| 翻訳と辞書 |
| Vermilacinia rosei ： ウィキペディア英語版 |
Vermilacinia rosei
''Vermilacinia rosei'' is a fruticose lichen known from two islands off the Pacific Coast of central Baja California, San Roque Island and Cedros Island. The epithet, rosei, is in honor of Joseph Nelson Rose who collected the lichen on San Roque Island, 15 March 1911, during the ''Albatross'' Expedition.〔Towsend,. C. H. 1916. Voyage of the U.S.S. Albatross in Lower California Seas. Cruise of 1911. Bulletin of the American Museum of Natural History 35:399–476〕 His lichen specimens had been kept separate from the mounted and filed lichen collections in the herbarium at the Smithsonian Institution, Department of Botany, US)〔US is the acronym for the United States National Herbarium as standardized by the Index Herbariorum, http://sciweb.nybg.org/science2/IndexHerbariorum.asp〕 loose in brown standard herbarium paper, and were made available to Richard Spjut sometime after 1986 while he was undertaking a revision of the genus ''Niebla''.〔Spjut, R. W. 1996. ''Niebla'' and ''Vermilacinia'' (Ramalinaceae) from California and Baja California. Sida Miscellany 14〕 The epithet was proposed by Albert William Herre who considered the lichen to be a new species but did not describe the species or publish the name.〔
.
==Distinguishing Features==
''Vermilacinia rosei'' is classified in the subgenus ''Vermilacinia'' in which it is distinguished from related species by its thallus divided into relatively few fan-shaped branches (less than 10)—widely expanded above a short narrow stalk-like base—and by its secondary metabolites of triterpenes, referred to as T1 and T2 by their Rf values on thin-layer chromatography plates; their formulas are C30H50O2 (T1) and C30H50OO (T2). Lichen substances also include the triterpene zeorin and the diterpene (-)-16 α-hydroxykaurane that characterize subgenus ''Vermilacinia''.〔 The broadly expanded branches from base to apex is similar to ''V. robusta'', which differs by lacking the T1, T2 triterpenes, and by having a definite tubular shape to the branches. ''Vermilacinia varicosa'', also from Isla San Roque, appears morphological indistinguishable from ''V. rosei'', differing only in chemistry, lacking the two triterpenes, which appear to have phytogeography significance in the species classification of ''Vermilacinia''.〔 A specimen from Cedros Island referred to this species, collected by Richard Spjut and Richard Marin in April 1990, differs by having a thicker reticulate ridged cortex, 75–110 µm thick, compared to the cortex in the type collection with crater-like depression, 45–65(-75)µm thick.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Vermilacinia rosei」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|