Question: What is one other type of plant the Krapfia is related to?

The classification is based on similarities at the tertiary and primary structural levels.  Comparisons are restricted to that part of the sequence directly involved in the reaction, which in the case of a peptidase must include the active site, and for a protein inhibitor the reactive site.  The classification is hierarchical: sequences are assembled into families, and families are assembled into clans.  A family is assembled around a "type example", the sequence of a well-characterized peptidase or inhibitor.  All other sequences in the family must be related to the family type example, either directly or through a transitive relationship involving one or more sequences already shown to be family members.  Typically, FastA or BlastP are used to establish sequence relationships, with an expect value of 0.001 or lower taken to be statistically significant.  A clan is also assembled around a type example, this being the structure of a well-characterized peptidase or inhibitor.  A family is included in a clan if the tertiary structure of a family member can be shown to be related to that of the clan type example.  Typically, DALI is used to establish clan membership, with a z score of 6.00 standard deviation units or above considered to be statistically significant.  For peptidases, other evidence to indicate that families are related when a tertiary structure is absent includes the same order of catalytic residues in the sequences. <SEP> Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.  This includes the flowering plants, conifers and other gymnosperms, ferns, clubmosses, hornworts, liverworts, mosses and the green algae, and excludes the red and brown algae.  The term is today generally limited to the green plants, which form an unranked clade Viridiplantae (Latin for "green plants").  Historically, plants formed one of two kingdoms covering all living things that were not animals, and both algae and fungi were treated as plants; however all current definitions of "plant" exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). <SEP> Krapfia is a genus of plants in the Ranunculaceae family, native to the Andes. <SEP> Heliamphora uncinata is a species of Marsh Pitcher Plant endemic to Venezuela.  This species of carnivorous plant is known as a pitcher plant.  Individuals use tube like leaves to trap insects that slip into the bottom.  At the bottom of the "pitcher" there are digestive juices which slowly digest the prey item to give the plant additional nutrients.  The pitchers of this species are around 25–35 cm long, and are 8–10 cm wide at the opening.  The pitcher mouth is circular in shape and the back is raised to form the lid.  It is known only from the type collection, which was made in a narrow canyon on Amurí-tepui.  There it grows at an elevation of approximately 1850 m on sandstone cliff faces in shady conditions.  It is also found in humus pockets and cracks at this location.  The only other species in the genus known to have a similar growth habit is "H. exappendiculata".  These two taxa also share a number of morphological features and appear to be closely related.  These shared morphological features include: the shape of pitchers, the general growth pattern, and appearance of nectaries (nectar producing organs).