Seventeen exsiccata discovered in Herbarium Mortolensis [HMGBH] collected by Joseph Nelson Rose on two different trips in the Caribbean region (1913) and in Peru (1914), were compared with those having the same collection numbers deposited at NY, US and K, making a total of 46 specimens together with the original photos and drawings of the material collected during the Rose field trips and with selected literature. Isotypes of Cylindropuntia caribaea (Britton & Rose) F.M. Knuth, Hylocereus antiguensis Britton & Rose, Opuntia antillana Britton & Rose, and Opuntia hattoniana Britton & Rose are identified.
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1 May 2019
J.N. Rose exsiccata collection (Cactaceae) in Herbarium Mortolensis (HMGBH): Revision and typification
Alessandro Guiggi,
Mauro Mariotti
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