232 MR. G. BEKTHA.M OX EUPHOKBTACE^. 



nogyne under the section Eualchornea. 9. Alchorneopsis, 2 tro- 

 pical American species or varieties, very closely resembling a 

 true Alchornea of the same region, with the only ascertained dif- 

 ference of the development of a rudimentary pistil in the centre 

 of the male flower. Baillon in his ' Histoire des Plantes ' 

 reduces it doubtfully to Alchornea ; but it is scarcely safe to do so 

 until the ripe fruit is known, as in the young state it is globular 

 and seems very fleshy. 10. Lepidoturus, two African and one 

 Madagascar species, very near Alchornea ; but the male spikes 

 are simple, with very prominent concave scarious bracts under the 

 clusters, imbricate in the young state but persistent throughout 

 the flowering, giving the spikes the aspect of catkins ; whilst in 

 Alchornea and its nearest allies the bracts are minute or quite 

 inconspicuous. Mueller also describes the seeds as strophiolate 

 in Lepidoturus, and without any strophiole in Alchornea, but this 

 requires further verification. 11. Conceveiba, a tropical American 

 genus, very well characterized both in the males and the females, 

 if limited to the three typical species, C. guyanensis, C. Host- 

 mannij and C. latifolia. Of the others, added by Mueller, he has 

 since correctly transferred C. megalophylla and C. Martiana to 

 Alchornea ; C. africana is a species of Neoboutonia ; and C. termi- 

 nalis is 12. Gavarretia of Baillon, consisting of two tropical 

 American species, resembling Conceveiba in the very coriaceous 

 foliage, but with neither the infloresence nor the female flowers 

 of that genus ; and the male flowers are as yet unknown. 13. 

 Lasiocroton, a single Jamaican species, so closely resembling 

 Mallotus in habit and character that I should have had no hesi- 

 tation in reducing it to that genus were it not for its distant 

 geographical position, accompanied by some slight differences in 

 other respects which, if the plant were Asiatic, would be set down 

 as specific only. 14. Neoboutonia, a well-defined African genus 

 of two species, only slightly differing from each other, chiefly in 

 indumentum, though one is entered in the ' Prodromus' as Neo- 

 boutonia, and the other as a species of Conceveiba, of which it 

 has none of the special characters. 15. Ccelodiscus, 4 Indian or 

 Malayan species, slightly differing from Mallotus in the broad 

 central disk of the male flowers. 16. Podadenia, a Ceylon species 

 reduced by Baillon to Mallotus, but sufficiently distinguished as 

 well by the long pointed connective of the anthers as by the large 

 fleshy indehiscent fruit, covered with peculiar stipitate glands. 

 17. Trewia, a well-known East-Indian genus of which two species 



