Alsophila dregei

Alsophila dregei, ma'ana Cyathea dregei, Hassler, Michael & Schmitt, Bernd (June 2019). "Alsophila dregei". Checklist of Ferns and Lycophytes of the World. Vol. 8. Archived from the original on 2017-09-02. Retrieved 2019-09-15. ( fern bishiyar gama gari ko gewone boomvaring a cikin Afrikaans ) nau'in fern ne da ya yadu a kudancin Afirka .Large, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 127. ISBN 978-0-88192-630-9. 

A cikin Afirka ta Kudu, yana faruwa tare da itacen daji na asali (Gymnosphaera capensis) da Sphaeropteris cooperi daga Ostiraliya. Ƙarin arewa, a waje da Afirka ta Kudu, yana zaune tare da ƙarin nau'ikan fern guda biyu, A. manniana da A. thomsonii . 

Wannan nau'in an san shi da itacen fern na Afirka ta Kudu ko itacen fèrn (ya bambanta da danginsa, itacen fërn na gandun daji). An fi sani da shi a matsayin surk boomvaring a cikin Afrikaans.Large, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 127. ISBN 978-0-88192-630-9.

 Bayyanawa 

 Muhimman halaye 
Alsophila dregei yana da tsayi, mai tsayi kuma yana da tsayin mita 5 (16  da 20-45 cm a diamita. Yana da nau'in bambance-bambance, yawanci yana da babban akwati da kambi mai yawa. Wani lokaci ana rarraba shi. Fronds suna da tripinnate (rarely Bibinate) kuma suna iya kaiwa 3 m a tsawon. Suna da girma da kuma arrowing, tare da mafi ƙasƙanci pinnae yawanci rage. Yankin saman rassan yana da glabrate, yayin da ƙananan zai iya zama tomentose. rachis da stipe suna da launin ruwan kasa a launi kuma suna da tsayi. An rufe shi da ma'auni mai launin ruwan kasa. Har zuwa goma sha biyu Sori suna faruwa a kowace rukuni a kowane pinnule. 

 Kwatanta da sauran bishiyoyi 
Ana iya rarrabe shi daga itacen fern na gandun daji (Gymnosphaera capensis) ta hanyar kututture mai kauri, da kuma mafi ƙanƙanta (mataki na uku). Takardun A. dregei suna da santsi (cikakken) gefen, yayin da na G. capensis suna da sassauci. Kowane takarda na A. dregei yana da nau'ikan iri da yawa a ƙarƙashinsa, yayin da takarda na G. capensis yana da ɗaya kawai a kowace takarda. Yankunan A. capensis suna fitowa ƙasa, kuma yawanci suna da ƙananan ƙananan ganye da yawa, waɗanda ke fitowa a cikin tufts tsakanin fronds a saman tushe.

Ana iya rarrabe Sphaeropteris cooperi mai mamayewa daga A. dregei ta hanyar fararen gashi da launin ruwan kasa a kan sabbin ganyen ganye kuma wani lokacin ta hanyar raguwa a kan takardun.

 Tarihin lissafi 
Takamaiman ma'anar dregei tana tunawa da Johann Franz Drège (1794-1881), mai tara shuke-shuke na Jamus kuma mai bincike wanda ya yi aiki sosai a Afirka ta Kudu kuma ana kiransa Drège lokacin da yake ambaton sunayen shuke-huke.

 Rarraba da mazaunin 
An rarraba shi ko'ina a yankin Saharar Afirka, gami da Guinea, Saliyo, Ghana, Najeriya, da Kamaru a yamma da yammacin tsakiyar Afirka, da kuma gabashin da kudancin Afirka daga Jamhuriyar Demokradiyyar Kongo da Uganda zuwa Afirka ta Kudu. Har ila yau, asalinsa ne a Madagascar. A Yammacin Afirka yana girma a cikin tsaunuka da tsaunuka masu tsawo da kuma gandun daji daga 2,500-7,400 feet (760-2,260 . 

Alsophila dregei yana girma a kan kogin rafi, a gefen gandun daji da kuma wuraren ciyawa. Sau da yawa yana girma a bayyane, a cikin cikakke, hasken rana kai tsaye, idan akwai isasshen danshi. Tsire-tsire sun fi yawa a tsaunuka na mita 900-1,800 (3,000-5,900 . A cikin daji, an san shi da tsayayya da wuta.

 Shuka 
Alsophila dregei ba abu ne mai yawa a noma a matsayin shuka mai ban sha'awa, musamman a Afirka ta Kudu da Ostiraliya. Ya kamata a kare shuke-shuke kuma a girma a cikin humus mai arziki, tare da wadataccen ruwa. Wannan nau'in na iya tsira daga sanyi mai sauƙi tare da ƙananan lalacewa.

 Gidan wasan kwaikwayo 

 Manazarta