Mindblown: a blog about philosophy.

(In nomenclature) synonym based on the same type as another synonym; also known as an obligate, objective or nomenclatural synonym. The synonymy of the two names is not a matter of taxonomic opinion but absolute.  

Of a species with flowers with styles (and usually stamens) uniformly positioned.  

Of a species with flowers with styles (and usually stamens) uniformly positioned.  

(In pteridophytes) with spores of one kind. In botany, having but one kind of spore.  

In cladistics) convergent evolution but independent origin, with a shared character that is similar but not derived from a common ancestor.  

(Of a plant or species) with leaves of one kind, as opposed to heterophyllous.  

(In nomenclature) identical names for different taxa (of which only one name can be correct).  

With only one kind of flower in a single species of plant.  

(In cladistics) similarity owing to a common ancestor. A sequence of amino acids in two or more proteins that are identical to each other. Nucleic-acids homology refers to complementary strands that can hybridize with each other. Similarity due to common origin. Similarity in structure but not necessarily in function; the opposite of analogy.  

Similar in origin and structure but not necessarily in function. Corresponding in structure, position, origin, etc., as (a) the feathers of a bird and the scales of a fish, (b) antigen and its specific antibody, (c) allelic chromosomes. Chromosomes or chromosome segments that are identical with respect to their constituent genetic loci and their visible…