6 MR. G. D. HAVILAND : REVISION OF THE NAUCLEES. 
Nauclea morindefolia, which it is not, as I shall show later on. 
Miquel describes Anthocephalus indicus three times, as A. mor- 
indafolius for Korthals, as A. Cadamba for Roxburgh, and as 
A. indicus for Richard; though the last description has been 
converted into that of Nauclea purpurea on the strength of 
Richard’s erroneous synonymy. The nearest plant to Anthoce- 
phalus indicus is Nauclea macrophylla, Roxb., which has probably 
not been examined since the days of Roxburgh; it is not a 
Nauclea as the genus is now known: either it must form a 
genus by itself, or the genus Anthocephalus must be modified to 
receive it. I propose to modify the genus Anthocephalus. 
Richard founded the genera Cephalidium and Breonia on 
Madagasear plants at the same time as he founded the genus 
Anthocephalus ; owing to his erroneous synonymy, Endlicher, 
Gen. Pl. 1393, reduced Cephalidium to Anthocephalus; but it 
was a Madagascar plant, and the type specimen, still in the Paris 
Herbarium, shows that it was a Breonia in fruit from which the 
bracts had fallen. Baillon wished to reduce Breonia to Sarco- 
cephalus, which it simulates in having the ovaries united; but 
these genera are quite distinct in stigma, in stipules, and in 
peduncles. 
Although Mitragyna is, with the exception of. Uncaria, the 
most distinct genus of the Tribe, it was not till 1839 that 
Korthals, ‘Obs. de Naucl. Ind.’, distinguished it from Nauclea. 
In Ver. Nat. Gesch., 1840, he substituted the name Stephegyne 
for that of Mitragyna: he gives Mitragyne, Korth., as a synonym, 
evidently by error for Mitragyna; the plate bears the name 
Mitragyna. Though Mitragyna is the older name, Korthals 
evidently wished it changed to Stephegyne. Mitragyne had been 
suggested as a better name than Mitrasacme by R.- Brown, 
Prod. 452, in 1810. Blanco founded the genus Mamboga on 
a Philippine species of Mitragyna in 1837. Thus Mamboga is, 
according to the rules of priority, preferable to Mitragyna ; but 
the genus was badly defined, and has never been accepted. 
CHARACTERS. 
The most constant character of the Tribe is the crowding of 
the flowers into heads ; this must introduce conditions different 
from those observed in most flowers, both in respect of protection 
from rain and insects and of danger from overcrowding. In 
