Calypogeia decurrens (Steph.) Steph., Bull. Herb. Boissier ( ser . 2) 8 (9): 675 (407). 1908.

Bakalin, Vadim A., Klimova, Ksenia G. & Nguyen, Van Sinh, 2020, A review of Calypogeia (Marchantiophyta) in the eastern Sino-Himalaya and Meta-Himalaya based mostly on types, PhytoKeys 153, pp. 111-154: 111

publication ID

http://dx.doi.org/10.3897/phytokeys.153.52920

persistent identifier

http://treatment.plazi.org/id/BD538571-9387-55F4-90BC-3788FB18952C

treatment provided by

PhytoKeys by Pensoft

scientific name

Calypogeia decurrens (Steph.) Steph., Bull. Herb. Boissier ( ser . 2) 8 (9): 675 (407). 1908.
status

 

Calypogeia decurrens (Steph.) Steph., Bull. Herb. Boissier ( ser. 2) 8 (9): 675 (407). 1908.   Figure 9K View Figure 9

Basionym.

Kantius decurrens   Steph., Hedwigia 34 (2): 52. 1895.

Type. Indonesia, Sumatra, Kehding (isotype: G [G00060745!]).

Remarks.

The species status is seriously doubted by Söderström et al. (2016), probably due to supposed close morphological relations to C. arguta   . However, the taxon is different from C. arguta   in narrow (not U-shaped, as common in C. arguta   ) leaf sinus and smooth cuticle (versus distinctly papillose) and especially in brown pigmentation of herbarium plants ( C. arguta   is pale even in the very old type in STR). To attract some attention to this very poorly known species (and to stimulate the search for similar forms in the Meta-Himalaya), we include this Indonesian taxon in the key.