Question: Selaginella and Desfontainia, are what kind of item?

Context paragraphs:
Fair item assignment: Fair item assignment is a kind of a fair division problem in which the items to divide are "indivisible".  The items have to be divided among several partners who value them differently, and each item has to be given as a whole to a single person.  This situation arises in various real-life scenarios:

Sports memorabilia: The term sports memorabilia usually refers to a souvenir, memento, keepsake or token of remembrance that is directly connected to a famous athlete, sporting event or personality.  These items are generally collected by fans that find sentimental and/ or monetary value of the item(s).  There is no set parameter regarding the amount of items, type of sport, or even the era that an item may reflect.  A piece of certain kind may be considered a collectable item.

Pidiyum kozhiyum: Pidiyum Kozhiyum is a traditional food item of St. Thomas Christians in Kerala, especially of Syrian Jacobites,Syro-Malabar Catholics and Knanaya Catholics.  It is a kind of dish which can be both used in Breakfast or Dinner.  Term 'Pidi' stands for a whitish semi-liquid dish with small boiled balls of finely powdered rice.  Term 'Kozhi' in 'Pidiyum Kozhiyum' stands for chicken curry, which is prepared with traditional ingredients.  This dish is often considered as a healthy food item due to its richness in fibers, proteins and carbohydrates.

Desfontainia: Desfontainia is a genus of flowering plants placed currently in the family Columelliaceae, though formerly in Loganiaceae, Potaliaceae (now subsumed in Gentianaceae), or a family of its own, Desfontainiaceae.

Quadratic knapsack problem: The quadratic knapsack problem (QKP), first introduced in 19th century, is an extension of knapsack problem that allows for quadratic terms in the objective function: Given a set of items, each with a weight, a value, and an extra profit that can be earned if two items are selected, determine the number of item to include in a collection without exceeding capacity of the knapsack, so as to maximize the overall profit.  Usually, quadratic knapsack problems come with a restriction on the number of copies of each kind of item: either 0, or 1.  This special type of QKP forms the 0-1 quadratic knapsack problem, which was first discussed by Gallo et al.

Tag (metadata): In information systems, a tag is a keyword or term assigned to a piece of information (such as an Internet bookmark, digital image, database record, or computer file).  This kind of metadata helps describe an item and allows it to be found again by browsing or searching.  Tags are generally chosen informally and personally by the item's creator or by its viewer, depending on the system, although they may also be chosen from a controlled vocabulary.

Internet refrigerator: Internet refrigerator (also known as a smart refrigerator) is a refrigerator which has been programmed to sense what kinds of products are being stored inside it and keep a track of the stock through barcode or RFID scanning.  This kind of refrigerator is often equipped to determine itself whenever a food item needs to be replenished.

Selaginella: Selaginella is the sole genus of primitive vascular plants in the family Selaginellaceae, the spikemosses or lesser clubmosses.

Pineapple bun: A pineapple bun () is a kind of sweet bun predominantly popular in Hong Kong and Canada, though they are also common in Chinatowns worldwide.  It is known in Cantonese as "bo lo baau", in which "bo lo" means "pineapple", and "baau" refers to a kind of bun-like item in Chinese cuisine.

Fane of Shadows: The Fane of Shadows is a temple that journeys the worlds on the currents of the secret Weave, in the fictional setting of the Forgotten Realms campaign in "Dungeons & Dragons".  The place has many names in many tongues, and is also known as the Temple of Night or the Umbral Shrine.  Created by Shar, it serves as many dark gods of many worlds, and as a gift of the god of shadows to their faithful—a sanctuary that journeys through time and worlds.  It also serves as a bastion/armory for the servants of the twilight.  It is located within the Lightless Lake (The Moonmere) in the Gulthmere Forest, but it only materializes during a certain date at midnight, and stays only temporarily in each world for a short time.  Upon its arrival onto Toril, the Fane appeared within the depths of the Lightless Lake in a diffuse, ochre light.  The entirety of the temple is situated on an invisible platform encapsulated within a dome of air.  The architecture includes black-veined columns, graceful arches, and thick pillars all crafted from marble, basalt, obsidian, or ebony.  The Fane of Shadows is guarded by a host of shadows inside the courtyard area.  They are only hostile to those not subservient to shadow.  The courtyard contains a statue garden of hundreds of obsidian sculptures, all of them depicting the innumerable world's gods of shadow.  Statues of Toril's deities of night and shadow, Shar and Mask, are among the collection.  Beyond its doors it contains a long, wide hallway, the Grand Hall, filled with shadows and bathed in a low, green light.  Painting and mosaics line the walls, while tables and pedestals are hidden inside alcoves along it.  These alcoves usually hold an item of great power, one of the many gifts of shadow found within.  Only one gift may be taken from the Fane of Shadows.  A husky, female voice tries to persuade its guests in a perceived, familiar tongue into taking an item of power.  The Grand Hall also contains the caretaker of the temple, who materializes from the shadows.  He is an elderly man, with solid black eyes, and his duty is to serve his calling into the shadow.  The hallway ends at a pair of double doors, which leads into the inner sanctum.  The inner sanctum contains a skydome ceiling of black encrusted in gems, representing the night sky of the world in which it currently exists in.  The inner sanctum itself has a polished slate floor inlaid with an amethyst border, and in its center lies a black sphere bordered in purple, Shar's symbol.  A horsehoe-shaped altar lies in the center of the symbol on some kind of black crystalline substance, under an area of ceiling of the blackest black, depicting Shar's moon.  It is underneath this symbol where a host receives the transforming energy of the greatest gifts offered by the Shadow Weave: the transformation into a shade.  Black curtains line the walls of the inner sanctum, as well as a mosaic of the Weave Tap.  Entrance into the Fane of Shadows requires either being adept in the Shadow Weave, or reverence to a god or goddess of shadow.

Supporting paragraphs: Selaginella Desfontainia
Answer: plants