CONTRIBUTIONS TO THE STUDY OF ANDRYALA LEVITOMENTOSA (E. I. NYÁRÁDY) P.D. SELL REPRODUCTIVE STRUCTURES ANATOMY
Journal Title: Analele Stiintifice ale Universitatii Alexandru Ioan Cuza din Iasi, Serie noua, Sectiunea II a. Biologie vegetala - Year 2009, Vol 55, Issue 2
Abstract
The paper treats A. levitomentosa reproductive structures from an anatomical point of view. The species exhibited traits that are common in the Asteraceae family but also a few peculiarities such as a possibly five-carpel ovary, free non connate anthers and filaments fused to the corolla at different levels. Early stage embryos but no seeds were observed. Crystals have a presence limited to only certain areas: the integument, the ovary plateau, the anther walls and the connective.
Authors and Affiliations
B. MINEA, IRINA GOSTIN
BUTOMUS UMBELLATUS MORPHO-STRUCTURAL CONSIDERATIONS ON ADAPTIVE PLASTICITY
This work points out a series of adaptive modifications of the species Butomus umbellatus L. as an answer to the variations of water factor. Being one of the plants evaluated as dominant in the Romanian part of the Danub...
CONTRIBUTIONS TO THE STUDY OF THE ASSOCIATIONS FROM QUERCO – FAGETEA BR. – BL. ET VLIEGER IN VLIEGER 1937 CLASS, FROM BISTRIŢA RIVER BASIN, PIATRA NEAMŢ – BACĂU SECTOR
The paper presents two associations from Querco – Fagetea Br. – Bl. et Vlieger in Vlieger 1937 class, respective Telekio speciosae – Alnetum incanae Coldea 1990 with three sub-associations (typicum Coldea 1991, petasitet...
STUDIES CONCERNING THE HISTO-ANATOMY AND BIOCHEMISTRY OF MENTHA LONGIFOLIA (L.) HUDS. DURING VEGETATIVE PHENOPHASE
The article analyzed the histo-anatomy of the vegetative organs of species Mentha longifolia (L.) Huds collected from Negreşti (Vaslui). On the surface of the vegetative organs was identified the presence of tector...
[b][/b]RESEARCHES ON PTERIDOPHYTES FROM VÂLSAN VALLEY PROTECTED AREA (ARGEŞ COUNTY, ROMANIA)
Long-term observations of pteridophyte populations can reveal how they respond to abiotic and biotic changes in their environment. The research was done in the Vâlsan Valley, Argeş county, in the Vâlsan Valley Natural Re...
NEW LOCATION OF THE CRITICALLY ENDANGERED ASTRAGALUS PENDULIFLORUS LAM. IN BUCEGI NATURE PARK (BUCEGI MTS., SOUTH-EASTERN CARPATHIANS)
The distribution of the very rare and threatened species, Astragalus penduliflorus Lam., in the South-Eastern Carpathians is reviewed and mapped using herbarium materials and existing bibliographic sources. The species i...