scholarly journals Progress and problems in the assessment of flower morphology in higher-level systematics

2012 ◽  
Vol 298 (2) ◽  
pp. 257-276 ◽  
Author(s):  
Peter K. Endress ◽  
Merran L. Matthews
Keyword(s):  
Flower Morphology

Biological and geographical characteristics Lavandula latifolia Medik.

2020 ◽  
Author(s):  
M.Yu. Cherednichenko M.Yu. ◽  
◽  
A.S. Elenchuk A.S.
Keyword(s):  
Geographical Distribution ◽  
Common Species ◽  
Flower Morphology ◽  
Lavandula Latifolia ◽  
Geographical Characteristics

The article presents the characteristics of the geographical distribution of broadleaved lavender, as well as the features of the flower morphology of this species in comparison with other common species of the genus.

scholarly journals Identity of mass-flowering crops moderates functional trait composition of pollinator communities

2021 ◽  
Author(s):  
Nicole Beyer ◽  
Felix Kirsch ◽  
Doreen Gabriel ◽  
Catrin Westphal
Keyword(s):  
Faba Bean ◽  
Management Practices ◽  
Functional Trait ◽  
Flower Morphology ◽  
Landscape Diversity ◽  
Floral Resources ◽  
Wild Bees ◽  
Natural Habitats ◽  
Mass Flowering ◽  
Wild Bee

Abstract Context Pollinator declines and functional homogenization of farmland insect communities have been reported. Mass-flowering crops (MFC) can support pollinators by providing floral resources. Knowledge about how MFC with dissimilar flower morphology affect functional groups and functional trait compositions of wild bee communities is scarce. Objective We investigated how two morphologically different MFC, land cover and local flower cover of semi-natural habitats (SNH) and landscape diversity affect wild bees and their functional traits (body size, tongue length, sociality, foraging preferences). Methods We conducted landscape-level wild bee surveys in SNH of 30 paired study landscapes covering an oilseed rape (OSR) (Brassica napus L.) gradient. In 15 study landscapes faba beans (Vicia faba L.) were grown, paired with respective control landscapes without grain legumes. Results Faba bean cultivation promoted bumblebees (Bombus spp. Latreille), whereas non-Bombus densities were only driven by the local flower cover of SNH. High landscape diversity enhanced wild bee species richness. Faba bean cultivation enhanced the proportions of social wild bees, bees foraging on Fabaceae and slightly of long-tongued bumblebees. Solitary bee proportions increased with high covers of OSR. High local SNH flower covers mitigated changes of mean bee sizes caused by faba bean cultivation. Conclusions Our results show that MFC support specific functional bee groups adapted to their flower morphology and can alter pollinators` functional trait composition. We conclude that management practices need to target the cultivation of functionally diverse crops, combined with high local flower covers of diverse SNH to create heterogeneous landscapes, which sustain diverse pollinator communities.

Preparation of Rutile Crystalline Glaze

2010 ◽  
Vol 105-106 ◽  
pp. 778-781
Author(s):  
Yin Feng Xia ◽  
Zhao Hui Huang ◽  
Jia Zheng Yuan ◽  
Lin Jun Wang ◽  
Jie Hua Xie
Keyword(s):  
Phase Composition ◽  
Crystallization Process ◽  
Raw Materials ◽  
Flower Morphology ◽  
Processing Conditions ◽  
Single Track ◽  
Spontaneous Growth ◽  
Microscopy Analysis ◽  
Coloring Agents ◽  
Aesthetic Values

Crystalline glaze is a kind of art glaze with excellent decorative performance, the existing crystalline glaze mainly willemite crystalline glaze, systems on a single track. In this paper, the use of crystalline glaze raw materials for glass, ZnO and coke gemstones, CuO as coloring agents, using ortho- gonal to determine the formula, this paper researched that added TiO2 to the willemite crystalline glaze crystal phase composition as well as the amount of TiO2 and processing conditions on the preparation of crystalline glaze crystal flower morphology impact. The results show that under the conditions of 1250°C melting 1130°C crystallization process crystal spontaneous growth in crystalline glaze can be able to cover the entire glazed, shape of crystals was feathered, cross growth, the number of crystal increased with crystallization temperature, glaze was smooth and shiny sense. XRD and optical microscopy analysis showed that the precipitation of crystals was the long column of rutile, crystal distributed equality, under a polarizing microscope in purple, green and black, with strong aesthetic values.

scholarly journals Studies on the Structure of Flowers and Inflorescences of Cornelian Cherry (Cornus mas L.)

