Notholaena

Fig. 2.49 Map of Notholaena standleyi sites, showing gold-race, yellow-green-race, and yellow-race populations...

Table 2.16 Occurrence of flavonols in leaf exudates of Notholaena standleyi (after Seigler and Wollenweber, 1983)...

Mirabilis viscosa Notholaena nivea Calceolaria mexicana... 

Wollenweber, E. et al., Flavonoid aglycones and a dihydrostilbene from the frond exudate of Notholaena nivea, Phytochemistry, 33, 611, 1993. 

Wollenweber, E., Dorr, M., and Stevens, J.E., A dihydroflavonol with taxonomic significance from the fern Notholaena sulphurea, Z. Naturforsch., 56C, 499, 2001. 

Farinose Exudates of the Polypodlaceae and Prlmulaceae. Members of the Polypodlaceae produce a yellow or white powdery deposit on the lower surface of their fronds. These deposits are usually referred to as farinose exudates. Farina from species of Pltyrogramma, Chellanthes, Adlantum, and Notholaena have been carefully studied. The farinose coating of these plants Is formed by the terminal cell of small hairs usually found on the lower surface of the frond. 

Notholaenic acid (109) from Notholaena standleyi afforded anti-HSV-I activity at a relatively high concentration (25 fxg/disk) (Rinehart et al., 1990). 

Taxonomy Cycloartane Triterpenoids Notholaena Candida (Pteridaceae) [1]. CAS Registry Number 145671-15-4. 

Flavone aglycones more than 400 kinds Prunus (Rosaceae) (heartwoods), Alnus, Betula, Ostrya (Betulaceae) (bud wax). Primula (Primulaceae) (farinose exudates), Pityrogramma, Cheilanthes, Notholaena (pteridophytes) (farinose exudates), etc. 

In the Pityrogramma, flavones and flavonols are minor constituents of the farina flavonoids (147,162, 245). In Notholaena and Cheilanthes... 

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