MR. G. BENT HAM ON EITPHORBIACE.E. 225 



Telogyne of Mueller, differing from Eutrigonostemon in the anthers 

 5 instead of 3 ; and Pycnanthera, for Mueller's Eutrigonostemon 

 § 1, in which the racemes are terminal, and the three anthers are 

 adnate on the top of the column, with the cells transverse in one 

 species, radiating in the other. Of the other sections included 

 by Mueller in the genus, Cheilosopsis has the anthers in 2 or 3 

 series, and all the other characters of Ostodes ; and, indeed, Trigo- 

 nostemon zeylanicus, Muell. Arg., is evidently specifically identical 

 with Ostodes minor, Muell. Arg. Tritaxis including Anisotaxis, and 

 Bimorphocalyx, are restored to the rank of distinct genera. One 

 species, Trigonostachys Icevigatus, Muell. Arg., is very anomalous, 

 differing from the genus in habit, inflorescence, and stamens, and 

 is probably sui generis ; but the females are unknown, and there- 

 fore it cannot be safely established as distinct. 2. Paracroton, a 

 single Javan species, with terminal pendulous racemes of 2 or 3 

 feet, is unknown to me ; but, from the character given, it would 

 belong to the present group, differing from all other Euphorbiaceae, 

 except Galearia, in the seeds broader than long. 3. Ostodes, 

 4 or 5 species from East India and the Malayan archipelago, in- 

 cluding Mueller's section Cheilosopsis of Trigonostemon, and proba- 

 bly Fahrenheitia of Zollinger. Among Mueller's species, however, 

 O. Helferi from Moulmeyn, forming his section Geloniastrum, 

 is unknown to me, and, with its flowers in axillary clusters and 

 anthers opening outwards, can scarcely be a congener. We have 

 a Malayan plant from Maingay with the inflorescence as described 

 in O. Helferi ; but the anthers open inwards, and, having no female, 

 the genus cannot be determined. 4. Codiceum, a most unnatural 

 and heteromorphous genus as variously extended by Mueller and 

 by Baillon ; but if reduced to the section Eucodiczum, it forms a 

 natural and well-defined group of about 4 species, extending over 

 the Malayan archipelago, tropical Australia, and the South Pacific 

 islands. All have slender axillary racemes, a small appressed male 

 calyx, very short petals in the males, deficient in the females, the 

 receptacle in the male flower scarcely raised, the styles slender and 

 undivided, with other minor distinctive characters. Of Mueller's 

 sections, we adopt Blachia and Baloghia as distinct genera, and 

 refer Tylosepalum to Trigonostemon, as far as we can judge from 

 imperfect specimens. 5. Baloghia, including Steigeria of Mueller 

 as extended by Baillon in the 11th vol. of his ' Adansonia,' now 

 comprises about 9 New-Caledonian species, one of which is also 

 in Norfolk Island and Australia. They all differ from Codiaum, 



