Espostoopsis
Espostoopsis dybowskii is the only species of the monotypic genus Espostoopsis in the cactus family ( Cactaceae ). The botanical name of the genus derives from the Greek noun " ὅψις " ( opsis ) for appearance and refers to the resemblance to the genus Espostoa. The epithet of the species honors the botanist and agricultural scientist Jean Dybowski ( 1856-1928 ).
Description
The shrubby, mostly from the basic branching Espostoopsis dybowskii reaches stature heights of 2 to 4 feet. Their cylindrical, up to 8 inches in diameter reaching strains are completely covered by white hair. The 20 to 28 ribs are low. The areolae are covered with a matte, yellowish wool and plenty of white hair. The 2-3, protruding needle-like central spines are yellow and 2 to 3 inches long. The numerous short and thin spines are hidden in the hair areolae. The cephalium formed laterally and has a length of up to 60 centimeters.
The up to 4 cm long flowers open at night. They are white and short tube- to bell-shaped. The flower cups is bald, the flower-tube covered with very small scales. The almost bare, pale pink fruits with persistent, becoming black flowers rest are, broadly ovate in shape and have a diameter of up to 2.5 centimeters. They contain a white flesh and not tear up. The black, rough - warty seeds are oval to pear-shaped.
Systematics, distribution and hazard
Espostoopsis dybowskii is widespread in the northern Brazilian state of Bahia at altitude 300-750 meters. The first description of the genus was founded in 1968 by Franz Buxbaum. Your only way in 1909 described as Cereus dybowskii of Robert Roland - Gosselin for the first time. By recombinations in different genera are numerous synonyms for the species a synonym of the genus is Gerocephalus F.Ritter.
Espostoopsis was dybowskii in the Red List of Threatened Species IUCN in 2002 as ' Endangered ( EN )', ie endangered classified. After the revision of the list in 2013 is the type as " Vulnerable (VU) ," ie, performed as endangered.