MR. G. D. HAVILAND: REVISION OF THE NAUCLEESR. 15 
Malasia; Sarcocephalus esculentus stretches across Africa north 
of the Equator; Sarcocephalus missionis occupies India; and 
Sarcocephalus Maingayi occupies Borneo and Malpina. Sarco- 
cephalus cordatus has a peculiar distribution. It is found in 
Ceylon, but not in India; it is common in the forests of Burmah 
in two forms—the one glabrous and the other pubescent; but 
I have seen no specimen from Malpina, south of Mergui, nor 
from Borneo, and only one doubtful specimen, not in flower, 
from Sumatra. It occurs in Cochin China, in the Philippines, 
and in Celebes; but in the latter islands it is always glabrous 
and graduates into a much larger form, S. glaberrimus. In Java 
it is common and probably always glabrous; specimens from 
Ceylon, Burmah, and Java can generally be distinguished from 
one another, occasionally the Javan specimens resemble those 
from the Philippines. The species also occurs in Australia, and 
the Australian specimens resemble the Javan ones, but the leaves 
are more often longer and with more numerous nerves. In the 
Moluecas and in New Guinea forms occur with large leaves and 
14 pairs of nerves ; some of the Molucca specimens are glabrous 
and some pubescent. 
The plants allied to S. subditus are distributed all over 
Malasia, and extend into Cochin China and New Guinea ; they 
exhibit local differences and do not fall readily into species. 
In habit they approach somewhat to the Malayan species of the 
genus Nauclea. 
The genera Cephalanthus, Adina, Nauclea, and Breonia 
together have as wide a distribution as the Tribe. The genus 
Breonia consists of several species from Madagascar. In the 
Paris Herbarium there isa specimen labelled * Isle de France, 
Commerson," and another labelled “ Guiane française ( ? ).” 
Whilst, then, the occurrence of the genus in Mauritius is almost 
certain, and in Africa must be considered doubtful, it is prob- 
able that there are several unknown species still to be found 
in Madagascar. Baillon wished to reduce the genus to Sarco- 
cephalus on account of the ovaries being inseparably united. 
But it is a natural genus; it differs from Sarcocephalus in the 
stigma, which is clavate and not spindle-shaped, in the peduncles, 
which are not terminal but axillary and flattened as in many 
kinds of Nauclea, and in the bracts, which are seated near the 
top of the peduncle and enclose. the flower-head in bud. The 
stipules, too, are subtriangular and more or less folded. 
