Tinantia erecta

 
Upright Spiderwort, Widow's tears
 

 
https://08511630493324166816.googlegroups.com/attach/76f0ccaa60ec7257/Mussoorie-Commelinaceae.JPG?part=0.1&view=1&vt=ANaJVrFHW-mgalbnPqp9PdcpAcnDsaqZymIJxEWIJDKMrnOWXr2oO89qJ7J4V-8wGmjFzsr7B68JuiZSd7bQEIeXSWHkFI7TRxSYbHBVzZSRBthYlLPVzvw
https://08511630493324166816.googlegroups.com/attach/76f0ccaa60ec7257/Mussoorie-Commelinaceae%20(1).JPG?part=0.2&view=1&vt=ANaJVrGpmBSTqWYb0s1Jk1csZCXiz7-FL-XNbDy_Kt4wx6_-ouYqlDC_w2qNai79Wq_EnErrmMIVyZ5S5CvBscaq6Wlf0S0sS_k_-ecHrMFEq63S9WQtTEk

https://08511630493324166816.googlegroups.com/attach/76f0ccaa60ec7257/Mussoorie-Commelinaceae%20(5).JPG?part=0.6&view=1&vt=ANaJVrGnZGtcgrWj8lxppSHi4UJrzKH_6qvYH7-8hJIKKez9yKPhQRILpBhmQ4nKPUc2uK6Pp_44zanoxpWPILUoHefOwTpq13L5ELxTFX8M-FUqtZCUEIk
Herb For id from Dehradun-Mussoorie Road: This herb was shot from Dehradun-Mussoorie road in September 2010 and for me this can be any Commelinaceae member. I know and regret for bad quality pics, but still hope to find id as the flower colour looks quite unusual to me.
It was raining badly that day, I could not get any better pics of this. I hope I can get clue up to Genus level, if not species. 
... thank you for sharing such a beautiful Tricarpelema J. K. Morton and your guess is right, this is Commelinaceae member.
Exactly could not say the species, because this genus having great diversity in NE India,.
Total 8 species, only 1 species was found in Africa while remaining 8 are distributed through NE India to the Philippines and Borneo.
I am taking my words back ... and all..........
This could be Tinantia erecta . Family- Commelinaceae
This looks like Tinantia erecta, a genus new to me...thanks for your efforts..

  
 
References:
Comments