The bamboo continues common, as well as Pandanus, Pterocarpus marsupium, Bombax, Diospyros ebenum, which are the most common trees.
"Journals of Travels in Assam, Burma, Bhootan, Afghanistan and TheNeighbouring Countries" by William Griffith
The word 'marsupium' was what threw you off.
"The Boy With the U. S. Fisheries" by Francis Rolt-Wheeler
They do not support a marsupium.
"Dragons of the Air" by H. G. Seeley
MARSUPIUM, rudimentary, in male marsupials, i.
"The Descent of Man and Selection in Relation to Sex" by Charles Darwin
That there is more than one pouch makes a comparison with the mammary pouch rather than with the marsupium probable.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard
Marsupium or nursery-pocket, 161.
"Stories of the Universe: Animal Life" by B. Lindsay