Macrostomum

Noroxyhydrastinine (2a) was isolated from the Korean Corydalis (107), N-methylcorydaldine (2b) from P. bracteatum (235) and P. urbanianum (283), and (+)-l-methylcorypalline (la) from C. ambigua (66). The structure of the latter was also confirmed by synthesis of its racemate. Hydra-stinine was isolated from C. cava (73), and N-methylcoclaurine (7c) from G. fimbrilligerum (206). Sevanine (3b) and macrostomine (6) are two new alkaloids of P. macrostomum (242) whose structures were established on the... 

Of the six species classified by Fedde (70) in this section, only P. mac-rostomum Boiss. et Huet. has been studied (Table VII). The other species are morphologically closely related (46). Plants cultivated in central Europe (CSSR, GDR), were found to contain rhoeadine, papaverrubine, and protopine alkaloids in the same way as the species of the sections Orthorhoeades and Argemonorhoeades (40,47). Plants collected in the vicinity of Lake Sevan (Armenia) yielded macrostomine (40) as the major alkaloid together with dehydronor-macrostomine (43) and sevanine (37) (benzylisoquinolines of the papaverine type) but no rhoeadines or papaverrubines (48). These differences in the alkaloid content may be explained by the observation that P. macrostomum from Armenia... 

Ingole, B.S. (1987). Occurrence of resting eggs in Macrostomum orthostylum (M. Braun, 1885) (TurbeUaria Macrostomida). ZoologischerAnzeiger 219, 19-24. 

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