منابع مشابه
A New Approach for the Determination of Ammonite and Nautilid Habitats
Externally shelled cephalopods were important elements in open marine habitats throughout Earth history. Paleotemperatures calculated on the basis of the oxygen isotope composition of their shells can provide insights into ancient marine systems as well as the ecology of this important group of organisms. In some sedimentary deposits, however, the aragonitic shell of the ammonite or nautilid is...
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Four new dammarane-type triterpenoid saponins, chikusetsusaponin FT(1) (1), chikusetsusaponin FT(2) (2), chikusetsusaponin FT(3) (3), chikusetsusaponin FT(4) (4), and six known triterpenoid saponins, chikusetsusaponin FK(4) (8), chikusetsusaponin FK(5) (9), chikusetsusaponin FK(2) (10), chikusetsusaponin FK(3) (11), chikusetsusaponin LN(4) (12), and chikusetsusaponin IVa (14), were isolated fro...
متن کاملA new Xylaria species from Iran
Three species of the genus Xylaria (Xylariaceae) are presented based on collections from Guilan Province, Iran. Both morphological and molecular characteristics were used in order to identify these species. Xylaria longissima sp. nov. is described and illustrated as a new Xylaria species and X. cf. striata and X. xylarioides are reported as new records from Iranian mycobiota. Xylaria longissima...
متن کاملPrometheum rechingeri, a new report from Iran
In the course of the study of collected specimens from West Azerbaijan province (NW Iran), Prometheum rechingeri (Crassulaceae) is reported for the first time from Iran. Based on recent phylogenetic and morphological studies in Crassulaceae family, genus Prometheum was considered as independent genus. So far, two species viz. P. pilosum (under Sedum pilosum), and P. sempervivoides (under S. se...
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ژورنال
عنوان ژورنال: Proceedings of the Japan Academy, Series B
سال: 1984
ISSN: 0386-2208,1349-2896
DOI: 10.2183/pjab.60.33