Julius Arthur Nieuwland

Triodanis perfoliata, the clasping Venus' looking-glass or clasping bellflower, is an annual flowering plant belonging to the family Campanulaceae (bellflower family). It is an annual herb native to North and South America, the natural range extending from Canada to Argentina. It is also naturalized in China, Korea and Australia.

Pennellia is a genus of flowering plants belonging to the family Brassicaceae. Its native range is from western central and southern central USA (Arizona, Colorado, New Mexico and Texas) and Mexico, to Central America (Costa Rica and Guatemala), Bolivia to southern South America (Argentina and Chile). The genus name of Pennellia is in honour of Francis W. Pennell (1886–1952), an American botanist best known for his studies of the Scrophulariaceae. It was first described and published in Amer. Midl. Naturalist Vol.5 on page 224 in 1918.

Thamnobryum is a genus of moss in the family Neckeraceae. There are about 50 species. The genus is distributed throughout the world.

Triodanis leptocarpa, commonly called slimpod Venus' looking-glass, is a species of flowering plant in the bellflower family (Campanulaceae). It is native to the United States, where it is found primarily in the Great Plains and Midwest. Its natural habitat is in dry upland prairies and open rock outcrops. It is tolerant of disturbance and can be found in pastures and roadsides. Triodanis leptocarpa is an herbaceous annual. It can be distinguished from other members of the genus Triodanis by its long, narrow leaves and fruits with a single locule. In addition, the fruits from cleistogamous

Thamnobryum angustifolium, the Derbyshire feathermoss, is a species of moss in the Neckeraceae family. It is endemic to Derbyshire, England, being restricted to a single SSSI, where the main colony covers about 3 square metres (32 sq ft) of a single rock face, with small subsidiary colonies nearby. Threats include disturbance from cavers and climbers, collection by bryologists, pollution of the spring in which it grows, and desiccation during periods of drought. Its natural habitat is rivers. Because of its extreme rarity and localised occurrence, the species has its own individual

Persicaria bicornis is a North American species of flowering plant in the buckwheat family (Polygonaceae). The common name is pink smartweed. It is native to the central and southwestern United States from northern Texas west to Arizona, east to Louisiana, and north as far as eastern Wyoming, South Dakota, Iowa, and Illinois.

Coryphopteris simulata, synonym Thelypteris simulata, is a species of fern native to the Northeastern United States. It is known by two common names: bog-fern and Massachusetts fern. It is often confused with the silvery spleenwort, New York fern, and the marsh fern due to similarities in shape and size.

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Thamnobryum alleghaniense, the Allegany thamnobryum moss, is located in temperate regions, mostly in the Northern Hemisphere. This moss has drooping branches at the top of a standing stem, resembling small trees in a micro forest. T. alleghaniense is common on rocks in moist, wet, and shady gorges and ravines. Leaf shape is ovate (-oblong), sometimes lanceolate or ligulate. Seta is 10-25mm. Contain dioecious reproduction, and rarely polyocious.

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Leucocoma is a genus of flowering plants belonging to the family Ranunculaceae. Species: Leucocoma albens Lunell Leucocoma vegeta Lunell

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