O complexo Asplenium aethiopicum (Aspleniaceae, Pteridophyta) nas Ilhas Macaronésicas
نویسندگان
چکیده
منابع مشابه
Isozyme variation and genetic relationships among taxa in the Asplenium obovatum group (Aspleniaceae, Pteridophyta).
The Asplenium obovatum group consists of diploid and tetraploid taxa; the origin of the tetraploid A. obovatum subsp. lanceolatum was previously considered to have occurred via autopolyploidy, involving one of the diploids of the group, either A. obovatum subsp. obovatum var. obovatum or var. protobillotii. To test this hypothesis, electrophoretic analyses of eight enzyme systems encoded by fou...
متن کاملAsplenium merapohense (Aspleniaceae), a new species from the Peninsular Malaysia
A new species of Asplenium is described from two collections made on limestone hills in Peninsular Malaysia. Conspicuous by its extremely narrow pinnae, it is probably allied to A. salignum but differs in sufficient characters (scale size, size and shape of lamina, venation and sorus length, position and orientation) to be a species in its own right.
متن کاملAntioxidant, Larvicidal, and Cytotoxic Studies on Asplenium aethiopicum (Burm. f.) Becherer
The present study was intended to determine the antioxidant, larvicidal, and cytotoxic potential of various extracts of Asplenium aethiopicum (Burm. f.) Becherer. Antioxidant potential of the extracts was determined by the DPPH radical scavenging, phosphomolybdenum, and scavenging of H2O2. Larvicidal activity of Asplenium aethiopicum was performed against the fourth instar larvae Culex quinquef...
متن کاملNAS Parallel Benchmarks I/O Version 2.4
We describe a benchmark problem, based on the Block-Tridiagonal (BT) problem of the NAS Parallel Benchmarks (NPB), which is used to test the output capabilities of high-performance computing systems, especially parallel systems. We also present a source code implementation of the benchmark, called NPBIO2.4MPI, based on the MPI implementation of NPB, using a variety of ways to write the computed...
متن کاملPalynological analysis of Sphaeropteris gardneri (Cyatheaceae, Pteridophyta).
The spore morphology and wall ultrastructure of Sphaeropteris gardneri (Hook.) R.M. Tryon from Brazil were analyzed with LM, SEM and TEM. The spores are trilete with an ornamentation formed of short low ridges with spines in their margins. The exospore is 2.5microm thick, two- layered in section and single or branched channels are present. The perispore is 1.2microm thick and two-layered. The i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Botanica Malacitana
سال: 1991
ISSN: 2340-5074,0210-9506
DOI: 10.24310/abm.v16i.9189