▁in ▁texture . ▁The ▁l am ina ▁( leaf ▁bla de ) ▁is ▁lance olate - elli ptic ▁in ▁shape ▁and ▁reaches ▁ 8   cm ▁in ▁length ▁by ▁ 1   cm ▁in ▁width , ▁being ▁wid est ▁in ▁its ▁dist al ▁half . ▁The ▁l am ina ▁has ▁an ▁ac ute ▁a pe x ▁and ▁is ▁shortly ▁at ten uate ▁at ▁the ▁base , ▁cl asp ing ▁the ▁stem ▁for ▁approximately ▁one - third ▁of ▁its ▁circum ference . ▁It ▁is ▁not ▁dec urrent ▁down ▁the ▁stem . ▁Two ▁to ▁three ▁longitud inal ▁ve ins ▁are ▁present ▁on ▁either ▁side ▁of ▁the ▁mid rib , ▁while ▁p inn ate ▁ve ins ▁are ▁numerous . ▁T end r ils ▁are ▁up ▁to ▁ 7 . 5   cm ▁long ▁and ▁ 1   mm ▁wide . ▁ ▁P itch ers ▁Ros ette ▁and ▁lower ▁pitch ers ▁are ▁narrow ly ▁ov ate ▁in ▁the ▁bas al ▁portion ▁and ▁cyl ind rical ▁or ▁sometimes ▁slightly ▁inf und ib ular ▁above . ▁They ▁are ▁very ▁small , ▁reaching ▁only ▁ 4 . 1   cm ▁in ▁height ▁by ▁ 1 . 6   cm ▁in ▁width . ▁A ▁pair ▁of ▁wings ▁( ≤ 4   mm ▁wide ) ▁typically ▁runs ▁down ▁the ▁vent ral ▁surface ▁of ▁the ▁pitch er ▁cup , ▁although ▁these ▁may ▁be ▁reduced ▁to ▁rib s . ▁The ▁wings ▁bear ▁fr inge ▁elements ▁meas uring ▁around ▁ 3   mm ▁and ▁spac ed ▁ 2 . 5 – 3   mm ▁apart