Botanical novelties from Sierra de Maigualida, southern Venezuela. II

• Main Authors: José R. Grande, Jacquelyn Kallunki, María M. Arbo, Paul E. Berry, Otto Huber, Ricarda Riina
• Format: Article
• Language: English
• Published: Consejo Superior de Investigaciones Científicas 2012-06-01
• Series: Anales del Jardín Botánico de Madrid
• Subjects: campanulaceae; guayana highlands; guiana shield; pantepui; phyllanthaceae; rutaceae; taxonomy; turneraceae
• Online Access: http://rjb.revistas.csic.es/index.php/rjb/article/view/371
• ISSN: 0211-1322; 1988-3196

Four new species, Siphocampylus acanthidiotrichus J.R. Grande (Campanulaceae), Phyllanthus huberi Riina & P.E. Berry (Phyllanthaceae), Sohnreyia maigualidensis J.R. Grande & Kallunki (Rutaceae), and Turnera maigualidensis J.R. Grande & Arbo (Turneraceae) are described and illustrated from the summit areas of Sierra de Maigualida in the Gua - yana Highlands of southern Venezuela. To date, one genus, 32 spe cies, one subspecies, and one variety of angiosperms are known only from the Maigualida meadows and shrublands, between 1800 m and the highest elevation areas at 2400 m. Here we describe the first iteroparous species for the genus Sohnreyia K. Krause, a Turnera L. species with apically villose, apiculate petals, and a Siphocampylus Pohl species with aculeiform hairs and pinnatisect leaves. The new species, Siphocampylus acanthidiotrichus, together with S. Tillettii Steyerm., represents a morphologically distinct subgroup within the genus.