POC Conf. Call 7-12-11
POC meeting, Webex Conference Call; Date: Tuesday July 12th, 2011 10am (PDT)
In attendance:
POC members: Absent:
Collaborators: none
Acceptance of the minutes from the POC_Conf._Call_7-5-11?
User requests, Plant Anotomy Ontology:
Legume terms submitted by Austin Mast
Several terms have already been dealt with (Taproot, Stem Hair, Prickles, Anther pore and anther slit).
Remaining:
phyllode
Last week, we looked at examples of leaves where the petiole is a phyllode, but there is lamina development (with leaflets) beyond the lamina. In this case, the phyllode only represents the petiole portion of the leaf. We need a term to describe this, as well as when the whole leaf develops as a phyllode. Revisit this next week.
Proposed def: A vascular leaf in which the laminar development is a median plane (perpendicular to the axis), rather than the more common state of in a transverse plane (tangent to the axis).
Comment: Lamina development in a phyllode may occur in the region of the leaf that would normally develop into a petiole. In some leaves, the petiole may twist giving the appearance that the lamina is a phyllode, but it is not.
See references by Boke 1940 (http://www.jstor.org/stable/2436690, DOI:10.2307/2436690) and Kaplan 1970
Unifacial leaf as synonym? No- not the same, but similar development.
TraitNet requests:
corm,
- Legume terms submitted by Austin Mast.
Several terms have already been dealt with (Taproot, Stem Hair, Prickles, Anther pore and anther slit).
Remaining: fascicle
bristle (used in key as "Stipules spinose or bristles"; might be thought of as a quality, rather than a structure)
- root terms submitted by Rich Zobel (Nov 2009)
banner, wing and keel
reference: Lawrence, Taxonomy of Vascular Plants (1955)
Banner (as in a legume flower) - suggest using name banner petal
Proposed def: A petal that is the top-most petal of a papilionaceous corolla.
Comment: Usually larger than the adjacent wing petals. Found in the flowers of some Fabaceae.
Synonyms vexillum (exact), standard (broad)
Wing (as in a legume flower) - suggest using name wing petal
Proposed def: One of two lateral petals that is adjacent to the banner petal of a papilionaceous corolla .
Comment: The wing petals are usually much smaller than the banner petal and the corolla keel. Found in the flowers of some Fabaceae.
Keel (as in a legume flower) - suggest using name corolla keel and adding term for keel petal.
Two new terms:
corolla keel: A boat-shaped collective phyllome structure that consists of the two lowest petals of a papilionaceous corolla.
Comment: The two petals of the keel are often fused at the apex and free at the base. The keel projects toward the front of the flower. Found in the flowers of some Fabaceae.
is_a collective phyllome structure, part_of corolla
keel petal: A petal that is one of the two lowest petals of a papilionaceous corolla.
Comment: The keel petals are usually larger than the adjacent wing petals. They are often partially fused to each other. Each petal is shaped like half a boat and projects toward the front of the flower.
bristle
More complicated, because it is a phenotype term, and applies to structures other than stipules.
Will discuss at a future meeting.
