Plants with white flowers

I have three plants that I love and would like to identify. The first one has tiny 5 petal flowers, the second one is made up of mostly white leaves, or are these considered flowers?, and the third one is has these flower bunches that are made up of several tiny orange flowers, and one white leaf per bunch. Thanks for any help you can give me with these!

 

1. Pentas lanceolata?

 

Last one can be Mussaenda.

 

umm... I dont think 1st one is Pentas lanceolata

 

First one is pentas lanceolata. Good job. The last one, however, does not seem to be mussaenda. Thanks!!!

 

#2 Might be Alternanthera ficoidea ‘Sessilis Alba or a variegated Chili Pepper
http://www.pbase.com/chiles400/image/46561506.jpg

HTH
Chris

 

Hm...
http://www.botanypictures.com/plantimages/mussaenda%20pubescens%2004%20menglun%20xtbg%20med.jpg

 

That picture of the mussaenda does match exactly! Thanks.