Dasylirion ID

"angelopalm69" <[email protected]> Mon, 08 Apr 2002 22:34:01 -0000

Newsgroups	gmane.plants.agavaceae
Message-ID	<[email protected]>

Can anyone tell me criterias on how to tell apart Dasylirion wheeleri 
from glaucophyllum? And acrotriche from serratifolium?

Thanks
Angelo