Euphorbia thymifolia Linnaeus (1753: 454)

Hassemer, Gustavo, Silva, Otávio Luis Marques Da, Funez, Luís Adriano, Ernst, Madeleine, Cordeiro, Inês & Rønsted, Nina, 2017, Updates on the genus Euphorbia (Euphorbiaceae) in Santa Catarina, Brazil, Phytotaxa 298 (3), pp. 222-238 : 234

Euphorbia thymifolia Linnaeus (1753: 454)

Lectotype (designated by Wheeler [1941: 252–254]):—COUNTRY UNKNOWN. Without locality, Anonymous s.n. (LINN-630.10!).

Photographs: — Fig. 7 D–E in Silva et al. (2014).

Distribution and habitat: — Euphorbia thymifolia is a worldwide tropical and subtropical weed ( Silva et al. 2014) with a mostly ruderal environmental preference. In SC this species has been collected in the following municipalities: Blumenau, Florianópolis, Navegantes, Penha and Rodeio ( Fig. 3 ).

Conservation status: —Least Concern (LC).

Notes: —Despite being a very common species in SC, E. thymifolia was until recently confused mainly with E. prostrata Aiton (1789: 139) , but also with E. serpens Kunth (in Humboldt et al. 1817: 52), in taxonomic and floristic works. Thus we present here the first bibliographic reference on the occurrence of E. thymifolia in SC.

Material examined: — BRAZIL. Santa Catarina: Blumenau, Rua Pastor Oswaldo Hesse , calçada, 11 November 2011, L. A. Funez 24 (FURB-36917) ; Florianópolis, Campus da UFSC, Ilha de Santa Catarina, 22 January 2013, G. Hassemer 612 (FLOR-47598) ; Navegantes, Rua Adolfo Antônio Cabral , calçada, 18 February 2013, L. A. Funez 1669 (FURB-40404) ; Penha , em calçada, 14 October 2015, L. A. Funez 4472 (FURB-48211) ; Rodeio, Centro , em fendas do calçamento, 28 October 2012, L. A. Funez 1133 (FURB-39397) .

Figures

FIGURE 3. Distribution map of Euphorbia cyathophora (yellow stars), E. graminea (green diamond), E. ophthalmica (blue triangle) and E. thymifolia (red dots) in Santa Catarina.

FIGURE 7.Image of the lectotype of Tithymalus stenophyllus (F.Sello s.n., G-00405797), whichis the basionym of Euphorbia stenophylla. Published with permission of the Conservatoire et Jardin botaniques de la Ville de Genève.