RE: [Aroid-l] Leaf vein nomenclature

From: "Derek Burch" derek at horticulturist.com> on 2005.06.25 at 11:57:31(13050) This looks much more complicated than it really is. Using your example, it means that the usual number of veins per side is six to nine. But in examining a lot of specimens that in all other characters fit the species description, the botanist found occasional examples with as few as five or as many as ten veins per side. Particularly when used in a key, this prevents a plant being excluded from its correct identification because it is aberrant in a single small character. As I am sure you know, you should always read both parts of the couplet that makes up that stage in the keying process, and select the path that best fits the "unknown" plant even if it isn't an absolutely perfect fit. +More Hope this helps, Derek -----Original Message----- On Behalf Of a san juan Sent: Saturday, June 25, 2005 12:22 AM To: Discussion of aroids Subject: [Aroid-l] Leaf vein nomenclature I was looking at a key for Philodendrons, and came upon a numbering system for leaf veins that I'm not sure about. "primary lateral veins of anterior division (5-)6-9(-10) per side" What does this mean? Thanks for any help! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

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