154 NATURAL HISTORY OF PLANTS. 



which, with foTirteen genera of Enphorhiacecp^ includes the Box, 

 Pai^ayads, and StercuUa. Adanson ' also gives too great extent to his 

 Tithymalus, in including Clusia, Hernandia, Papaya, Polygala^ and 

 Cupania. A. L. Jussieu ^ reduced them a little, but still included 

 the Cucurhitaccœ, such as Sechhim. It was E. Brown who, in 

 1815,^ appears to have first given to this family the name of Euphor- 

 hiaceœ. Some years after, A. de Jussieu published a monograph* 

 which seems really very imperfect, but which was followed for a 

 long time by the botanists of that period, until the time when 

 Klotzsch took uj), in several of his works, ^ a rapid revision of the 

 Tricocceœ of Linnjeus, to which he added numerous genera, the 

 greater number without much value or which had already been 

 established imder other names by former authors. When we under- 

 took, in 1858, a ' G enteral Study of the Gi'oup Eu})horbiaceœ,'' we 

 found nearly two hundred and sixty genera preserved as valuable, 

 and reduced them to close upon two hundred. At the same time 

 we showed, in several successive publications, that the Box does 

 not belong to Euphorhiacece^^ that the families of Antidesmeœ ,^ Pu- 

 traujivece,^ and Scepacece,^ are not necesary, although they have been 

 described as distinct, and more or less separated fi-om the Euphor- 

 liaceœ, and that they ought to be united with them. Eiglit years later, 

 J. Mueller (d'Argovie), drawing up for Prodroinus,^° a description 

 of all the known Euphorbiaceœ, united a good number of genera that 

 we had preserved, divided several others, and enumerated one hundred 

 and ninety one genera, a dozen of which are insufficiently known. 

 Since this publication, J. Mueller proposed, in 1872, the genus 

 Pseudocroton " and elevated Adenophœdra to the raulv of a genus ; 

 Eaiilkoffer published the genus Paiisandra in 1870, i~ and we 

 made known the genus Piranhea in 1865,^^ DissiHaria of F. Muei^ler, 

 in 1867,'* and, quite recently, the genera Alphandia, Ramelia, Chori- 

 ceras, Bureavia, Cep/ialomappay Cocconerion, and Trisinffyne}^ 



' Fam. lies PI. ii. (1763), 346, Fam. 45. Soc. Bat. de Fr. iii. 285) ; Monogr. des Siixacées 



2 Gen. (1789), 384, Ord. 1. et liex Slijlocérées. Paris (1859). 

 3. In FUnd. Voy. 554; Misc. V'ork-s (ed. Benn.), ^ H. Bm. in Bull. Soc. Bot. de Fr. iv. 987. 



i. 28. 8 H. Bn. he. cit. 989. 



* Be Euphorbiacearum generibiis Ihdicisque ' jj jjj,^ ;„^_ ^jf gg3_ 

 eariimdem tin/nis Trntome». Paris (1824). '" XV. sect. ii. 1-1273. 



* In FHcy. Areh. i. 175, 250, t. 7-9 ; in Seem. " In Flora (1872). 

 Herald, Bot.; in PI. Meij. es. Act. Acad. Nat. Cur. is In Flora (1870). 

 xix. 412. — Kl. et Grcke. Linn. Nat. PJlanz. « In Adansmiia, vi. 

 Trieoec. (1860). H Ibid. vii. 



6 B..'BN.Surlarérif.Orffaiils.duBtiis{inBitll. i* Ibid. xi. (1873). 



