fruit section

[Jeff J. Doyle]

There are quite a few Leguminosae species that have indehiscent 
fruits; these are legumes in the sense that they are modified from 
species with typical legume fruits.  Cronquist (1981, pp. 600-601) 
says the following:

FRUIT commonly dry and dehiscent down both sutures (i.e., a typical 
legume) but sometimes follicular, or indehiscent and then sometimes 
winged or breaking transversely into 1-seeded joints (i.e., a 
loment), rarely bladdery-inflated or more or less drupaceous (Andira) 
or otherwise fleshy, or nut-like or achene-like; seldom (as in spp. 
of Astragalus) the dorsal suture of the fruit giving rise to a 
partial or even complete partition.

A lot of variation to accommodate!

--Jeff

>Hi,
>
>I have some comments on fruit section
>
>-term "legume" is currently  a direct instance of fruit. Do you 
>think it should be placed as an instance of term "seed as dispersal 
>unit", which is an instance of dehiscent fruit.
>-do we need all the instances of (sort of attributes) of capsule, 
>e.g. loculicidal, septicidal etc. I know the exclusion of 
>"septifragal" will be difficult because of the following comment. Is 
>there a way out?
>-people may like to see "slilique" as a primary term compared to a 
>synonym for "septifragal"
>-a possible TPR violation..
>	generic term gynoecium appears under floret and this may 
>cause TPR violation because not all the fruit types develop from 
>"floret gynoecium" (newly coined term). It's only the "caryopsis" 
>which develops from gynoecium in the floret. We need a resolution on 
>this.
>
>may be we need to pull back the relationship
>fruit  develops from gynoecium
>
>One such example is slilique appearing under floret..
>
>http://brie.cshl.org:8080/amigo/go.cgi?action=replace_tree&search_constraint=terms&query=PO:0020072
>
>      <inflorescence branch ; PO:0009081 ; synonym:coflorescence
>       %spikelet ; PO:0009051
>        <floret ; PO:0009082
>         <gynoecium ; PO:0009062 ; synonym:pistil < flower ; 
>PO:0009046 % reproductive structures ; PO:0009083
>          ~fruit ; PO:0009001 % mature dispersal unit ; PO:0009091
>           %dehiscent fruit ; PO:0020064
>            %seed as dispersal unit ; PO:0020081
>             %capsule ; PO:0020067
>              %septifragal ; PO:0020072 ; synonym:silicula ; 
>synonym:siliqua ; synonym:silique


-- 
Jeff J. Doyle
Professor, L. H. Bailey Hortorium, Department of Plant Biology, 
Cornell University
office: 259 Plant Science Building
tel: 607 255-7972 (lab: 607 255-1953); fax: 607-255-5407
http://www.plantbio.cornell.edu/faculty.php?PB=jjd5

mailing address:

Department of Plant Biology
228 Plant Science Building
Cornell University
Ithaca, NY 14853-4301