Microlepia

The abundance of pollen decreases rapidly with depth in the upper 0.14 m of SL profile (Table 4). Pollen was scarce below 0.14 m, with abundance of only 0-6 grains g-1, and no pollen was found below 0.26 m. Only modem fem spores were found below 0.26 m, including mainly Dicranop-teris, Hicriopteris, Microlepia and other monolete and trilete spores, and turned to be monotonous with depth (Fig. 6). 

Tanaka, N. et al.. Chemical and chemotaxonomical studies of ferns. LXXXIII. Constituent variation of Microlepia marginata (1), Yakugaku Zasshi, 113, 70, 1993. 

Source Scypholepia hookeriana. SM, isy n, Microlepia hookeriana (Wall.) Presl) Mol. formula 43 70 18 Mol. wt. 874 Solvent ... 

Source Microlepia marginata (Panzer) C. Chr. Mol. formula C2gH g0g 26.7... 

Glycosides of -pimarane type diterpenes (544-552) were obtained from Scypholepia hookeriana (331) and Microlepia tenera (332), One of them, hookeroside D (548), is an example of the rare diterpene tetro-sides. 

O-p-D-glucoside wightianum Shieh ( = P. revolutum Nakai) Microlepia substrigosa Tagawa 262 ... 

Spelosin 3-O-a-L-arabinoside Microlepia speluncae Moore C2oH28 8 amorphous + 56.9 262... 

Kuraishi, T., T. Kimura, T. Murakami, Y. Saiki and C.-M. Chen Chemische und chemotaxonomische Untersuchungen der Pterophyten. XLVIII. Uber die Zuckerester aus Plagiogyria euphlebia (Kunze) Mett. und Microlepia speluncae L. Chem. Pharm. Bull. (Japan) 32,1998 (1984). 

Kuraishi, T., Y. Mitadera, T. Murakami, N. Tanaka, Y. Saiki, and C.-M. Chen Chemical and Chemotaxonomical Studies on Filices. XLII. Chemical Studies on the Constituents of Dicranopteris dichotoma (Thunb.) Bernh. and Microlepia obutusi-loba Hayata. J. Pharmac. Soc. Japan 103, 679 (1983). 

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