▁append ages . ▁Pol len ▁is ▁released ▁inside ▁the ▁t ube ▁and ▁is ▁collected ▁around ▁the ▁growing ▁style , ▁and ▁then , ▁as ▁the ▁style ▁el ong ates , ▁is ▁pushed ▁out ▁of ▁the ▁t ube ▁( n üd els prit ze ). ▁ ▁The ▁p ist il ▁consists ▁of ▁two ▁conn ate ▁car p els . ▁The ▁style ▁has ▁two ▁lo bes . ▁St ig m atic ▁t issue ▁may ▁be ▁located ▁in ▁the ▁interior ▁surface ▁or ▁form ▁two ▁later al ▁lines . ▁The ▁ov ary ▁is ▁inferior ▁and ▁has ▁only ▁one ▁ov ule , ▁with ▁bas al ▁pla cent ation . ▁ ▁F ruits ▁and ▁se eds ▁ ▁In ▁members ▁of ▁the ▁A ster aceae ▁the ▁fruit ▁is ▁ach ene - like , ▁and ▁is ▁called ▁a ▁cy ps ela ▁( pl ural ▁cy ps ela e ). ▁Although ▁there ▁are ▁two ▁f used ▁car p els , ▁there ▁is ▁only ▁one ▁loc ule , ▁and ▁only ▁one ▁seed ▁per ▁fruit ▁is ▁formed . ▁It ▁may ▁sometimes ▁be ▁wing ed ▁or ▁sp iny ▁because ▁the ▁p app us , ▁which ▁is ▁derived ▁from ▁cal y x ▁t issue ▁often ▁remains ▁on ▁the ▁fruit ▁( for ▁example ▁in ▁d and el ion ). ▁In ▁some ▁species , ▁however , ▁the ▁p app us ▁falls ▁off ▁( for ▁example ▁in ▁Hel ian th us ). ▁Cy ps ela ▁morph ology ▁is ▁often ▁used ▁to ▁help ▁determine ▁plant ▁relationships ▁at ▁the ▁genus ▁and ▁species ▁level . ▁The ▁m ature ▁se eds ▁usually ▁have ▁little