Cirthium chikwakwa (Cyrustomium falcatum) - fern wosanyengerera atachoka kunyumba kuchokera ku banja la chithokomiro. Imapezeka zachilengedwe ku Asia, Oceania ndi South America. Mitundu 10 ya mbewuyi imadziwika.
Zambiri
Ndi fern wa herbaceous osatha. Dziko lakwawo ndilo malo otentha a Asia ndi South Africa. Ngakhale kudera lake lotentha, chikwangwani cha cirthium sichimazizira, kum'mwera chimatha kukhala chotseguka. Amanyamula mpweya wouma wanyumba wamba.
Masamba a ceveromium ndi mapinimidwe, kutalika kwa 35-50 masentimita, masamba ndi osakanikirana, oyipa, opindika m'mwamba, achikopa, okhala ndi mitsempha yofanana. Mbali yakumwambayi ya masamba ndi yonyezimira. Zomera zazing'ono zimamera pang'onopang'ono, okalamba, ochulukirapo, amapanga masamba atsopano pachaka.
Pogulitsa, nthawi zambiri mumapeza mtundu wake wa "Rochfordianum" wokhala ndi timapepala tating'ono.
Tsirtomium chisamaliro chakunyumba
Fern cytomium imakhala yolocha mthunzi, koma imawoneka bwino m'malo opepuka, yotetezedwa ndi dzuwa.
M'nyengo yozizira imakonda kuzizira, imasungidwa pamtunda wa 12-16 madigiri, koma imatha kutentha kutentha kwa chipinda chaka chonse. Kutentha kwa usiku kuyenera kukhala madigiri pang'ono patsiku.
Chaka chonse, madzi amtengo, pafupipafupi, ndi madzi ofewa. M'nyengo yozizira, pa kutentha kochepa, thirirani mbewuyo mosamala kwambiri.
Kumakhala chinyezi chambiri ndikulimbikitsidwa, koma mumlengalenga chomera ndichabwinobwino. Ndikofunika kupopera masamba pafupipafupi.
Feteleza. Munthawi ya kukula, cirtomyum iyenera kudyetsedwa ndi yofooka yankho la feteleza wamadzimadzi pokongoletsera zomera zokhazikika.
Mizu ikadzaza mphika. Khosi limayenera kukhala pamwamba pamtunda. Mizu yokhazikika ya cirtomyum simalola kufalikira, motero njirayi imachitika mosamala kwambiri.
Malo abwino osakanizika ndi mchenga wouma komanso wowoneka bwino ndi woyenera. Ndikofunika kuwonjezera masamba, moss sphagnum, zidutswa za makala, makungwa.
Kubalana kwa cirthium
Njira yosavuta ndikugawa mbewu kumayambiriro kwa nthawi yophukira. Itha kufalikira ndi ma spores, ali ndi kuchuluka kwa kumera mu cirthium. Ma spores omwe akutulutsa amayenera kupereka kutentha kosalekeza (pafupifupi 20-22 C) ndi kuwala kosunthika. Zimamera m'masabata angapo. Pambuyo pa miyezi iwiri, masamba oyamba amawoneka, kenako mbande zimagwedezeka.
