Re: [Aroid-l] Alocasia macrorrhizos and A. cucullata

From: LariAnn <AROIDIAN at worldnet.att.net> on 2009.09.04 at 23:35:08(19936) Peter and fellow aroiders, I need to jump in here and share what I've observed in my hybridization work with all of the species mentioned in recent posts (A. macrorrhizos, A. odora, and A. cucullata). Now, in my experience there are quite a few A. macrorrhizos cultivars available, and one I know of seems to be, as Peter mentiond, a culton of A. odora. However, most of the ones I call "A. macrorrhizos" have significant differences in floral morphology and in addition, are nearly genetically incompatible with what I have come to call the A. odora group. This group includes A. odora, A. gageana, A. odora 'Azurea', A. odora 'Indian' and A. cucullata. In hybridizing with both groups, I have found, first, that a cross of A. macrorrhizos and A. odora yields sterile offspring. A cross between A. odora and A. cucullata yields fertile offspring. Likewise, a cross between A. odora and either A. odora 'Azurea', or A. odora 'Indian' yields fertile offspring. Crosses between cultivars or varieties of A. macrorrhizos (such as blackstem, lutea, Borneo Giant, portei) yield fertile offspring. It is my position that genetic work can indicate the specific nature of various plants. Thoughts? LariAnn +More Aroidia Research _______________________________________________ Aroid-L mailing list Aroid-L@www.gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

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