Rediscovery of Timmiella acaulon (Timmiellaceae) in the Chaco Province, northeastern Argentina

JIMENEZ, SOLEDAD; ZANDER, RICHARD; IRIART DAVID

BOLETíN DE LA SOCIEDAD ARGENTINA DE BOTáNICA

SOCIEDAD ARGENTINA DE BOTÁNICA

Lugar: Córdoba; Año: 2023 vol. 58 p. 1 - 7

0373-580X

Background and aim: Herbarium specimens were reviewed as part of broader project that deals with the diversity of bryophytes from Chaco province (Argentina). One of the samples matched the description of Timmiella acaulon, a species previously poorly recorded and illustrated. The aim of this work is to record Timmiella acaulon as new to Chaco, and to describe and illustrate in detail by SEM and LM this unusual and poorly known taxon.M&M: Herbarium samples were analyzed with standard techniques for bryophytes. Examination with SEM was made using samples mounted directly on double-sided tape and coated in gold-palladium.Results: Timmiella acaulon is newly registered for Chaco province. A complete and detailed description, and illustrations in SEM and LM, are here presented.