fata mai laushi.
Daidaitawa:
A cikin matasa, yayin da ɓangaren litattafan almara ya kasance fari, baƙar fata foda shine naman kaza mai ƙarancin inganci, kamar duk ruwan sama.