Results 81 to 90 of about 1,004 (148)

The Immense Diversity of Floral Monosymmetry and Asymmetry Across Angiosperms [PDF]

open access: yes, 2018
Floral monosymmetry and asymmetry are traced through the angiosperm orders and families. Both are diverse and widespread in angiosperms. The systematic distribution of the different forms of monosymmetry and asymmetry indicates that both evolved numerous
Endress, Peter
core  

Parallel evolution of TCP and B-class genes in Commelinaceae flower bilateral symmetry [PDF]

open access: yes, 2012
Background Flower bilateral symmetry (zygomorphy) has evolved multiple times independently across angiosperms and is correlated with increased pollinator specialization and speciation rates.
Hileman, Lena C, Preston, Jill C
core   +4 more sources

Progress and problems in the assessment of flower morphology in higher-level systematics [PDF]

open access: yes, 2018
Floral features used for characterization of higher-level angiosperm taxa (families, orders, and above) are assessed following a comparison of earlier (precladistic/premolecular) and current classifications.
Endress, Peter, Matthews, Merran
core  

IDENTIFIKASI TUMBUHAN TINGKAT TINGGI (PHANEROGAMAE) DI KECAMATAN PERCUT SEI TUAN [PDF]

open access: yes, 2023
Penelitian ini bertujuan untuk mengetahui tumbuhan tingkat tinggi (Phanerogamae) di Kecamatan Percut Sei Tuan. Survei dilakukan pada hari kamis 1 oktober 2023 di Kecamatan Percut Sei Tuan pada 3 desa, yaitu Desa Laut Dendang, Desa Bandar Setia dan Desa ...
Achyari, Putri Rizq   +5 more
core   +1 more source

Long-term monitoring across elevational gradients to assess ecological hypothesis : a description of standardized sampling methods in oceanic islands and first results [PDF]

open access: yes, 2014
We are launching a long-term study to characterize the biodiversity at different elevations in several Azorean Islands. Our aim is to use the Azores as a model archipelago to answer the fundamental question of what generates and maintains the global ...
Ah-Peng, Claudine   +6 more
core  

Порівняльна морфологія квітки роду Sansevieria Thunb. (Asparagaceae S. L.) та споріднених таксонів [PDF]

open access: yes, 2017
В роботі вперше описано мікроморфологію і васкулярну анатомію квіток в родах Sansevieria Thunb., Dracaena Vand. ex L., Asparagus L., Ruscus L., Polygonatum Mill., Convallaria L., Maianthemum L., Anthericum L., Cordyline Comm. еx R.
Fishchuk, Oksana S.   +1 more
core   +1 more source

Constructing a broadly inclusive seed plant phylogeny [PDF]

open access: yes, 2018
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/143673/1/ajb21019_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/143673/2/ajb21019 ...
Antonelli A.   +3 more
core   +1 more source

Angiosperm ovules: diversity, development, evolution [PDF]

open access: yes, 2017
Background Ovules as developmental precursors of seeds are organs of central importance in angiosperm flowers and can be traced back in evolution to the earliest seed plants.
Endress, Peter K.
core  

Morfología, taxonomía y caracterización de siete especies neotropicales del género Canna (Cannaceae, Zingiberales) [PDF]

open access: yes, 2008
Se investigaron los caracteres de rizomas, hojas, inflorescencias, flores, granos de polen y semillas de siete especies del género Canna con el fin de evaluar su valor diagnóstico. Las especies estudiadas fueron: C. ascendens, C. coccinea, C. compacta, C.
Ciciarelli , María De Las Mercedes   +1 more
core   +1 more source

Descrição da biodiversidade terrestre dos Açores [PDF]

open access: yes, 2005
Os Açores constituem um arquipélago de nove ilhas oceânicas isoladas, onde os organismos terrestres chegaram através do vento, do mar, noutros animais e, nos tempos históricos, com a ajuda humana.
Borges, Paulo A. V.   +8 more
core  

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