2012 ◽  
Vol 40 (2) ◽  
pp. 53 ◽  
Author(s):  
Cevriye MERT
Keyword(s):  
Pollen Grains ◽  
Flower Morphology ◽  
Flower Number ◽  
Flower Buds ◽  
Cornelian Cherry ◽  
Cornus Mas ◽  
Conducting Tissue ◽  
Stereo Microscope ◽  
The Mean ◽  
Scanning Electron

This study reports on the arrangement of flower buds and structure of floral organs of cornelian cherry (Cornus mas L.) cultivars local to Turkey. The local cultivars were investigated under stereo microscope, light microscope, and scanning electron microscope (SEM). The results indicate that each node has two oppositely positioned buds on 1-year-old shoot. Inflorescences resembled the umbel structure that enclosed four (two sets of oppositely oriented) bud scales. The mean flower number varied between 16.3 and 19.9 per cluster among the cultivars. The flowers resembled the hermaphrodite type and one flower was found to have four rudimentary sepals, four petals, four stamens, and one pistil. The stamens were noted to be arranged around the base of the ovary. Each normal anther was observed to have two pollen-producing theca, and each theca was found to have two locules. The number of pollen grains per anther varied between 1380 and 4240 among the genotypes. The pistil was noted to have a deeply hollowed papillate stigmatic surface, and the central part of the style had conducting tissue. The ovarium part of the pistil was found to be surrounded by the nectary tissue, inferior type, and had two atropous ovules. The fruit resembled single-seeded, stone fruit type. This study is the first detailed study on the flower morphology and inflorescences of the cornelian cherry cultivars in Turkey.

A new species of Smilax (Smilacaceae) from Yunnan, China

Phytotaxa ◽  
2016 ◽  
Vol 275 (2) ◽  
pp. 159 ◽  
Author(s):  
XIN-JIE JIN ◽  
YAO CHEN ◽  
JOONGKU LEE ◽  
Zhechen Qi ◽  
LuXian Liu ◽  
...  
Keyword(s):  
New Species ◽  
Species Delimitation ◽  
Flower Morphology ◽  
Evolutionary Transition ◽  
Ideal Model ◽  
Floral Trait ◽  
Evolution And Development ◽  
Male Flowers ◽  
A New Species ◽  
Female Flowers

A new species, Smilax hirtellicaulis (Smilacaceae), from southwestern China is described and illustrated. The new species differs from all known Smilax species in its unique tepals, i.e., basally connate in male flowers but separate in female flowers. Phylogenetic analysis supports its species delimitation, and suggests a sister position to the clade of Smilax sect. Heterosmilax which have flowers with connate tepals. Their closest phylogenetic relationship and resembled flower morphology may represent an evolutionary transition from separate to united tepals in Smilax. It thus provides us an ideal model for studying the evolution and development of such an innovative floral trait.

Flower Morphology

2021 ◽  
pp. 19-44
Author(s):  
Fernando Ramírez ◽  
Thomas Lee Davenport
Keyword(s):  
Flower Morphology

A new Agave species (Asparagaceae, Agavoideae), from southern Oaxaca, Mexico

Phytotaxa ◽  
2020 ◽  
Vol 428 (2) ◽  
pp. 73-80 ◽  
Author(s):  
GREG D. STARR
Keyword(s):  
New Species ◽  
Flower Morphology ◽  
A New Species

A new species, Agave calciphila, endemic to the limestone hills north of Nizanda, Oaxaca, Mexico, is described. Its vegetative and flower morphology place this species in the section Heteracanthae, and close to Agave angustiarum, A. ghiesbreghtii, and A. huehueteca. After a comparison with these three species, A. calciphila was found to have shorter sterile peduncle and flowers.  

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