Tarenna madagascariensis (Ten.) I.M. Turner

Turner, Ian M., 2022, An overlooked name provides the basionym for a new combination in Malagasy Tarenna (Rubiaceae), Candollea 77 (2), pp. 237-240 : 238

publication ID

https://doi.org/ 10.15553/c2022v772a8

DOI

https://doi.org/10.5281/zenodo.7849433

persistent identifier

https://treatment.plazi.org/id/B16A5A45-1856-FFE1-FF9A-FA21FBA9FDAF

treatment provided by

Felipe

scientific name

Tarenna madagascariensis (Ten.) I.M. Turner
status

 

Tarenna madagascariensis (Ten.) I.M. Turner , comb. nov.

Pavetta madagascariensis Ten., Cat. Orto Bot. Napoli : 90. 1845.

Neotypus (designated here): [ MADAGASCAR]: cultivated in the Naples Botanical Garden , 14. VII.1850, Gussone s.n. ( NAP [ NAP0000515 View Materials ] image!) .

= Pavetta gracilis A. Rich. ex DC., Prodr. 4: 492. 1830. Ixora gracilis (A. Rich. ex DC.) Kuntze, Revis. Gen. Pl. View in CoL 1: 287. 1891. Enterospermum gracile (A. Rich. ex DC.) Bremek. in Repert. Spec. Nov. Regni Veg. 37: 193. 1934. Tarenna richardii Verdc. in Kew Bull. 37: 561. 1983, nom nov. [non T. gracilis (Stapf) Keay, 1957 ], syn. nov. Neotypus (designated here): MADAGASCAR: “des côtes orient. de Madag.”, s.d., Richard 906 (P [P03919043] image!).

= Ixora grevei Drake View in CoL in Bull. Mens. Soc. Linn. Paris 2: 1308. 1897. Tarenna grevei (Drake) Homolle View in CoL in Bull. Soc. Bot. France 85: 606. 1939, syn. nov. Lectotypus (designated here): MADAGASCAR: sine loco, s.d., Grevé 261 (P [ P00173282 ] image!; isolecto-: P [ P00115297 , P00173281 , P00173283 , P03919323 ] images!, TAN [ TAN000755 About TAN ] image!).

Notes. – There is no specimen of Pavetta madagascariensis in Tenore’s herbarium in Naples (R. Vallariello, pers. comm.), but, there is a specimen ( Fig. 1 View Fig ) in the herbarium of Giovanni Gussone (1787–1811), a Neapolitan botanist contemporary of Tenore. The specimen accords well with Tenore’s description, with one notable exception. In the protologue, Tenore stated ‘calycibus 5-dentatis’ but the Gussone specimen has tetramerous flowers. As the specimen is a good match to Tarenna grevei View in CoL and it is labelled with Tenore’s name in Gussone’s hand, I consider the discrepancy in the number of calyx lobes to be a lapse on Tenore’s part and accept Rippa’s interpretation of the name. The Gussone specimen [NAP0000515] is designated here as the neotype of Pavetta madagascariensis , and a new combination for this name is proposed in Tarenna View in CoL .

Pavetta gracilis was described separately by Augustin Pyramus de Candolle (1778– 1841) and by Achille Richard (1794–1852) in 1830 when they were both studying the family Rubiaceae . Candolle’s fourth volume of the Prodromus was published two months earlier than Richard’s Mémoire (see KIRKBRIDE & WIERSEMA, 2022). Among the 72 Rubiaceae names ascribed to Richard in the Prodromus , several were not associated to any specimen because Candolle copied Richard’s descriptions and no original material was available to him (KIRKBRIDE & WIERSEMA, 2022). A neotype is therefore designated here on the best material seen by Richard now deposited at P [P03919042].

The best preserved material of Grevé 261 is designated here as the lectotype of Ixora grevei .

NAP

Institute of Zoology, Academia Sinica (formerly National Academy of Peiping)

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Gentianales

Family

Rubiaceae

Genus

Tarenna

Loc

Tarenna madagascariensis (Ten.) I.M. Turner

Turner, Ian M. 2022
2022
Loc

Ixora grevei

Drake 1939: 606
Drake 1897: 1308
1897
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