Скачать или смотреть Duckbill Creeper, Cuello Creeper, Amphilophium paniculatum, Bignoniaceae

Duckbill Creeper, Cuello Creeper, Spanish Cucharo, bejuco esquinero
Botanical name:  Amphilophium paniculatum paniculatum    Family: Bignoniaceae (Jacaranda family)
Synonyms: Amphilophium mutisii, Amphilophium purpureum, Bignonia paniculata
Duckbill Creeper is a rare woody vine of semi-evergreen seasonal forest and lower mountain rainforest of Tropical America. Branchlets, leaf-stalks, and axis are angled, hexagonal, scaly, velvet-hairy. Leaves are 2- or 3-foliolate; leaf-stalks 2.3-7 cm long; leaflet-stalks 0.6-4.3 cm long; leaflets broadly ovate to rounded, tapering, heart-shaped at base, 2.5-16 cm long, 2-10.7 cm wide, sparsely glandular-lepidote on both surfaces, the upper surface hairless. Flowers are 5-parted, aromatic, white, usually variously tinged with maroon, turning deep purple, 3-4 cm long. They are fleshy, somewhat two-lipped, with 3 narrow lobes opposing a single broad lobe. Sepal-cup envelops one-third of flower, the margin broad, double, lobed and wavy. Capsules are oblong-ellipsoid, blunt to somewhat heart-shaped on either end, 9-16 cm long, to 4.5 cm wide. Duckbill Creeper is native range is Mexico to Tropical America, cultivated elsewhere.
Chemical investigation of the leaves of Amphilophium paniculatum (L.) Kunth. led to the isolation of a novel eudesmane cinnamic acid ester derivative (1). The structure of compound 1 was elucidated by spectroscopic analysis including ESI-MS as well as 1D and 2 D-NMR and was characterized as 3α – (2′,6′- dimethyl-3′,4′,5′- trihydroxycinnamoyloxy)-4β ,6β-dihydroxyeudesm-7en. The antimicrobial activity of the total extract and n-butanol fraction was evaluated