Results 71 to 80 of about 2,322 (195)

Plethora of plants – collections of the Botanical Garden, Faculty of Science, University of Zagreb (4): Peonies (Paeonia, Paeoniaceae) and St. John’s Worts (Hypericum, Hypericaceae) [PDF]

open access: yes, 2020
U ovom članku sastavljeni su popisi drvenastih i zeljastih svojta božura (rod Paeonia, porodica Paeoniaceae) i pljuskavica (rod Hypericum, porodica Hypericaceae) uzgajanih u Botaničkom vrtu zagrebačkog Prirodoslovno-matematičkog fakulteta između 1892.
Kovačić, Sanja   +3 more
core   +1 more source

A step back to move forward: an effect of biomass removal on functional traits of clonal and nonclonal herbs during establishment growth

open access: yesNew Phytologist, Volume 249, Issue 5, Page 2300-2310, March 2026.
Summary Establishment growth represents a critical phase in the plant life cycle. In clonal herbs, which depend on developing extensive belowground organs, this stage may be particularly vulnerable due to substantial belowground resource allocation. We hypothesized that such investment constrains tolerance to early disturbance in clonal herbs compared ...
Jana Martínková   +2 more
wiley   +1 more source

Stacked scattering: The key to bright flowers lies in the mesophyll

open access: yesAmerican Journal of Botany, Volume 113, Issue 1, January 2026.
Abstract Premise The coloration of flowers is caused by wavelength‐selective absorption by pigments and scattering of light by floral structures. Although the molecular, physiological, and chemical properties of floral pigments have been studied in considerable detail, how floral structures contribute to the visual signal remains largely unknown.
Larissa De Paola   +5 more
wiley   +1 more source

New Anthracenone and Xanthenones From Tricholaena teneriffae With Antioxidant Activity: In Vitro and In Silico Studies

open access: yesChemistry &Biodiversity, Volume 23, Issue 1, January 2026.
Three novel phenolic compounds and one known benzoxanthenone are isolated from Tricholaena teneriffae. Compounds (1–3) demonstrate potent antioxidant activity, comparable to that of vitamin C, while compound (4) exhibits negligible activity. Docking studies are employed to validate the binding of the compounds to lipoxygenase‐3, providing evidence of ...
Yosra Belghith   +5 more
wiley   +1 more source

Morfoanatomía e histoquímica de Hypericum juniperinum (Hypericaceae) [PDF]

open access: yes, 2019
Hypericum is a genus belonging to the Hypericaceae family, which has 469 species of herbs, trees and shrubs. Two sections in particular: Brathys and Trygynobrathys are an integral part of the Paramo vegetation type.
Marín-Loaiza, Juan-Camilo   +8 more
core   +1 more source

Antioxidant Capacity and Essential Oil Composition of Hypericum thymopsis Boiss. (Hypericaceae) from Turkey

open access: yes, 2021
Antioxidant capacity and essential oil composition of Hypericum thymopsis Boiss. (Hypericaceae), an endemic species, distributed in Turkey was determined. The samples of three different populations were used for the analysis.
Turan ARABACİ   +3 more
core   +1 more source

A new polyketide from the bark of Hypericum roeperianum Schimp. (Hypericaceae)

open access: yes, 2019
The isolation and spectroscopic data of a hitherto undescribed polyketide (1) from Hypericum roeperianum Schimp. (Hypericaceae) together with six known compounds (2–7) is herein reported.
François Damen (7498313)   +8 more
core   +1 more source

Φυτοχημική μελέτη του φυτού: H. kelleri Bald.-Hypericaceae

open access: yes, 2015
Η συγκεκριμένη μεταπτυχιακή εργασία αποτελεί την πρώτη φυτοχημική μελέτη του φυτού Hypericum kelleri Bald.-Hypericaceae. Μελετήθηκε το κυκλοεξανικό και το μεθανολικό εκχύλισμα της δρόγης κάνοντας χρήση διαφόρων χρωματογραφικών μεθόδων: χρωματογραφία ...
Μαθιουδάκη Αγγελική
core   +1 more source

&ITHYPERICUM EKERII&IT (HYPERICACEAE), A NEW SPECIES FROM TURKEY

open access: yes, 2017
Hypericum ekerii Yuce & Aytac sp. nov. (Hypericaceae) is described and illustrated from Duzgun Baba Mountain in Eastern Anatolia, Turkey. The new taxon grows on volcanic rocks in Tunceli Province. It is closely related to H. capitatum Choisy s.l.
AYTAÇ, ZEKİ   +2 more
core  

A REVISION OF THE GENUS ASCYRUM (HYPERICACEAE)

open access: yes, 1957
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

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