470 
ROBINSON. 
Old World; Pouzolzia and Fleurya; one of our species of the latter has 
somewhat the appearance of an introduced plant, but is of wide distribu- 
tion from Abyssinia to Polynesia, the other seems not to go west of Java, 
and so far as our collections show, barely gets into ; the Philippines in the 
islands nearest to Borneo. Our species of Pouzolzia are certainly indige- 
nous, one has a wide Indo-Malayan distribution, a second seems identical 
with a Javan species, the others are endemic, one with no near allies, the 
other nearest to one of Java. The other genera are confined to the Old 
World, and are mainly tropical, Pellionia , Procris, Oreocnide, and De- 
dreg easia extending to Japan. However, in the three first, the species 
are Malayan or with their nearest affinities Malayan : in the last, our 
only species has hitherto been identified with D. longifolia (Burm.) 
Wedd., ranging from India to Java, but seems more closely allied to the 
J apanese D. edulis Wedd. Lecanthm and Elatostema range from western 
Africa to Polynesia, our one species of the former being known with 
certainty only from India and China: the latter is our richest genus in 
point of species, some appearing very distinct, several others closely 
allied to E. sessile Forst., originally described from the Society Islands, 
but with nearly related or possibly identical forms distributed through- 
out the range of the genus : in other cases the affinities are distinctly 
Indian, in yet others Malayan : two species seem to be confined to the Phil- 
ippines and Formosa. Pipturus extends from Mauritius to Polynesia, 
but our species have peculiar features. P. argenteus (Forst.) Wedd., with 
a range from Java to Queensland and Tahiti is found only in the extreme 
southwestern Philippines; another of our species has in it its closest 
ally, but not a near one; P. ardorescens, which is far our commonest 
species, is otherwise known only from. Borneo, and with a very local ally is 
very distinct from all others of the genus except P. aldidus (ITook. & 
Arn.) Wedd., of the Hawaiian Islands; another is considered identical 
with a Javan species, and is the probable ancestor of the sixth. Gonos- 
tegia ( Memorialis ) has 4 species, one extending from India to Australia, 
a second Indo-Malayan, a third is doubtfully identified with an Indian 
species, the last seems quite distinct. Two other genera extend to India, 
Distemon, monotypic, hitherto known only from that country and Java, 
and Maoutia, ranging to Tahiti. Leucosyke until its recent report from 
Formosa was supposed to find its most northern distribution in the 
Philippines, where one of its species is very common and identical with 
one of wide Malayan distribution ; it is also the probable ancestor of the 
remainder with one exception, L. nivea, which is allied to L. candidissima 
of Java. The genus Gypholophus finds its greatest extension to the east 
and southeast of the Philippines, our only species extending to the west 
being that which is very much the most common here. There remain 
the two genera here segregated, Elatostematoides which is probably 
throughout -Malaya, and Astrothalamus, known also from Borneo and the 
Mariannes. 
