252 D. Prain — The non-indigenous species of the Andaman Flora. [No. 3, 



Names of Species. 



Remarks. 



95 



Phaylopsis parviflora Willd. 

 Hygrophila quadrivalvis Nees. 



K. 



Lippia geminata H. B 

 Hyptis brevipes Foit. 

 Bcerhaavia repens Linn. 



Aerua lanata .Jttss. 

 Achyranthes aspera Linn. 



100 Phyllanthns urinaria Linn. 



Monochoria vaginalis Fresl. 



Paspalnm disticliuna Linn. 

 P. pedicellatum Nees. 

 Panicum erucseforme Sihth. 

 P. excurrens Trin. 

 P. longipes W. of A. 

 P. myosuroides B. Br. 

 Imperata cylindrica Kunth. 

 Kottbcellia exaltata Linn. 



105 



Rare, on Ross only (K.). 



Common in wet j)laces along with Jussioea and 



Ludwigia. 

 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 Ross and on Mt. Harriet ; not so 



plentiful at Aberdeen. 

 In jDonds at Aberdeen ; perhaps introduced by 



means of wading-birds.* 

 Common on Ross and at Hopetown. 

 Common on Ross, not seen elscAvhere. 

 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 exclnded from this list, be- 

 cause neither Dr. King in 1890 nor the wx'iter 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 

 in 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 Monochoria 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 flora. 



