corniculate

perianth lobes 4, connate 1/2 of length, subapically corniculate with a small gibbose appendix at each side;

花被裂片4，合生的长度的1/2，近顶端具小角状突起具小的凸圆附属；

perianth lobes 4, obovate-oblong, connate 1/2 of length, subapically corniculate, with 2 small gibbose appendices at each side;

花被裂片4，倒卵状长圆形，合生的长度的1/2，近顶端具小角状突起，具2小的凸圆附属；