1.【植】萼片
1.a modified leaf in the outermost whorl of a flower that encloses the petals and other parts
1.Staminodes of same color as sepals, not black-brown, glabrous, distinctly differentiated into a claw and an expanded limb.
退化雄蕊与萼片相同颜色，不黑棕色，无毛，清楚分化成一瓣爪和一膨大的瓣片。
2.Petals inserted at rim of floral tube, alternating with sepals, crinkled, clawed or not, frequently caducous, rarely absent.
花瓣着生花被管的凸缘，与萼片互生，皱曲，有瓣爪或无，经常早落，很少无。
3.Leaves narrowly lanceolate to linear-lanceolate, base cuneate; plants glabrous; epicalyx segments shorter than to equaling sepals.
叶狭披针形的到线状披针形，基部楔形；植株无毛；为了等于萼片的副萼片短于。
4.Petals as many as sepals, orangish red, white, or yellow, sometimes with an orange claw or pale along margin, rarely apetalous.
花瓣与萼片同数，桔红、白色或黄，有时具橙色瓣爪或边缘色浅，很少无花瓣。
5.Trees up to 15 m tall, glabrous except for rufous pubescent branchlets, stipules, abaxial leaf surface, pedicels, and sepals.
乔木达15米高，除了小枝、托叶、叶背面、花梗和萼片上被红棕色短柔毛外无毛。
6.spring-blooming spider orchid having a flower with yellow or green or pink sepals and a broad brown velvety lip.
春季开花的蜘蛛兰，花有黄色、绿色或粉色的萼片、有宽阔而柔软的褐色唇瓣。
7.Sepals ovate or oblong, erect or ascending, glabrous, base of lateral pair substrate or not saccate.
或长圆形的萼片卵形，直立或上升，无毛，不囊状的侧对近囊状或的基部。
8.Sepals oblong, erect or ascending, glabrous or pubescent, base of lateral pair substrate or not.
萼片长圆形，直立或上升，侧的对近囊状的无毛或被短柔毛，基部与否。
9.Sepals triangular to ovate-lanceolate, soon caducous, outside pubescent, margin irregularly glandular serrate, apex long acuminate.
萼片三角形的到卵状披针形，不久早落，外面被短柔毛，边缘不规则具腺锯齿，先端长渐尖。
10.Sepals ovate or narrowly oblong, erect, glabrous or pubescent, base of lateral pair saccate or not.
萼片卵形或狭长圆形，直立，无毛或被短柔毛，囊状的侧对的基部与否。