349 



in ri(.-L* lields and nurseries . . . . . . 17 



in niltber ]>lantations (grass weeded or weedy) 38 



in ta])ioc'a crops . . . . . . . . 3 



about liouses in villages (kam])ong land) . . 14 



on grass pastures . . . . . . . . 8 



on roadsides which are chiefly like pastures . . 10 

 on the railway enil)ankments which are chiefly 



in lallang . . . . . . . . . . 2 



in lallang waste land . . . . . / . . 38 



in lallang tiirniug to scrub (belukar ) . . . . 1 



in pasture turning to scrub (belukar) . . 1 



in scrul) (belukar) .. ., .. .. 8 



P. C. Cowlky-Bkowx 



T. H. BURKTLL. 



ORCHID NOTES 



TlIECOSTELE SECUXDA, ElDL. 



'I'he flower ot this orchid was described in the Bulletin on p, 

 318. To that description it appears well to add the annexed 

 figures, and a note on the mechanism as regards pollination by 

 insects. 



Thecostele secunda, — flowers, x -> from in front. 



A visiting insect should settle on the lip and be of such 

 weight as to depress it on the hinge marked in the sectional draw- 

 ing. When the lip is depressed, a way is opened to the abundant 

 honey through the groove over the centre of the crest. Just under 

 this groove is a yellow spot as described on p. 318. When tke 

 weight of the insect is removed the lip returns to the position in 

 which it was, closing the road to the honey again. The part of 

 the lip fitting over the mouth is furnished with hairs such as 

 would prevent small insects from entering the honey-cavity. 



