Riccardia digitiloba (Spruce) Pagán

Reeb, Catherine, Bernard, Elisabeth Lavocat & Gradstein, S. Robbert, 2022, An integrative taxonomic revision of Aneuraceae H. Klinggr. (Marchantiophyta) from Guadeloupe and Martinique, French West Indies, Cryptogamie, Bryologie 20 (8), pp. 135-152 : 146

publication ID	https://doi.org/ 10.5252/cryptogamie-bryologie2022v43a8
persistent identifier	https://treatment.plazi.org/id/22696B6B-2519-B962-F8BD-5136FC6870E9
treatment provided by	Felipe
scientific name	Riccardia digitiloba (Spruce) Pagán
status

Treatment

Riccardia digitiloba (Spruce) Pagán View in CoL

Aneura digitiloba Spruce , Bulletin de la Societé botanique de France (Congr. Bot.) 36: cci (1889). — Riccardia digitiloba (Spruce) Pagán View in CoL , The Bryologist 42: 6 (1939). — Type: Brazil. Rio de Janeiro, Glaziou 7228 (iso-, G[G00283000]!, G[G00283001]!, G[G00283002]!, G[G00283003]!).

REMARKS

Riccardia digitiloba is a dioicous, widespread neotropical species that was recorded from Guadeloupe byPagán (1942) based on material from Bains-Jaunes (Lefèbre & Marie s.n.) and Petit Bourg (Questel 1555, PC). We have not seen these specimens and are unable to confirm the occurrence of R. digitiloba in the French Antilles. The species is recognized by the small-celled epidermis (epidermis cells 3-4× smaller than inner cells) and the delicate, pinnate to dichotomous thalli with linear, wingless or rudimentarily winged branches producing gemmae at the tips. The gemmiparous branches are sometimes tapering to narrow tips ( Gradstein & Reeb 2018b).

Kingdom	Plantae
Phylum	Marchantiophyta
Class	Jungermanniopsida
Order	Metzgeriales
Family	Aneuraceae
Genus	Riccardia