Results 61 to 70 of about 32,000 (298)

Saxifraga rufescens var. rufescens (Saxifragaceae): A New Addition to the Flora of India

open access: yesFeddes Repertorium, EarlyView.
ABSTRACT Saxifraga rufescens Balf.f., a species of Saxifragaceae, previously known from China and Myanmar, is now recorded from Nagaland, India. This study offers detailed morphological descriptions, habitat characteristics, field photographs, distributional data, and an analysis of its taxonomic relationships with closely related species, facilitating
Santanu Dey   +4 more
wiley   +1 more source

Sensitive Stamens in Portulaca

open access: yesThe American Naturalist, 1873
Two years ago my attention was first called to the sensitiveness of the stamens of Portulaca grandiflora, by observing a peculiar motion in them, while a small wild bee was engaged in gathering honey, and perhaps pollen, from the flowers. Upon trial I found that I could, by touching the stamens, make them move through quite considerable arcs of circles.
openaire   +3 more sources

SUPERMAN, a regulator of floral homeotic genes in Arabidopsis [PDF]

open access: yes, 1992
We describe a locus, SUPERMAN, mutations in which result in extra stamens developing at the expense of the central carpels in the Arabidopsis thaliana flower.
Bowman, John L.   +5 more
core  

Ultralight, Washable, and Antibacterial Ultrafine Fiber Sponges by Direct Electrospinning for High‐Performance Warmth Retention

open access: yesMacromolecular Materials and Engineering, EarlyView.
In this study, a facile approach for fabricating washable and antibacterial PS/PU fibrous sponges by direct electrospinning is demonstrated. The obtained fiber sponge exhibits lightweight (3.89 mg cm−3), significant mechanical durability, warmth retention performance (23.77 mW m−¹ K−¹), and 98.9% antibacterial efficiency after 10 washing cycles, making
Hongyu Wu   +6 more
wiley   +1 more source

A regulatory network for coordinated flower maturation. [PDF]

open access: yesPLoS Genetics, 2012
For self-pollinating plants to reproduce, male and female organ development must be coordinated as flowers mature. The Arabidopsis transcription factors AUXIN RESPONSE FACTOR 6 (ARF6) and ARF8 regulate this complex process by promoting petal expansion ...
Paul H Reeves   +12 more
doaj   +1 more source

Dissecting the genome-wide evolution and function of R2R3-MYB transcription factor family in Rosa chinensis [PDF]

open access: yes, 2019
Rosa chinensis, an important ancestor species of Rosa hybrida, the most popular ornamental plant species worldwide, produces flowers with diverse colors and fragrances.
Cheng, Tangren   +7 more
core   +1 more source

New species and new records in Agarista (Ericaceae) from the Peruvian Andes

open access: yesNordic Journal of Botany, EarlyView.
Agarista (Ericaceae) is currently represented in Peru by three species. Here, we update this number to five, adding new taxa based on the recognition of a taxonomic novelty and new records. The new species Agarista eugeniifolia differs from all congeneric species by an abaxially sulcate midvein.
Claudenice Hilda Dalastra   +3 more
wiley   +1 more source

Floral organ transcriptome in Camellia sasanqua provided insight into stamen petaloid

open access: yesBMC Plant Biology, 2022
Background The cultivated Camellia sasanqua forms a divergent double flower pattern, and the stamen petaloid is a vital factor in the phenomenon. However, the regulation mechanism remains largely unclear.
Menglong Fan   +8 more
doaj   +1 more source

Molecular phylogenetics of Melastomataceae and Memecylaceae [PDF]

open access: yes, 2001
Melastomataceae are among the most abundant and diversified groups of plants throughout the tropics, but their intrafamily relationships and morphological evolution are poorly understood. Here we report the results of parsimony and maximum likelihood (ML)
Clausing, G., Renner, Susanne S.
core   +1 more source

Boswellia oropedionis (Burseraceae) sp. nov., a frankincense tree from Socotra, and notes on B. ameero and B. bullata

open access: yesNordic Journal of Botany, EarlyView.
The new species Boswellia oropedionis Thulin and M.H.Weber is described, illustrated by photographs and mapped. This tree is only known from a small population growing on level limestone on the Qatariyah plateau in southern Socotra and is the twelfth endemic species of Boswellia from the Socotra archipelago. It differs from B.
Mats Thulin   +2 more
wiley   +1 more source

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