1890.] D. Prain — The non-indigenous species of the Andaman Flora. 251 



Names of Species, 



llEMARKS. 



Smithia sensitiva Linn. 

 Desmodium polycarpon DO. 



D. anricomum Grah. 



Alysicarpus vaginalis DO. 

 70 Cassia occidentalis Linn. 

 C. Tora Linn. 



Ammannia baccifera Linn. 

 Jussiaea suffruticosa Lamk. 



Ludwigia parviflora Roxh. 



75 Hydrocotyle asiatica Linn. 



Oldenlandia diffusa Boxh. 

 O. crystallina Linn. 



O. paniculata Linn. ; forma 

 * minima ' = Hedyotis minima 

 Bnrm. 



Adenostemma viscosum Forst. 



80 Blamea glomerata DO. 



Wedelia calendnlacea Less. 

 Cosmos sulphurous Oav. 



Tridax procumbens Linn. 



Crepis japonica Benth. 

 85 Sonchus arvensis Linn. 

 Launea nudicaulis Less. 

 Ipomcea aquatica Forsk. 



Solanum f erox Linn. 

 S. indicum Linn. 



90 Physalis minima Linn. 

 Striga lutea Lour. 



Sesamum indicum DC. 



33 



Common on dry grassy slopes at Aberdeen. 



Common at North Bay and on the cleared hill- 

 sides above. Not met with by Mr. Kurz, but, 

 perhaps, it may be indigenous for it also 

 occurs on Great Coco Island and Barren Island. 



Common along with Smithia and with Desmo- 

 dium trifiorum. It is rather an interesting 

 addition to the Flora, for though a mere weed 

 this plant has hitherto only been collected in 

 Tenasserim, Martaban and Arracan. 



Common on grassy slopes (K.) 



Common (K.). 



Very common everywhere. 



In wet places, not uncommon. 



In wet places, along with the two Ludwigias and 

 much more plentiful than either. 



Common in ricefields, but not quite so frequent 

 as L. prostrata. 



Common on stone walls and roadsides all over 

 lloss Island, but not yet present on the main- 

 land or on the other islands. 



Aberdeen etc., not very common. 



The commonest Oldenlandia on Ross Island. 

 The commonest both at Aberdeen and on 

 Mt. Harriet is 0. corymbosa. 



Common on Ross Island and obtained both by 

 the writer in 1889 and by Dr. King in 1890. 



Only met with in one place on a rubbish heap 

 Ross Island. 



Common on Ross Island, etc., (K.). 



Ross Island only (K.) 



Very common on hill sides and waste places. 

 This the writer was assured had never been 

 grown as a garden plant. It forms large 

 patches where it occurs, the individual plants 

 being 6 to 10 feet in height. 



Common on Ross, not yet common on the 

 mainland. 



Introduced at Aberdeen (K.). 



Common in gravel pits on Mt. Harriet. 



Both on Ross and at Aberdeen (K.j. 



In ponds at Aberdeen ; the mode of introduc- 

 tion of this species is open to question. It 

 •,.ay have been inti-oduced by birds, but it 

 may equally well have been introduced as 

 a weed. 



Very common all over the settlement on drier 

 hill sides along with S. torvum. 



Quite as common as the preceding. [*S. nigrum 

 and S. xanthocarpum, though introduced be- 

 fore 1866, are by no means so frequent] 



Not at all common. 



Oommou on dry hill sides at Aberdeen, parasi- 

 tic on introduced grasses. 



Frequent (K.). 



