Anatomia foliar como subsídio à taxonomia de espécies do Complexo Briza L. (Poaceae: Pooideae: Poeae)
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چکیده
منابع مشابه
Agrostopoa (Poaceae, Pooideae, Poeae, Poinae), a New Genus with Three Species from Colombia
Agrostopoa Davidse, Soreng & P. M. Peterson, a new genus endemic to the páramos of Colombia, is proposed. The genus includes two new species, A. barclayae Davidse, Soreng & P. M. Peterson and A. woodii Soreng, P. M. Peterson & Davidse, and a third species transferred from Muhlenbergia Schreber, A. wallisii (Mez) P. M. Peterson, Soreng & Davidse (lectotype designated here). A key for determining...
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Circumscriptions of and relationships among many genera and suprageneric taxa of the diverse grass tribe Poeae remain controversial. In an attempt to clarify these, we conducted phylogenetic analyses of >2400 new DNA sequences from two nuclear ribosomal regions (ITS, including internal transcribed spacers 1 and 2 and the 5.8S gene, and the 3'-end of the external transcribed spacer (ETS)) and fi...
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A revision and key to the 23 species and eight subspecies of Poa (including Dissanthelium) known to occur in Mexico is provided. All voucher specimens seen are cited for accepted taxa, except Poa annua for which one voucher per state is provided. Taxa not previously known from, or poorly understood in, Mexico are discussed.Poa palmerisp. nov. is endemic to forested slopes of the Sierra Madre Or...
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Reportamos aqui a síntese e caracterização do ligante hexadentado H 2 L (N,N’,N,N’-bis[(2hidroxi-3,5-di-terc-butilbenzil)(2-piridilmetil)]etilenodiamino), como derivado adicional do bem conhecido pré-ligante H 2 bbpen, e que contém dois grupos fenolatos e dois grupos piridínicos conectados à unidade etilenodiamina. Os grupos fenolatos no pré-ligante H 2 L estão adequadamente protegidos por grup...
متن کاملمروری بر جنس (Eremopoa Roschv. (Poaceae, Poeae در ایران
بر مبنای بازبینی تاکسونومیک، جنس Eremopoa و منابع مربوط به این جنس با دارابودن چهار گونه و سه واریته در ایران به رسمّیت شناخته می‌شود.که یک واریته (E. persica var. oxyglumis) به عنوان ترکیب جدید به فلور ایران اضافه می‌شود.
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ژورنال
عنوان ژورنال: Acta Botanica Brasilica
سال: 2009
ISSN: 0102-3306
DOI: 10.1590/s0102-33062009000300006