A new Croton (Euphorbiaceae) from the western Guayana Shield and its anomalous sectional placement

Croton scutatus is newly described and illustrated. It is currently known from three widely separated areas in the western portion of the Guayana Shield. It shows an interesting transition in trichome types on different parts of the plant, and it possesses a suite of characters that make its section...

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Bibliographic Details
Published in:Systematic botany 1998-04, Vol.23 (2), p.171-175
Main Authors: Berry, P.E. (Missouri Botanical Garden, St. Louis, MO.), Gaskin, J.F
Format: Article
Language:English
Subjects:
ANATOMIA DE LA PLANTA
ANATOMIE VEGETALE
Calyx
CROTON
CROTON GUAIQUINIMAE
CROTON SCUTATUS
DISTRIBUCION GEOGRAFICA
DISTRIBUTION GEOGRAPHIQUE
ESPECE NOUVELLE
ESPECIES NUEVAS
Female flowers
FLEUR
FLORES
Flower stigma
FLOWERS
GEOGRAPHICAL DISTRIBUTION
Inflorescences
Male flowers
NEW SPECIES
Ovaries
Petals
PLANT ANATOMY
Plant reproduction
Plants
TAXONOMIA
TAXONOMIE
TAXONOMY
TRICHOME
TRICHOMES
TRICOMAS
ULTRAESTRUCTURA
ULTRASTRUCTURE
VENEZUELA
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Description
Summary:Croton scutatus is newly described and illustrated. It is currently known from three widely separated areas in the western portion of the Guayana Shield. It shows an interesting transition in trichome types on different parts of the plant, and it possesses a suite of characters that make its sectional placement in the genus problematical. Its closest relative may be Croton guaiquinimae from higher elevations on the Guyana Shield
ISSN:0363-6445
1548-2324
DOI:10.2307/2419586