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Selaginella canaliculata Selaginella selaginoides Selaginella willdenowii is known for its iridescent colours. There are about 750 known species of Selaginella. [21] They show a wide range of characters; the genus is overdue for a revision which might include subdivision into several genera. [citation needed] Species of spikemoss include:
Exarch protosteles are a defining characteristic of the lycophyte lineage. plectostele – a protostele in which plate-like regions of xylem appear in transverse section surrounded by phloem tissue, thus appearing to form alternating bands. [8] These discrete plates are interconnected in longitudinal section.
Selaginella moellendorffii is a lycophyte that is an important model organism, especially in comparative genomics. S. moellendorffii is a member of an ancient vascular plant lineage that first appeared in the fossil record some 400 million years ago. They would later form a dominant part of the world's flora during the Carboniferous period.
Selaginella aboriginalis C.Schulz & Homberg Selaginella acanthonota Underw. Selaginella acanthostachys Baker Selaginella achotalensis Shelton & Caluff Selaginella aculeatifolia Valdespino Selaginella acutifolia (Stolze) Valdespino Selaginella adunca A.Braun ex Hieron. Selaginella aenea Warb. Selaginella agioneuma Valdespino & C.López Selaginella aitchisonii Hieron. Selaginella alampeta M ...
They are defined by two synapomorphies: lateral rather than terminal sporangia (often kidney-shaped or reniform), and exarch protosteles, in which the protoxylem is outside the metaxylem rather than vice versa.
Selaginella selaginoides is a non-flowering plant of the spikemoss genus Selaginella with a wide distribution around the Northern Hemisphere. It resembles a moss in appearance but is a vascular plant belonging to the division Lycopodiophyta .
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Mushroom bodies visible in a Drosophila brain as two stalks. From Jenett et al., 2006 [1] The mushroom bodies or corpora pedunculata are a pair of structures in the brain of arthropods, including insects and crustaceans, [2] and some annelids (notably the ragworm Platynereis dumerilii). [3] They are known to play a role in olfactory learning ...