Angiopteris

Isoviolanthin (5,7,4 -triOH 6-Rha-8-Glc) Angiopteris evecta (Pterid.) Wallace et al. (1979)... 

Of tropical and warm zones. Angiopteris (= Onoclea) spp. (2), included in Aspidiaceae. -... 

CizHigOg 290.269 Constit. of rhizome of Angiopteris lygodiifolia. Cryst. (CHCyMeOH). 

Isol. from Viola tricolor, Angiopteris erecta and other plant spp. Cryst. + 2.5H2O (AcOH/MeOH aq.). 

Osmundalin (826) has been isolated from Osmunda japonica and O. regalis var. spectabilis 459 and its diastereoisomer angiopteroside (827) from the rhizome of Angiopteris lygodiifolia 460, 461). Recently, three compounds 823, 824 and 825, which had originally been prepared by synthesis, were isolated from Osmunda japonica. These compounds are active as antifeedants on the larvae of yellow butterfly, Eurema he-cabe mandarina (457, 458). 

The genus Angiopteris is characterized by the co-occurrence of typical di-C-glycosylflavones and flavone-O-glucosides. This fact may be useful for delimiting morphologically distinct Angiopteris ferns 199, 201). 

Protocatechuic acid 4-O-P-D-glucoside Angiopteris lygodiifolia Ros. C13H16O9 -53.5 55 z... 

Vicenin-2 (6,8-Di-C-glucosylapigenin) Angiopteris evecta Hoffm. 199 tentative ... 

Wallace, J.W., D.L. Yopp, E. Besson, and J. Chopin Apigenin di-C-glycosylfla-vones of Angiopteris (Marattiales). Phytochem. 20, 2701 (1981). 

Hseu, T.H. Structure of Angiopteroside (4-0-p-D-Glucopyranosyl-L-j/ireu-2-hexen-5-olide) Monohydrate, a Fern Glycoside from Angiopteris lygodiifolia Ros. Acta Crystallogr. B37, 2095 (1981). 

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