A.0.10% B.0.40% C.0.30% D.1.00%
A.金釵石斛 B.馬鞭石斛 C.聚花石斛 D.環(huán)草石斛
A.莖實(shí)心 B.花黃色單生葉腋 C.用水浸后,對光透視可見黑色或褐色條紋 D.葉互生,側(cè)脈羽狀