Latin word for Comma-shaped

[Alex Buchanan Tasmanian Herbarium]

Can a latin scholar help with this one?

Is there a latin term for a solid object, in this case a seed, which is
comma-shaped, i.e. with a more or less rounded head curving into a pointed
tail?

Thanks,  Dennis Morris

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Alex M. Buchanan                abuchanan at tmag.tas.gov.au
Assistant Curator
Tasmanian Herbarium             Phone: (03) 62262635
GPO Box 252-04                    Fax:   (03) 62267865
HOBART Tas. 7001
AUSTRALIA