Willdenowia 38
Willdenowia – Annals of the Botanic Garden and
Botanical Museum Berlin-Dahlem
ISSN 0511-9618
© 2008 BGBM Berlin-Dahlem.
Eggli, U. & Leuenberger, B. E.: Type specimens of Cactaceae
names in the Berlin Herbarium (B) [De herbario berolinensi notulae 48].
Willdenowia 38: 213-280.
doi:10.3372/wi.38.38116
Abstract
A short history of the Cactaceae holdings of the Berlin herbarium and their
fate is provided. While a considerable number of historical spirit specimens
have escaped the destruction of the herbarium during World War II, the
pre-1943 collection of pressed specimens was lost almost entirely.
More than half of the present Cactaceae holdings of B were
made on the base of cultivated material. The importance of these “Garden Herbarium”
specimens is stressed, especially for succulent plants, where much of the type material,
even of recently described taxa, is of insufficient quality or even fragmentary.
A complete survey of all extant Cactaceae specimens at B (including the
material recently transferred from the former KOELN herbarium) has resulted in a
detailed and commented list of type specimens and specimens derived from cultivated
descendants of type collections. Nomenclatural and typification problems encountered
during this compilation are discussed. A list of photographs preserved at B depicting
type material located in other herbaria, is also given. Lectotypes are selected for
the names Cereus lamprospermus, C. rhodoleucanthus, C. stenogonus, C. xanthocarpus,
Echinocactus umadeave, Echinopsis rhodotricha, Pilocereus setosus, Rebutia steinbachii
and Turbinicarpus pseudomacrochele var. lausseri.
Additional key words
cacti, succulents, typification, lectotype, botanical nomenclature, collection history.
