224 MK. G. BENTHAM OK EUPHOKBIACE^E. 



Subtribe 3. Chbozophobe^:. I have here included all the 

 petaliferous genera of Crotone® which have neither the cymose 

 panicle of Jatrophese nor the peculiar stamens of Eucrotonese. 

 The inflorescence is usually in simple or paniculately branched 

 axillary spikes or racemes, the males clustered or singly inserted, 

 the females usually singly inserted along the rhachis ; occasionally, 

 however, the racemes are terminal, or the male clusters are loose 

 and cymulose ; and very rarely the inflorescences are reduced to 

 sessile axillary clusters or cymules. The 24 genera may for 

 practical convenience be distributed into three or four subordi- 

 nate groups, which, however, must not be considered absolute 

 expressions of natural affinities. 



We have, first, four genera remarkable for the consolidation of 

 the petals in the male flowers into a single lobed corolla. Mueller, 

 it is true, believes them not to be really consolidated, but only 

 cohering and separable ; and he may be right theoretically ; hut 

 practically, here as in the section Ourcas of Jatroplia, they are 

 quite united, and at least in Hanniophyton and Pausandra cannot 

 be separated without tearing. In the corresponding females the 

 petals are free, and the character may be rather a convenient 

 technical than a really natural one. The genera, all well-defined 

 and requiring no comment, are: — 1. Givotia, a single East-Indian 

 species ; 2. Picinodendron, a single tropical African species, nrs 

 described as a species of Jatropha, to which genus it appears to 

 me not to have the slightest resemblance, but in which it is inad- 

 vertently retained in the ' Prodromus,' though repeated as an in- 

 dependent genus ; 3. ManniopJigton, 3 or 4 tropical African species, 

 including an unpublished one from Schweinfurtb's collection ; and 

 4. Pausandra^ a single tropical American species. 



A series of ten genera have the inflorescence in axillary or 

 sometimes terminal racemes or spikes, sometimes very long, some- 

 times quite short and few-flowered, the male calyx with imbricate 

 divisions or open and shortly lobed or toothed, the petals free in 

 both sexes. These genera have been variously intermixed uy 

 Mueller or by Baillon, but appear to me to be reducible to natural 

 and fairly defined limits. 1. Trigonostemon, which I would limit 

 to about ten species from East India and the Malayan archipe- 

 lago, all with 3 or 5 anthers sessile round the apex of thestarainal 

 column, and which may be distributed into 3 sections : — Eutrigono- 

 stemon, including Mueller's Eutrigonostemon § 2 and Stlvaa, with 

 axillary racemes and the three anthers erect and usually bind , 



