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Ketton, United Kingdom

The known distribution of the two species of Espostoa Britton & Rose formerly in the genus Thrixanthocereus Backeb. is described and expanded with recent new observations. A hybrid between Espostoa senilis and E. aff. Ruficeps is recorded. Source


Charles G.,Briars Bank
Bradleya | Year: 2013

Matucana rebutiiflora is described as a new cactus species from Peru. It is the third species in the genus to bear symmetrical flowers which are probably pollinated by bees rather than humming birds. The habitat is an area favoured by local people for agriculture so threatening this remarkable new taxon. Source


Charles G.,Briars Bank
Bradleya | Year: 2013

A new species of Borzicactus, B. hoxeyi, is described. First observed in 2010, this small inconspicuous species, presently only known with certainty from the Morro de Sama on the arid southern Peruvian coast is distinct from all other members of the genus because of its unique flower morphology. It is also geographically disjunct from other Borzicactus species and it extends the range of the genus southwards by approximately 100km. Source


The application of the names Cactus icosagonus Kunth and Cactus humboldtii Kunth is discussed with reference to their historical treatment compared with the various forms of these taxa seen in habitat today. Plants were found in Ecuador which closely match the description of Akersia roseiflora Burning, suggesting that its original type locality in southern Peru was incorrectly stated. The division of Borzicactus icosagonus into three subspecies is proposed and an epitype for one of them is designated. Source

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