نتایج جستجو برای: leaf venation pattern

تعداد نتایج: 431191  

2016
Yan Zheng Jun Chen Xiaoli Wang

A new genus Maculaprosbole of Tettigarctidae with a new species Maculaprosbole zhengi is described based on a complete fossil forewing from the Mesozoic of northeastern China. Due to its broad costal area and clavus, Maculaprosbole zhengigen. et sp. n. can be attributed to the subfamily Cicadoprosbolinae. This genus is similar to the genera Sanmai and Hirtaprosbole in coloration pattern and for...

Journal: :American journal of botany 2008
David Winship Taylor Gilbert J Brenner Sa'd Hasan Basha

A new species of aquatic plant, Scutifolium jordanicum gen. et sp. nov., Taylor, Brenner & Basha, is described from the Albian of Jordan. The leaves are microphyllous with a symmetrical, elliptical to suborbiculate shape, convex to rounded apex and base, and actinodromous to palinactinodromous primary venation. The peltate, centrally attached petioles are narrow, elongate, and alternately arran...

2011
Ulrich Kotthoff Torsten Wappler Michael S. Engel

The Miocene Randeck Maar (southwestern Germany) is one of the only sites with abundant material of fossil honey bees. The fauna has been the focus of much scrutiny by early authors who recognized multiple species or subspecies within the fauna. The history of work on the Randeck Maar is briefly reviewed and these fossils placed into context with other Tertiary and living species of the genus Ap...

2008
Sangmi Lee

A new method is described for preparing slide mounts of whole bodies of microlepidoptera to facilitate comparative morphological studies. This me­ thod conserves traditional characters of wing pattern while revealing wing venation and other morpholo­ gical structures of the denuded body. Examples of new characters revealed on slide mounts of whole bodies and photographed with a Confocal Laser S...

2016
Yuehua Song Zizhong Li Christopher H. Dietrich

A new genus of tribe Erythroneurini from Thailand, Thaioneura gen. n., including three new species: Thaioneura nigrilinea sp. n. (type species), Thaioneura sinuata sp. n. and Thaioneura suphanburia sp. n., is described and illustrated and a key to species is provided. The new genus exhibits a pattern of interspecific variation in the hind wing venation that has not been observed in other genera...

2017
Mahipal S. Shekhawat M. Manokari

Method: The foliar micromorphological parameters such as orientation, stomatal types and morphology; density, distribution of trichomes and stomata; stomatal index and trichome types, paradermal sections were obtained manually by the standard method. The leaves were excised and fixed primarily in formalin, acetic acid and ethyl alcohol solution; cleared in 70% ethanol, bleached with 5% NaOH and...

Journal: :Review on agriculture and rural development 2022

The effects of a heavy metal containing wastewater sediment on two cultivars white willow were investigated in pot experiment. Our aim was to examine the effect toxic elements microanatomical parameters leaves tested plant. We examined following parameters: stomatic density, stoma width and length, lamina thickness, adaxial abaxial epidermis mesophyll palisad spongy parenchyma main vein length....

Journal: :Webbia 2022

Lychnophora pseudovillosissima, a new species from the State of Minas Gerais, Brazil, is here described and illustrated. The unique because combination petiolate linear leaves with revolute margins, reticulodromous venation, 3–5 florets per capitulum. compared to morphologically similar species, L. villosissima, resembling in habit, leaves, number capitulum, but differing by shape size leaf pet...

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