252 
Names of Species. 
Eemarks. 
Phaylopsis parrifiora Willd. 
Hygrophila qnadrivalvis Nees. 
95 Lippia geminata H. B. K. 
Hyptis brevipes Boit. 
Bcerhaavia repena Linn, 
Aerna lanata Juss. 
Achyranthes aspera Linn, 
100 Phyllanthns ■orinaria Linn, 
Monochoria vaginalis Fresl, 
Paspalum distichnm Linn, 
P. pedicellatum ITees, 
Panicum erucseforme Sihth, 
excnrrens Trin. 
P. longipes W. ^ A. 
P. myosnroides i?. Br. 
Imperata cylindrica Kunth, 
Eottboellia exaltata Linn, 
/■ 
Eare, on Eoss only (K.). 
Common in wet places along with Jussicea and 
Ludivigia. 
At Namuna ghat (K), rare. 
Common (K.). 
Not common and not met with by Mr. Kurz ; 
it may, however, be indigenous; it certainly 
seems to be so on Great Coco Island. 
Not very common. 
Very common in every part of the settlement 
and penetrating into the jungles. 
Common on Eoss and on Mt. Harriet; not so 
plentiful at Aberdeen. 
In ponds at Aberdeen ; perhaps introduced by 
means of wading-birds.* 
Common on Eoss and at Hopetown. 
Common on Eoss, not seen elsewhere. 
Aberdeen, common. 
By edge of pond at Aberdeen. 
On Mt. Harriet. 
Very common. 
Common everywhere. 
Common in marshy ground about Aberdeen 
and Haddo. 
* There is another species that has, however, been excluded from this list, be¬ 
cause neither Dr. King in 1890 nor the writer in 1889 met with it, to which the same 
remark applies. This species is Barclaya longifolia. The Andamans is first given 
as a locality for this species in King : Materials for a Flora of the Malayan Peninsula, 
p. 34. The Andamans specimens were obtained by one of Dr. King’s garden col¬ 
lectors in 1884 in a ditch among rice-fields near Haddo. It may be said with some¬ 
thing like certainty that the species was not there in 1858 ; at all events there was 
no rice-field and no ditch then. And it is almost as certain that it was not present 
m 1866, for Mr. Kurz, as his Report shews, gave particular attention to aquatic 
vegetation, yet he did not meet with it. Probably the ditch where Dr. King’s 
collector found Barclaya, like the pond where the writer found Monoohoria and 
Ceratopteris, did not exist at all in 1886. Another circumstance that tends to con¬ 
firm the idea of the introduction being recent is that it does not appear to be 
present in any of the ditches or ponds examined by the writer in 1889, and Dr. King, 
to whom this fact was particularly mentioned, and who looked for Barclaya with 
especial care in 1890, was equally unsuccessful in his search. It may, therefore, be 
safely presumed to be still quite local. For the appearance of Barclaya, as for 
that of Monochoria, bird-agency at once suggests itself; introduction by indirect 
human agency is not, however, precluded in either case. Allowing the mode of 
introduction to be a point altogether doubtful, there still remains an interesting 
fact—this species (like Desmodium auricomum) is one hitherto only known from the 
opposite shores of the Andaman Sea. And this fact weakens the evidence from 
other sources as to introduction ; for it is the Burmese, and particularly the Pegu- 
Tenasserim element, that seems to predominate in the indigenous Andaman fiora 
42 
