| Noveloa | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Podostemaceae |
| Genus: | Noveloa C.T.Philbrick |
| Species | |
| |
Noveloa is a genus of aquatic flowering plants in the family Podostemaceae. Species of the genus are distributed across north and west Mexico in seasonally dry tropical areas, [1] and plants are found in shallow, clear, fast-flowing rivers. [2]
Noveloa was formally described in 2011 by C. Thomas Philbrick, and was named in honor of Alejandro Novelo Retana, an aquatic angiosperm researcher. It was split from the genus Oserya and is composed of two Central American species: Noveloa coulteriana and Noveloa longifolia. [3]
Noveloa coulteriana was originally described as Oserya coulteriana in 1849 by Edmond Tulasne and is the type species of the genus. Noveloa longifolia was originally described as Oserya longifolia in 1995 by Philbrick and Retana. [3] It is found only in the states of Jalisco and Colima. [4]
Noveloa shares most of its characteristics with Oserya, but varies in a few key ways. The leaf veins are dichotomous or subdichotomous, with all or most of them splitting in two. It also has between one and three stamens (as opposed to one), and its seed capsules have six ribs (as opposed to ten). [3]
Species in the genus are annual or perennial plants and small herbs. They have flat roots that grow along the surface. The stems grow out sideways from the roots, with leaves arranged on opposite sides of the stem in an alternating pattern. The leaf stem has a circular or flat cross-section. [3]
The flowers are bilaterally symmetrical and are hermaphroditic. Each flower is borne by one pedicel, and is covered in a sac-like structure with a club shape. The petals and sepals are indistinguishable, and there are 2–4 on a flower. There are 1–3 stamens per flower, which have anthers that are connected to the filament at their base. Each seed capsule has an average of 32 seeds, but there can be 0–85 at each extreme. [3]
There are several ways to tell N. longifolia from N. coulteriana. The former is larger, with longer leaves but shorter petals. The leaf stem of N. longifolia is circular in cross-section and has visible spines, while in N. coulteriana it is flattened and does not have spines. [5]
When N. coulteriana seeds are moistened, they secrete a sticky mucus substance before they germinate. They require rich red light to germinate, but are inhibited by far-red light. The seeds are incapable of becoming dormant; as such, they remain viable for less than six months. However, they do have a high rate of sprouting. This style of reproduction is different from other Mexican species of the family, like Marathrum foeniculaceum , M. plumosum , and Tristicha trifaria . Because of increasing pollution in the rivers, more of the light that the plants receive is far-red light, which could reduce germination of the species. [2]
Hypericum is a genus of flowering plants in the family Hypericaceae. The genus has a nearly worldwide distribution, missing only from tropical lowlands, deserts and polar regions. Many Hypericum species are regarded as invasive species and noxious weeds. All members of the genus may be referred to as St. John's wort, and some are known as goatweed. The white or pink flowered marsh St. John's worts of North America and eastern Asia are generally accepted as belonging to the separate genus TriadenumRaf.
Nymphaea is a genus of hardy and tender aquatic plants in the family Nymphaeaceae. The genus has a cosmopolitan distribution. Many species are cultivated as ornamental plants, and many cultivars have been bred. Some taxa occur as introduced species where they are not native, and some are weeds. Plants of the genus are known commonly as water lilies, or waterlilies in the United Kingdom. The genus name is from the Greek νυμφαία, nymphaia and the Latin nymphaea, which mean "water lily" and were inspired by the nymphs of Greek and Latin mythology.
Podostemaceae, a family in the order Malpighiales, comprise about 50 genera and c. 300 species of more or less thalloid aquatic herbs.
Lathyrus japonicus, the sea pea, beach pea, circumpolar pea or sea vetchling, is a species of flowering plant in the legume family Fabaceae, native to temperate coastal areas of the Northern Hemisphere, and Argentina.
Dicentra cucullaria, Dutchman's britches, or Dutchman's breeches, is a perennial herbaceous plant, native to rich woods of eastern North America, with a disjunct population in the Columbia Basin.
Platystemon is a monotypic genus of flowering plants in the poppy family containing the single species Platystemon californicus, which is known by the common name creamcups. It is native to Oregon, California, Arizona, Utah and Baja California, and is found in open grasslands and sandy soils below 6,000 feet (1,800 m) elevation.
Draba verna, common whitlowgrass, is a species of plant in the cabbage family. It is a small spring-flowering annual which is widely dispersed around the world, and which is found on walls, pavements and patches of bare ground. It has a complex taxonomy which is not yet fully elucidated.
This page provides a glossary of plant morphology. Botanists and other biologists who study plant morphology use a number of different terms to classify and identify plant organs and parts that can be observed using no more than a handheld magnifying lens. This page provides help in understanding the numerous other pages describing plants by their various taxa. The accompanying page—Plant morphology—provides an overview of the science of the external form of plants. There is also an alphabetical list: Glossary of botanical terms. In contrast, this page deals with botanical terms in a systematic manner, with some illustrations, and organized by plant anatomy and function in plant physiology.
Nymphoides peltata is perennial, rooted aquatic plant with floating leaves of the family Menyanthaceae.
This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary of leaf morphology. For other related terms, see Glossary of phytopathology, Glossary of lichen terms, and List of Latin and Greek words commonly used in systematic names.
Leptospermum lanigerum, commonly known as the woolly teatree, is a small tree or medium shrub from the plant family Myrtaceae. Its common name derives from the conspicuously hairy capsules produced as fruit, along with the fine, silky hairs present on branches and leaves. L. lanigerum is widespread in many habitats, particularly in waterlogged areas such as moist, sandy coastal heaths, on river banks, riparian scrub, woodlands and on the fringe of montane grasslands. This species is endemic to Australia, with native populations occurring in New South Wales, South Australia, Tasmania and Victoria.
Pittosporum bicolor, commonly known as cheesewood or banyalla, is a flowering shrub or small tree of the family Pittosporaceae, and is native to south eastern Australia.
Ceratophyllum echinatum, known as prickly hornwort, spiny hornwort, or spiny coontail, is an aquatic, perennial plant found in North America. Its name comes from fruits, which have a warty surface and long spines. Spiny hornwort can be found in ponds and lakes, principally in eastern North America. It is the only species of its genus endemic to North America.
Meconopsis horridula, the prickly blue poppy, is a flowering plant from the family Papaveraceae. It is an endangered species that grows in high altitudes. The height of the plant varies from 20 cm to 1m. It is a monocarpic, dicot plant.
Mabrya is a genus of flowering plants in the plantain family, Plantaginaceae. It consists of herbaceous perennials with brittle upright or drooping stems, found in dry areas of Mexico and the southern United States.
Podostemum is a genus of flowering plants in the family Podostemaceae. It is an aquatic plant with threadlike roots that attaches to rocks. It includes 11 species native to the Americas, ranging from eastern Canada through the eastern and south-central United States, and from southern Mexico to northeastern Argentina.
Hypericum assamicum is a species of flowering plant in the St. John's wort family, Hypericaceae. It is endemic to India. Hypericum assamicum is one of two species of Hypericum in the section Hypericum sect. Sampsonia.
Podostemum ceratophyllum, commonly known as the hornleaf riverweed, is a species of submerged aquatic plant in the family Podostemaceae. It is native to eastern North America where it grows on hard bottoms in swiftly flowing rivers and streams and is considered a foundation species.
Marathrum is a genus of flowering plants belonging to the family Podostemaceae.
Noveloa longifolia is a species of flowering plant in the riverweed family Podostemaceae. It is native to river rapids in the Mexican states of Jalisco and Colima.