Flowers subtended by 2 or more bracts ( spathes ) .
花以2个或更多苞片(佛焰苞)被包着。
Flowers produced on short shoots , each flower subtended by a bract or bract suppressed ; perianth lacking .
花生于短枝上，每个花都被苞片包围或者被隐藏在苞片里；花被无。
These subtended angles correspond to a viewing distance of roughly 2.2 times the screen width at the back row of the seating , down to 1.5 times the screen width at the front . Within these limits , viewers should be able to enjoy the most immersive experience .
