414 NATURAL HISTORY OF PLANTS. 



thirty-four in the most complete work on the family by Planchox 

 and Teiana ^ published in 1861 and 1862. These authors, who based 

 the classification of the Glusiacece on the conformation of the embryo, 

 added thereto twelve new genera, seven named by themselves : 

 Oxystemonj Polythecandra, Balboa^ (Edernatopus, HavetiopsiSy ClusU 

 ella, and Pilosperma,^ and those previously proposed : Arrudea by 

 Cambessedes, Androstylium by Miquel, Discostigma by Hasskarl, 

 Montr ouzeria by Pang her, and in addition the old genus Tour alia of 

 AuBLET and his Qidina which, some years previously, Tolasxe^ had 

 referred to this family. In 1862 Bentham and Hooker* reduced 

 the number of genera to twenty-four, by referring to other types 

 Arrudea^ Oxystemon, Androstylmm^ Gochlantliera^ CEdematopus, 

 Tovomitopsis, Discostigma^ and Touralia. After them Oliver united 

 Galysaccion to Ochrocarpus ^ and created the abnormal genus Allan- 

 hlaclda.^ As Galysaccion had been included in Mammea by Plan- 

 CHON and Triana, the total number was then twenty-five. Hooker^ 

 joined to it PceciloneuroUj formerly considered a Ternstroemiacea.^ 

 By uniting Beuggeria, Beugifa, HavetiopsiSj (EdematopuSj and Balboa^ 

 to the true Quapoya, and by referring Xanthochymus, as a simple 

 section,'" to Garcinia, we have reduced the number of genei-a to be 

 retained to twenty -two, and we have indicated the possibility of a 

 still greater reduction by showing how little importance can be 

 attached to the characters by which the genera of the Symphonia 

 series are distinguished from each other. 



Tlie number of species known may be estimated at two hundred 

 and fifty ; they all belong to the warm countries of the globe and 

 scarcely if at all cross the northern tropic. In I^orth America they 

 are found only in the warmest parts of Mexico. Of the twenty-two 

 genera, eleven belong to America, viz. : those of the Glusia series, 

 Moronobea and Platonia, Mammea and Quiina. Three genera, 

 Mesua, Kayea, Pceciloneuron^ are exclusively Asiatic. Pentadesma 

 and Allanblaclcia are from tropical western Africa ; Montrouzeria, 

 from 'New Caledonia. Symphonia, Galophyllum, and Bheedia, are 



1 Bull. Soc. Bot. de Fr. viii. 26, 66 ; Ann. Sc. ^ FL Trop. Afr. i. 169 (1868). 

 Nat. ser. 4, xiii. 306; xiv. 226; xv. 240; xvi. ^ B. H. Gen. 980 (1867). 

 263. 7 FL Brit. Ind. i. 278 (1874). 



2 These two latter, several essential organs of ® See vol. iv. p. 261. 

 which are imperfectly known, are only doubt- ^ Bull. Soc. Linn. Par. 77. 



fully admitted. lo Following the example of Ivurz {Jouin. .is. 



^ Ann. Sc. Nat. ser. 3, xi. 156. iSoc. Beng. xxxvii. 64) and J. Hooker {oj). cit. 



■^ Gen. 167, 980, Ord. 27. 259). 



