with a blunt (obtuse) and slightly notched apex.
with a very blunt and slightly notched apex. cf. emarginate
a shallow dent or notch in a rounded apex
• (a.) Having the end rounded and slightly indented; as, a retuse leaf.
The apex rounded and with a shallow notch.
having a rounded apex with a shallow notch
With a very blunt and slightly notched apex. ... (09 Oct 1997) ... 
having a rounded apex with a shallow notch
Having a notch in a rounded or obtuse apex.
Re·tuse' adjective [ Latin retusus , past participle : confer French rétus . See Retund .] (Bot. & Zoology) Having the end rounded and slightly indented; as, a retuse leaf. 
a shallow dent or notch in a rounded apex
In botany, retuse describes something, usually a leaf, having an obtuse or rounded apex with a shallow notch.
rounded at the end, but with a broad shallow notch in the center