Table 3 in Taxonomic updates in Amphitecna (Bignoniaceae): A new Mexican species and the re-establishment of the giant-leaved A. megalophylla

Table 3. Comparison of diagnostic morphological features among Amphitecna fonceti (Bignoniaceae) and close relatives.
Morphological featuresAmphitecna foncetiAmphitecna apiculataAmphitecna latifoliaAmphitecna sessilifoliaLeaf longUp to 40 cmUp to 40 cmUp to 20 cmUp to 30 cmLeaf wideUp to 13 cmUp to 12 cmUp to 11 cmUp to 9 cmInflorescencesMostly ramiflorousMostly terminalMostly terminalTerminalPedicel lengthUp to 60 mmUp to 50 mmUp to 40 mmUp to 80 mmCalyx lengthup to 32 mmup to 20 mmup to 37 mmup to 30 mmCalyx surfaceStrongly costate, pubescent and densely covered with lenticels-like white dotsSmooth and glabrousSmooth and glabrousSmooth and glabrousCorolla shapeFunnelformTubularFunnelformFunnelformCorolla lengthup to 45 mmup to 28 mmup to 62 mmup to 52 mmCorolla mouth23 mm diam.10 mm diam.24 mm diam.16 mm diam.Stamens3, rarely 4444Stamen insertion4-12 mm from base of the tube10 mm from base of the tube15-20 mm from base of the tube13-18 mm from base of the tubeStyle length33-37 mm?45-50 mm38-39 mmFruits shapeEllipticEllipticGloboseEllipticFruits apexAcute to short apiculateApiculateRoundedApiculateHabitatOak forest at c. 1500 m altitudeLowland wet forest mostly below 500 m altitudeRestricted to coastal forest and mangroveMontane wet forest mostly between 1300 and 2000 m alt

表3 丰塞卡Amphitecna fonceti（紫葳科Bignoniaceae）及其近缘类群的诊断形态特征对比
形态特征 丰塞卡Amphitecna fonceti 具尖Amphitecna apiculata 宽叶Amphitecna latifolia 无柄叶Amphitecna sessilifolia
叶长 长达40 cm 长达40 cm 长达20 cm 长达30 cm
叶宽 长达13 cm 长达12 cm 长达11 cm 长达9 cm
花序 多为老茎生花 多为顶生 多为顶生 顶生
花梗长度 长达60 mm 长达50 mm 长达40 mm 长达80 mm
花萼长度 长达32 mm 长达20 mm 长达37 mm 长达30 mm
花萼表面 具明显肋纹，被短柔毛且密被类皮孔状白色小点 光滑无毛 光滑无毛 光滑无毛
花冠形状 漏斗形 管状 漏斗形 漏斗形
花冠长度 长达45 mm 长达28 mm 长达62 mm 长达52 mm
花冠口部 直径23 mm 直径10 mm 直径24 mm 直径16 mm
雄蕊 3枚，偶见4枚 4枚 4枚 4枚
雄蕊着生位置 距花冠筒基部4-12 mm处 距花冠筒基部10 mm处 距花冠筒基部15-20 mm处 距花冠筒基部13-18 mm处
花柱长度 33-37 mm 未知 45-50 mm 38-39 mm
果实形状 椭圆形 椭圆形 球形 椭圆形
果实先端 急尖至具短尖头 具尖头 圆形 具尖头
生境 海拔约1500米的栎林 多生于海拔500米以下的低地湿林 仅分布于海岸林与红树林 多生于海拔1300-2000米的山地湿林