Euphorbia foliolosa Boissier (1862: 24)

Silva, Otávio Luis Marques Da, Cordeiro, Inês & Caruzo, Maria Beatriz Rossi, 2014, Synopsis of Euphorbia (Euphorbiaceae) in the state of São Paulo, Brazil, Phytotaxa 181 (4), pp. 193-215 : 200

7. Euphorbia foliolosa Boissier (1862: 24) ( Fig. 2F–I ). Lectotype (designated here):— BRASIL. Minas Gerais: ad Trinidade, J.B.E. Pohl 1670 (holotype B†, photo F!, lectotype W0031076!, isolectotype W0031077!).

Distribution and habitat:— Euphorbia foliolosa is endemic to Brazil (São Paulo and Minas Gerais). In the State of São Paulo the species occurs in cerrado vegetation.

Representative Specimen:— BRAZIL. São Paulo: Pedregulho , 30 October 2013, O.L.M. Silva et al. 97 (SP) .

Taxonomic notes:— Euphorbia foliolosa is very similar to E. hyssopifolia and E. bahiensis but may be easily identified among them by its longer (> 1.5 mm in E. foliolosa vs. up to 1.5 mm in E. hyssopifolia and E. bahiensis ) and entire (vs. bifid in E. hyssopifolia and E. bahiensis ) styles, and venation pattern (cladodromous in E. foliolosa vs. actinodromous in E. hyssopifolia and E. bahiensis ). One notable characteristic of E. foliolosa , besides its very long styles, is the blackish apex of the teeth of the leaf margin.

Figures

FIGURE 2. A–B: Euphorbia comosa. A. habit, B. synflorescence. C–E: Euphorbia elodes. C. synflorescence, D. branch with cyathia, E. cyathium. F–I: Euphorbia foliolosa. F. habit, G. detail of leaf margin, H. branch with cyathia, I. detail of a cyathium. Photos: A–B: I. Cordeiro, C–I: O.L.M. Silva.