XMLTable - 65535 limit on rows returned

Hi,
I've come across a problem with the Oracle XMLTable command as follows:
- I have an XML doc (approx 30Mb) which contains 79k entries
- I have this referenced in Oracle as a BFile
- If I count the number of rows returned by the XMLTable command it does not equal 79k - instead the number is 79k - 65535
Is there a limit on the number of rows XMLTable can handle (ie. < 2 ^ 16) or am I missing something?
declare
xbfile BFILE;
res BOOLEAN;
countrows number;
begin
xbfile := bfilename('XML_DIR', 'test.xml');
res := DBMS_XDB.createResource('/public/test.xml', xbfile);
select count(*) into countrows from XMLTable('for $i in doc("/public/test.xml") return $i/ROWSET/ROW'
columns ID INTEGER);
dbms_output.put_line('count=' || countrows);
end;

SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
PL/SQL Release 11.1.0.6.0 - Production
CORE    11.1.0.6.0      Production
TNS for 32-bit Windows: Version 11.1.0.6.0 - Production
NLSRTL Version 11.1.0.6.0 - Production
5 rows selected.
SQL> set autotrace on
SQL> select count(*)
2 from xmltable( '$d/ROWSET/ROW'
3               passing xmltype( cursor( select rownum from dual connect by level <= 70000 ) ) as "d"
4               columns rnum integer path 'ROWNUM'
5               )
6 /
COUNT(*)
    70000
1 row selected.
Execution Plan
Plan hash value: 1051571446
| Id | Operation                            | Name                   | Rows | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT                     |                        |     1 |    29   (0)| 00:00:01 |
|   1 | SORT AGGREGATE                      |                        |     1 |            |          |
|   2 |   VIEW                               |                        | 8168 |    29   (0)| 00:00:01 |
|   3 |    VIEW                              |                        | 8168 |    29   (0)| 00:00:01 |
|   4 |     COLLECTION ITERATOR PICKLER FETCH| XMLSEQUENCEFROMXMLTYPE |       |            |          |
Statistics
      70005 recursive calls
     148263 db block gets
      30391 consistent gets
          0 physical reads
          0 redo size
        411 bytes sent via SQL*Net to client
        385 bytes received via SQL*Net from client
          2 SQL*Net roundtrips to/from client
          1 sorts (memory)
          0 sorts (disk)
          1 rows processed

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