Magnolia elegans (Blume) H.Keng

Chen, J. & Baldini, R. M., 2020, Flora of Singapore precursors, 19: Nomenclatural notes on Artabotrys (Annonaceae) and Magnolia (Magnoliaceae), Blumea 65 (3), pp. 179-187 : 182

Magnolia elegans (Blume) H.Keng — Fig. 4

Magnolia elegans (Blume) H. Keng (1978) 129, pl. 1. — Aromadendron elegans Blume (1825) 10. — Talauma elegans (Blume) Miq. (1868) 70. — Lectotype (first step designation by Nooteboom 1987,second step designated here): Blume 215 (lecto L0038349; isolecto BO n.v., L0038348), [ Indonesia,] Java. See note 1.

Aromadendron glaucum Korth. (1850) 98. — Talauma glauca (Korth.) Miq. (1868) 70. — Magnolia glauca (Korth.) Pierre (1880) sub t. 2, nom. illeg., non (L.) L. (1759). — Talauma elegans (Blume) Miq. var. glauca (Korth.) P.Parm. (1896) 277. — Aromadendron elegans Blume var. glauca (Korth.) Dandy (1928) 183. — Lectotype (first step designation by Dandy 1928, second step by Nooteboom 1987): Korthals s.n. (lecto L0038347; isolecto BM000574750), [ Indonesia,] Sumatra, Kassan. See note 2.

Manglietia oortii Korth. (1850) 97. — Lectotype (designated by Nooteboom 1987): Korthals s.n. (lecto L0038346 ), [ Indonesia,] Sumatra. See note 3.

Notes — 1. The protologue of Aromadendron elegans does not mention any specimen, but states “ in sylvis circa viam Lebak Provinciae Bantam, necnon in montosis Salak et Gede ” (i.e., in the forest near Lebak Road, Bantam Province, and in the moun- tain regions of Salak and Gede). All the localities mentioned in the protologue are in West Java, Indonesia. Nooteboom (1987) made a first step lectotypification by citing ‘Type: Blume 215 (L; iso BO), Java’. There are, however, two sheets of Blume 215 in L that are not cross-labelled and hence represent duplicates. According to Art. 9.17 of the ICN ( Turland et al. 2018), a designation of a lectotype that is later found to refer to more than one specimen of a single gathering must be accepted, but may be further narrowed to a single one of these specimens by a subsequent lectotypification. Therefore, we here designated L0038349 (Fig. 4a) as the second-step lectotype. Nooteboom (2012) regarded L0038349 as a holotype; however, the mention of multiple localities in the protologue indicates that multiple specimens were seen by Blume. In addition, Nooteboom (2012) cannot be considered to have selected a second-step lectotype as his type statement lacks the phrase ‘designated here’.

2. Korthals (1850) merely cited a locality (Kassan, Sumatra) without mentioning any specimen in the protologue of Aromadendron glaucum . The first effective typification of Aromaden­ M. glauca var. sumatrana (Miq.) Dandy , he did not formally typify the former name as he has not seen its type.According to Nooteboom, Korthals also wrote the name M. oortii on another sheet that was later re-identified as Manglietia macklottii Korth. by Korthals himself. This specimen also bears a label with the locality ‘Singalang’, corresponding to Korthals’ protologue of M. oortii . However, Nooteboom considers this specimen to be the type of Manglietia macklottii , which was also collected from Singalang, Sumatra (see discussion below under Magnolia macklottii ). Nooteboom lectotypified M. oortii using the specimen L0038346 (Fig. 4c) that Dandy had rejected as being mislabelled, although Nooteboom noted “a slight difference between the flowers [of this specimen] and their description by Korthals, which is very obscure anyhow”. Since there is no major morphological conflict between Nooteboom’s lectotype and Korthals’ protologue, Nooteboom’s choice of lectotype has to be followed, according to Art. 9.19 of the ICN ( Turland et al. 2018).