40 G. King — Materials for a Flora of the Malay Peninsula. [No. 1, 



1. Gananga sylvestris prima sive trifoliata (Malaice Oetan). 



2. Gananga sglvestris secunda sive angustifolia. 



3. Gananga sylvestris tertia sive latifolia. 



Of the first two Rumphius gives figures on t. 66 of the same volume ; 

 and judging from these figures, the plants fall into the modei'n genus 

 Polyalthia. 



Linnaeus' Species Plantarum was published in 1753, therefore 

 Rumphius' names are in point of time, as they are in point of form, pre- 

 Linnasan. Linnaeus does not accept Gananga aa a genus and he refers 

 to the Gananga of Rumphius only in a note under TJvaria Zeylauica. 

 And the first botanists to adopt the Gananga of Rumphius as a genus 

 are Hook. fil. and Thomson (in ¥1. Ind. 130). But in 1775 Aublet (in 

 his Histoire des Plantes de la Guiane Francaise,) published, in regular 

 Linnaean fashion, the genus Gananga for the reception of a single species 

 named G. ouregow of which he gave a figui'e (t. 244). Nineteen years 

 later (1794) Ruiz and Pa von, (in their Prodromus Flora} Peruviana} 

 et Chilensis,) published under the name of Guatteria a genus with 

 exactly the same characters as Aublet's Gananga. Unless therefore 

 Hook f . and Thomson are right in making a special case in establishing, 

 as a genus in the Liunaean sense, the Gananga of Rumphius, Aublet's 

 genus Gananga must stand, and to it must be relegated all the American 

 species referred to Ruiz and Pavon's genus Guatteria. Authorities vary 

 in their treatment of the Gananga of Rumphius. Dunal (in his Mono- 

 graphie de la famille des Anonacees) pronounces for the suppression of 

 Aublet's Gananga in favour of that of Rumphius who, he incorrectly 

 says, assigned two species to it ; the fact being as already shown, that 

 Rumphius divided Cananga into (a) cultivated (with one sort) and 

 (b) wild (sylvestres) with three sorts. Dunal (and I think wrongby) 

 refers all the Gananga of Rumphius to Unona. In their Genera Planta- 

 rum, Mr. Bentham and Sir J. D. Hooker retain the Gananga of Rum- 

 phius and reduce Gananga of Aublet to Guatteria. Baillon, on the other 

 hand, retains the Gananga of Aublet as a genus, and to it refers all the 

 S. American species of Guatteria. He reduces Gananga odorata H. f. 

 and Th. to Unona and, altering the termination of its generic name, he 

 makes it a section of Unona under the sectional title of Ganangium. 

 The grounds for separating Gananga from Unona as a genus are thus 

 stated by the authors of the Flora Indica. " In habit and general appear- 

 ance this genus closely resembles Unona ; but the indefinite ovules pre- 

 vent its being referred to that genus. The peculiar stamen (with a 

 lono- conical apical point) and the seeds are themselves, we think, suffi- 

 cient to justify us in distinguishing it as a genus." The simplest 

 solution of the synonymic knot, and one for which there is some justi- 



