Plant one: http://www.botanicalgarden.ubc.ca/forums/attachment.php?attachmentid=97249&stc=1&d=1322992695 2:http://www.botanicalgarden.ubc.ca/forums/attachment.php?attachmentid=97250&stc=1&d=1322992695 3:http://www.botanicalgarden.ubc.ca/forums/attachment.php?attachmentid=97251&stc=1&d=1322992695 4:http://www.botanicalgarden.ubc.ca/forums/attachment.php?attachmentid=97252&stc=1&d=1322992695 5:http://www.botanicalgarden.ubc.ca/forums/attachment.php?attachmentid=97253&stc=1&d=1322992695
#3 is a cultivar of Lawson's Cypress Chamaecyparis lawsoniana, possibly 'Fletcheri'. #4 is a variegated Chlorophytum comosum.
Additional Information: [Plant 4] Has a white flower (which is line-like, unlike any flower that's tear-drop-like) with red string-like things in the middle