8 
PACIFIC SCIENCE, VoL XII, January, 1958 
The veins, except the midrib, are of about 
equal strength (Fig. 5). 
The tree trunk molds seen probably also 
belong here. 
This tree is very common on the Marianas, 
including Pagan, and is found throughout 
the tropical Pacific islands, mostly at low 
altitudes. It is an important component of 
many forests and is also found scattered in 
grasslands. Its frequency in this collection 
Fig. 4. ? Freycinetia mariannensis , portion of central 
section of leaf, showing venation. 
Pandanus tectorius Park. 
and Agrigan. It has relatives throughout the 
Indo-Pacific region. It grows in woods and 
ravines and is a liana climbing on trees and 
rocks. 
(P. fragrans Gaud., P. Kafu Mart.) 
PC-79-3 (a-h), PC-79-2 (?), PC-86-4 (a-f), 
PC-43-4 (a-d), PC-43-10, PC-43-11 (a-c) 
(?), ID2 (F)-6 (?), ID 2 (F)-2 . 
Abundant fragmentary leaf impressions, 
many of them showing venation, many show- 
ing characteristic plications, some showing 
curled margins characteristic of dried leaves 
(as found under the trees), and several rep- 
resenting the narrow prolonged part near tip. 
Numbers PC-43-11 and ID2 (F)-6 seem to be 
fragments of the enlarged curved bases of the 
leaves, but this identification is not certain. 
Number PC-79-2 seems to be a fragment of an 
impression of a fruit of this species. This also 
is not certain. Margins have not been pre- 
served in good condition in any of the mate- 
rial. The veins are generally more crowded 
especially near the margins, than in Freycinetia , 
varying from about 17 to 26 per cm. depending 
on the position in the leaf and are closer to- 
gether toward the apex and near the margins. 
Fig. 5. Pandanus tectorius , portion of central section 
of leaf. 
could be due both to its abundance and to 
the hard stiff leaves that lend themselves to 
preservation as impressions. 
GRAMINEAE 
Miscanthus floridulus (Labill.) Warb. i 
PC-43-6 (a-p), PC-43-7 (?), PC-43-8, PC- 
43-9 (a-b), PC-48, PC-79-7 (a-e), PC-79-8 
(a-b), PC-84-1 (a-d), PC-85-4 (a-d), PC- 
36-5, ID2 (F)-l (a-k), ID3i-l 
