Question: Which genus of plants has less species, Aphyllanthes or Furcraea?

Context paragraphs:
Eriocaulon: Eriocaulon is a genus of about 400 species commonly known as pipeworts, of monocotyledonous flowering plants in the family Eriocaulaceae.  The genus is widely distributed, with the centers of diversity for the group occurring in tropical regions, particularly southern Asia and the Americas.  A few species extend to temperate regions, with ca. 10 species in the United States, mostly in the southern states from California to Florida, and only two species in Canada; China has 35 species, also mostly southern.  Only one species ("E. aquaticum") occurs in Europe, where it is confined to the Atlantic Ocean coasts of Scotland and Ireland; this species also occurs in eastern North America and is thought to be a relatively recent natural colonist in Europe.  In the Americas, "Eriocaulon" is the only genus in its family that occurs north of Florida.  They tend to be associated with wet soils, many growing in shallow water, in wetlands, or in wet savannas like flatwoods.  In wet soils, their abundance appears to be related to water levels, fire frequency, and competition from other plants such as grasses.  Experiments have shown that they are weak competitors compared to many other wetland plant species.  Some species can persist as buried seeds during unfavorable conditions.  The scientific name is derived from Ancient Greek εριον, "erion", meaning 'wool', and καυλός, "caulos", meaning 'stalk'.

Pioneer species: Pioneer species are hardy species which are the first to colonize previously disrupted or damaged ecosystems, beginning a chain of ecological succession that ultimately leads to a more biodiverse steady-state ecosystem.  Some lichens grow on rocks without soil, so may be among the first of life forms, and break down the rock into soil for plants.  Since some uncolonized land may have thin, poor quality soils with few nutrients, pioneer species are often hardy plants with adaptations such as long roots, root nodes containing nitrogen-fixing bacteria, and leaves that employ transpiration.  Note that they are often photosynthetic plants, as no other source of energy (such as other species) except light energy is often available in the early stages of succession, thus making it less likely for a pioneer species to be non-photosynthetic.  The plants that are often pioneer species also tend to be wind-pollinated rather than insect-pollinated, as insects are unlikely to be present in the usually barren conditions in which pioneer species grow; however, pioneer species tend to reproduce asexually altogether, as the extreme or barren conditions present make it more favourable to reproduce asexually in order to increase reproductive success rather than invest energy into sexual reproduction.  Pioneer species will die creating plant litter, and break down as "leaf mold" after some time, making new soil for secondary succession (see below), and nutrients for small fish and aquatic plants in adjacent bodies of water.

Aphyllanthes: Aphyllanthes is a genus of flowering plants with only one species, Aphyllanthes monspeliensis, endemic to the western Mediterranean region.  It is the only genus in the Aphyllanthoideae, a subfamily of the family Asparagaceae.  Aphyllanthoideae was formerly treated as a separate family, Aphyllanthaceae.

Furcraea: Furcraea is a genus of succulent plants belonging to the family Asparagaceae, subfamily Agavoideae, native to tropical regions of Mexico, the Caribbean, Central America and northern South America.  Some species are also naturalized in parts of Africa, Florida, Portugal, Thailand, India, and Australia, as well as on various oceanic islands.

Zeltnera: Zeltnera is a genus of flowering plants in the gentian family.  It was erected in 2004 when the genus "Centaurium" (the centauries) was split.  Genetic analysis revealed that "Centaurium" was polyphyletic, made up of plants that could be grouped into four clades. Each became a genus.  "Centaurium" remained, but it is now limited to the Eurasian species.  The Mexican species now belong to genus "Gyrandra", and the Mediterranean and Australian plants are in genus "Schenkia".  The new name "Zeltnera" was given to this genus, which contains most of the North American centauries.  There are about 25 species.

Forest degradation: Forest degradation is a process in which the biological wealth of a forest area is permanently diminished by some factor or by a combination of factors.  "This does not involve a reduction of the forest area, but rather a quality decrease in its condition."  The forest is still there, but with less number of trees, or less species of trees, plants or animals, or some of them affected by plagues.  This degradation makes the forest less valuable and may lead to deforestation.  Forest degradation is a type of the more general issue of land degradation.

Hibiscus: Hibiscus ( or ) is a genus of flowering plants in the mallow family, Malvaceae.  The genus is quite large, comprising several hundred species that are native to warm-temperate, subtropical and tropical regions throughout the world.  Member species are renowned for their large, showy flowers and are commonly known simply as hibiscus, or less widely known as rose mallow.  The genus includes both annual and perennial herbaceous plants, as well as woody shrubs and small trees.  The generic name is derived from the Greek word ἱβίσκος ("hibískos"), which was the name Pedanius Dioscorides ( 40–90) gave to "Althaea officinalis".

Macanavirus: Macanavirus is a genus of viruses, in the family Tombusviridae.  Plants serve as natural hosts.  There is currently only one species in this genus: the type species "Furcraea necrotic streak virus".  Diseases associated with this genus include: macana disease.

Cyrtandra (plant): Cyrtandra is a genus of flowering plants containing about 600 species, with more being discovered often, and is thus the largest genus in the family Gesneriaceae.  These plants are native to Southeast Asia, Australia, and the Pacific Islands, with the centre of diversity in Southeast Asia and the Malesian region.  The genus is common, but many species within it are very rare, localized, endangered endemic plants.  The species can be difficult to identify because they are highly polymorphic and because they readily hybridize with each other.  The plants may be small herbs, vines, shrubs, epiphytes, or trees.  The genus is characterized in part by having two stamens, and most species have white flowers, with a few red-, orange-, yellow- and pink-flowered species known.  Almost all species live in rainforest habitats.

Berberomeloe: Berberomeloe is a genus within the tribe Lyttini of the family Meloidae, the oil or blister beetles.  It includes two species, the red-striped oil beetle, "Berberomeloe majalis", and the less flamboyant "Berberomeloe insignis".  Until recently these species were included in the genus "Meloe", which is treated in the tribe Meloini; the placement of what was previously called "Meloe majalis" instead in a genus within the tribe Lyttini was proposed by Bologna (1988) and has commanded general acceptance.  As Bologna notes, it had long been known that the larval development of the red-stripted oil beetle was very different from that of most species placed in "Meloe", so that some authors treated it within the Lyttini genus "Trichomeloe".  However the species does not fit into any other genus of Lyttini, having a unique combination of autapomorphic characters, namely reduced elytra, no wings and modified antennae, so Bologna proposed the new genus.  Bologna envisaged that other species currently placed in "Meloe" might be found to be anomalous once their larval development was studied in full.  However, the addition of a second species to "Berbermeloe" came by a different route: García-Paris (1998).  revived the name "insignis", which had been thought to be merely a synonym for "majalis", to describe a rare, distinct population endemic to the Spanish provinces of Granada, Almería and Murcia.  Individuals of this type differed from typical "B. majalis" in several anatomical characteristics, and hence García-Paris argued that they should be given species status and should also be placed in "Berberomeloe".  The genus 'Berberomeloe" is endemic to the Western Mediterranean, specifically the Iberian peninsula, France, Algeria, Morocco and Tunisia.

Supporting paragraphs: Aphyllanthes Furcraea
Answer: Aphyllanthes