Fossil Flora from Pagan — Fosberg AND Corwin 
13 
Fig. 12. Aglaia mariannensis, impression on right, base of large leaflet, that on left, possibly one of smaller 
leaflets. Elaeocarpus jo ga, impression in center, leaf blade and petiole. 
THEACEAE 
? Eurya nitida Korth. 
PC-79-10 
Two fragmentary leaf impressions, not pos- 
itively identifiable. Only bases, with some 
obscure venation, and rather curious minute 
surface marking are available. Eurya seems 
the most likely identity. 
This is a small-leafed shrub or small tree, 
characteristic of volcanic soils and frequently 
found isolated or in small thickets in sword- 
grass areas. It has been reported from Pagan 
by Hosokawa as Eurya ladronica Hosokawa. 
VERBENACEAE 
Premna obtusi folia R. Br. 
PC-86-1 
A good leaf impression with venation 
rather clearly shown but lacking the apex 
(Fig. 14). It is much smaller than the average 
for this species but matches well enough 
some of the smallest leaves present on avail- 
able herbarium material. The angle of diver- 
gence of the main veins is so wide as to 
preclude its belonging to most of the other 
Micronesian species with palmate venation, 
the only possibilities being Thespesia populnea 
(L.) Sol. ex Correa, which it does not resemble 
in other characteristics and which is rarely so 
small, and Sida fallax Walp., which has never 
been reported from the Marianas. 
Premna obtusifolia is a very common tree 
throughout the Marianas, including Pagan, 
growing in thickets or secondary growth as 
well as in original forest. The species is vari- 
able and extends over much of the Indo- 
Pacific region. It has been given various 
names, the one most commonly used for 
Marianas material being Premna gaudichaudii 
Schauer. 
