EUPHORBIACEAE 



319 



Folium calcosum Rumph. to Melanolepis calcosa Miq., which is 

 also a synonym of Melanolepis multiglandulosa Reichb. f. & Zoll. 

 Hasskarl, Neue Schlussel (1866) 85, reduced Folium calcosum II 

 to Melanolepis multiglandulosa Reichb. f. & Zoll. 



In regard to the proper specific name for this widely distri- 

 buted and well-known species, I cannot follow J. Mueller in 

 calling it Mallotus moluccanus Muell.-Arg. or Pax and K. Hoff- 

 mann in calling it Melanolepis moluccana Pax & K. Hoffm., for 

 the reason that nothing in the Linnean description of Croton 

 moluccanus Linn., the name-bringing synonym, applies to this 

 species. It was based on two references ; the first, Fl. Zeyl. SJf.6, 

 and the second, Nux juglans moluccana bifida Burm. Fl. Zeyl. 

 170. The first reference, Fl. Zeyl. 36^, is Givotia rottleriformis 

 Griff., according to the actual specimens, leaves only, in Her- 

 mann's herbarium.* The second reference, from which Lin- 

 naeus took his specific name, is Aleurites moluccana (Linn.) 

 Willd. without the slightest doubt. The specimen in Linnaeus's 

 herbarium, quoted by J. Mueller, in DC. Prodr. 15 2 (1866) 958, 

 under Mallotus moluccanus Muell.-Arg., is manifestly not the 

 type and should be ignored in interpreting the Linnean species. 



MACARANGA Thouars 



MACARANGA MAPPA (Linn.) Muell.-Arg. in DC. Prodr. 15 2 (1866) 1000. 

 Ricinus mappa Linn, in Stickman Herb. Amb. (1754) 14, Amoen. Acad. 

 4 (1759) 124, Syst. ed. 10 (1759) 1277, Sp. PI. ed. 2 (1763) 1430 

 (type!). 



Acalypha mappa Willd. Sp. PI. 4 (1805) 526 (type!). 

 Mappa moluccana Spreng. Syst. 3 (1826) 878 (type!). 

 Tanarius mappa O. Ktze. Rev. Gen. PL 2 (1891) 620 (type!). 

 Folium mappae Rumph. Herb. Amb. 3: 172, t. 108. 



Amboina, Wae, Robinson PL Rumph. Amb. 361, November 26, 1913, in 

 light forest, altitude about 20 meters, locally known as hahuhun. 



Folium mappae Rumph. is the whole basis of Ricinus mappa 

 Linn., and thus typifies all the synonyms cited above, for Mappa 

 moluccana Spreng. is merely a new name for Ricinus mappa 

 Linn. Burman f., Lamarck, Poiret, Roxburgh, and Pritzel fol- 

 lowed Linnaeus in considering it as Ricinus mappa Linn., but 

 other authors have followed Willdenow and Sprengel and have 

 placed it under Acalypha and Mappa. 



Macaranga mappa (Linn.) Muell.-Arg. is an imperfectly 

 known species. In de Candolle's Prodromus 15 2 (1866) 1000 

 J. Mueller apparently compiled his description largely, if not 

 wholly, from Rumphius and erroneously reduced Croton grand- 



* See Trimen Fl. Ceyl. 4 (1898) 50. 



