Recircumscription of Bredia and resurrection of Tashiroea (Sonerileae, Melastomataceae) with description of a new species T. villosa
Author
Zhou, Qiu-Jie
Author
Dai, Jin-Hong
Author
Lin, Che-Wei
Author
Denda, Tetsuo
Author
Zhou, Ren-Chao
Author
Liu, Ying
text
PhytoKeys
2019
127
121
150
http://dx.doi.org/10.3897/phytokeys.127.36608
journal article
http://dx.doi.org/10.3897/phytokeys.127.36608
1314-2003-127-121
984BE958639F563981AAD9B3868D1734
3352453
Bredia tuberculata (Guillaumin) Diels, Bot. Jahrb. Syst. 65(2-3): 111. 1932.
Fordiophyton tuberculatum
Guillaumin, Notul. Syst. (Paris) 2(11): 326. 1913 (Basionym). Type: China. Yunnan: Tchen fong chan, Delavay 5053 (lectotype, designated here: E! [E00285959]; isolectotypes: P! [P02274731], P! [P02274729] individual on the right side of the sheet).
Bredia omeiensis
H.L. Li, J. Arnold Arbor. 25(1): 24. 1944.Type: China. Sichuan: Emei Shan, 1100 m, 21 Aug 1937, Y.S. Liu 1080 (holotype: A! [A00071990]; isotype: LBG! [LBG00089612]).
Notes.
Three gatherings were cited in the protologue of
Fordiophyton tuberculatum
, viz. Delavay 5053, Ducloux 2192 and Wilson 4906.
Diels (1932)
designated Delavay 5053 as the type without citing a specific herbarium. We located four duplicates of Delavay 5053 (E00285959, P02274729, P02274730, P02274731). Close examination of the specimens revealed that this gathering is a mixture of
B. tuberculata
and
B. yunnanensis
. Individuals on E00285959, P02274731 and the one on the right side of P02274729
conform
to the protologue of
B. tuberculata
in the adaxially white punctate leaves and unequal and dimorphic stamens. The remaining four individuals (three on P02274730 and one on the left side of P02274729) conform to the holotype of
B. yunnanensis
in the absence of white spots on their leaves and the subequal and isomorphic stamens. According to Art. 9.11, 9.12, 9.14, and 9.17 (
Turland et al. 2018
), the lectotypification by Diels should be accepted and further narrowed to a single specimen that corresponds most closely with the original description. We therefore designate E00285959 as the lectotype as it conforms to the description and contains many well-preserved leaves and flowers.