Nathaniel Lord Britton was an American botanist and taxonomist who co-founded the New York Botanical Garden in the Bronx, New York.
Neoraimondia is a genus of medium to large cacti from Peru. The genus is named after the Italian-born Peruvian explorer, naturalist, and scientist, Antonio Raimondi.
Leptocereus is a genus of cacti native to the Greater Antilles. It has been placed in the tribe Leptocereeae or in a broadly defined Echinocereeae.
Pterocereus is a monotypic genus of cactus containing the sole species Pterocereus gaumeri.
Hatiora is a small genus of epiphytic cacti which belongs to the tribe Rhipsalideae within the subfamily Cactoideae of the Cactaceae. Recent taxonomic studies have led to the three species formerly placed in subgenus Rhipsalidopsis being removed from the genus, including the well known and widely cultivated ornamental plants known as Easter cactus or Whitsun cactus.
Rhipsalidopsis is a small genus of flowering plant in the family Cactaceae, native to southern Brazil. Like other members of the tribe Rhipsalideae, its species are epiphytes, growing on trees.
Mila caespitosa is a species of cacti and the only species of the genus Mila. Its generic name is an anagram of Lima, Peru, the city near which the plant is found. The genus was first thought to comprise 13 species, until recent studies suggest they form one very variable species.
Pereskiopsis is a genus of cactus in the subfamily Opuntioideae. Unlike typical cacti, it has persistent fleshy leaves. The genus name refers to its resemblance to the genus Pereskia. Most species are found in Mexico south through Guatemala to Honduras, with one species in Bolivia. The incorrect spelling Peireskiopsis has also been used.
Quiabentia is a genus of cacti, closely related to Pereskiopsis.
Joseph Nelson Rose was an American botanist. He was born in Union County, Indiana. His father died serving during the Civil War when Joseph Rose was a young boy. He later graduated from high school in Liberty, Indiana.
Mary Emily Eaton was an English botanical artist best known for illustrating Britton & Rose's The Cactaceae, published between 1919 and 1923.
Harrisia aboriginum, the west-coast prickly apple or prickly applecactus, is a species of columnar cactus endemic to peninsular Florida, on the Gulf Coast of the counties of Lee, Sarasota County, and Charlotte. Only 12 occurrences are known, and the species is threatened by horticultural collection, shading from fire suppression, competition from invasive flora, and most of all habitat destruction. It is a federally listed endangered species of the United States.
Harrisia fragrans is a rare species of cactus known by the common name fragrant prickly apple. It is endemic to Florida, where it is known only from St. Lucie County. The plant's habitat has been almost completely consumed by development, leading to its rarity. It is a federally listed endangered species of the United States.
Mammillaria spinosissima, also known as the spiny pincushion cactus, is a species of flowering plant in the cactus family Cactaceae, endemic to the central Mexican states of Guerrero and Morelos, where they grow at elevations of approximately 1,600 to 1,900 metres. The species was described in 1838 by James Forbes, gardener of the Duke of Bedford. Botanist David Hunt collected a specimen in 1971, when he located one near Sierra de Tepoztlan, Mexico.
Pelecyphora sneedii is a rare species of cactus known by the common names Sneed's pincushion cactus and carpet foxtail cactus. It is endemic to the Chihuahuan Desert of the southwestern United States and northwestern Mexico. It is a small, variable cactus with a lengthy taxonomic history, and is often subdivided into a number of subspecies or varieties. It is usually found on steep, rocky habitats, primarily of limestone geology, in desert scrub or coniferous forest. A species of conservation concern, P. sneedii faces threats from poaching, urban encroachment, and wildfires.
Gymnocalycium anisitsii is a globular cactus belonging to the family Cactaceae. The specific epithet honors the Hungarian pharmacist Dániel Anisits J. (1856-1911).
Lobivia cinnabarina is a species of cactus first described in 1885.
Deborah Griscom Passmore (1840–1911) was a botanical illustrator for the U.S. Department of Agriculture who specialized in paintings of fruit. Her work is now preserved in the USDA's Pomological Watercolor Collection, and she has been called the best of the early USDA artists. She rose to lead the USDA staff artists, and she became the most prolific of the group, contributing one-fifth of the 7500 paintings in the Pomological Watercolor Collection.
Denmoza is a monotypic genus of cacti. Its only species, Denmoza rhodacantha, is native to northwest Argentina.
Pelecyphora tuberculosa, the corncob cactus, is a species of flowering plant in the family Cactaceae, native to the south-central United States, and northern Mexico.
