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Aroideana 45-3-138

December 2022

Page 138

On the identity of Arum montanum Roxb. and Alocasia gageana Engl. & K.Krause — two earlier names pertaining to Englerarum Nauheimer & P.C.Boyce (Araceae).

 

A. Hay, P.C. Boyce & K.Z. Hein

 

ABSTRACT

The long-misinterpreted Arum montanum Roxb. is shown to be a species of Englerarum Nauheimer & P.C.Boyce (Araceae–Aroideae). It is proposed that its originally stated Indian provenance is a mistake and that it more likely came from Myanmar, from where Englerarum is newly recorded here. The frequently misapplied name Alocasia gageana Engl. & K.Krause, based solely on an unpublished illustration of a cultivated plant from Myanmar, is also shown to belong in Englerarum. The new combination Englerarum montanum (Roxb.) P.C.Boyce, K.Z.Hein & A.Hay is made. Alocasia gageana, Englerarum hypnosum (J.T.Yin, Y.H.Wang & Z.F.Xu) Nauheimer & P.C.Boyce and Alocasia lihengiae C.L.Long & Q.Fang are placed in its synonymy. Arum montanum Roxb. is lectotypified.

 

KEYWORDS

William Roxburgh, India, Felix Carey, Myanmar, Aroideae, Englerarum montanum, Alocasia lihengiae.