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These plants have adapted to continuous drought and are able to retain great amounts of water. These species are characteristic of the warm and dry regions of America.

Cacti

These plants have adapted to continuous drought and are able to retain great amounts of water. These…

Illustrated are seeds of cacti. The seeds are (1) mamillaria, (2) cereus, (3) flat-jointed opuntias, (4) echinocereus, and (5) cylindrical opuntias.

Seeds of Cacti

Illustrated are seeds of cacti. The seeds are (1) mamillaria, (2) cereus, (3) flat-jointed opuntias,…

Various species of cacti. a, Saguaro (Cereus giganteus); b, Paddle Cactus (Opuntia coccinellifera); c, Fishhook Cactus (Mammillaria pectinata); d, Orchid Cactus (Phyllocactus anguliger).

Various Cacti

Various species of cacti. a, Saguaro (Cereus giganteus); b, Paddle Cactus (Opuntia coccinellifera);…

"Flowers often grow out of the cacti in a very unexpected fashion and of very curious forms. We give illustration of a variety, whose flower very much resembles a starfish." -Lupton

The Starfish Cactus

"Flowers often grow out of the cacti in a very unexpected fashion and of very curious forms. We give…

There are sixteen types of cacti pictures. Those varieties include opuntia, cereus, opuntia streptacantha, cereus candicans, mammillaris, cereus peruvianus monstrosus, echinocereus electracanthus, mammillaria, echinopsis formosa, echinocactus visnaga, cereus peruvianus var, opuntia candelabriformis, cereus strictus, pilocereus senilis, cereus tweedii, and cereus chilensis.

Group of Cacti

There are sixteen types of cacti pictures. Those varieties include opuntia, cereus, opuntia streptacantha,…

The flowers of malacocarpus erinaceus are straw colored. When the flowers are in bud they are clothed with long silky brown hairs. The plant is bullet shaped with a very slight depressed top.

Malacocarpus Erinaceus

The flowers of malacocarpus erinaceus are straw colored. When the flowers are in bud they are clothed…

Mammillaria dolichocentra is a cactus with pale rose or reddish crimson flowers. The stem is six to eight inches high and three inches in diameter. The white spines have irregular length.

Mammillaria Dolichocentra

Mammillaria dolichocentra is a cactus with pale rose or reddish crimson flowers. The stem is six to…

The mammillaria haageana cactus has bright carmine rose flowers. The stem is bullet shaped when young and club shaped when old. The outer spines are short and white while the inner spines are longer and black.

Mammillaria Haageana

The mammillaria haageana cactus has bright carmine rose flowers. The stem is bullet shaped when young…

The mammillaria sanguinea cactus has dark red flowers. The stem is short and columnar. This cactus is native to Mexico.

Mammillaria Sanguinea

The mammillaria sanguinea cactus has dark red flowers. The stem is short and columnar. This cactus is…

"Melon-Cactus." -Bergen, 1896

Melon Cactus

"Melon-Cactus." -Bergen, 1896

Melon cactus, or Turk's Cap, is the common name of melocactus communis. The flowers are rosy red.

Melon Cactus

Melon cactus, or Turk's Cap, is the common name of melocactus communis. The flowers are rosy red.

A type of cactus.

Chili palm

A type of cactus.

Pilocereus brunnowii is a type of cactus. The stem is erect and cylindrical. There are about thirteen prickles surronded by long white hairs.

Pilocereus Brunnowii

Pilocereus brunnowii is a type of cactus. The stem is erect and cylindrical. There are about thirteen…

The pilocereus dautwitzii cactus as a bright green, oblong stem. Tufts of small white spines spread out from the stem.

Pilocereus Dautwitzii

The pilocereus dautwitzii cactus as a bright green, oblong stem. Tufts of small white spines spread…

The flowers of pilocereus houlletii are violet with hints of red and yellow. The stem is strong and gray-green. The prickles are straw colored.

Pilocereus Houlletii

The flowers of pilocereus houlletii are violet with hints of red and yellow. The stem is strong and…