Eugenia patrisii Vahl (1798: 35)

Amorim, Gabriela Dos Santos, Barbosa, Maria Regina De Vasconcellos, Jr, Eduardo Bezerra De Almeida & Thomas, William Wayt, 2022, Taxonomic study of Myrtaceae in forest fragments in Amazonian Maranhão, Brazil, Phytotaxa 568 (1), pp. 27-60 : 39

publication ID 10.11646/phytotaxa.568.1.3


persistent identifier

treatment provided by


scientific name

Eugenia patrisii Vahl (1798: 35)


12. Eugenia patrisii Vahl (1798: 35) .

Type:— FRENCH GUIANA, s. l., J.P.B. Rohr, s.n. (holotype: C [10015707]). ( Fig 3 View FIGURE 3 I-M)

Trees 2.5– 8 m. Twigs pubescent, the indumentum reddish-brown. Leaves with petioles 1–7 mm long, pubescent, channeled or shallowly channeled; blades elliptic to broadly so, obovate or ovate, 6.2–14.4 × 3.1–6 cm, glabrous, pubescent on young blades, the indumentum reddish-brow, membranaceous or chartaceous, concolorous; glands conspicuous; base cuneate or abruptly rounded; apex acute or cuneate, rarely cuspidate; midvein adaxially flat to impressed; lateral veins slightly visible, arched, 5 to 9 pairs; intra-marginal vein 3–6 mm or less from the margin, margin flat. Inflorescence axillary, a auxotelic raceme, with cataphylls at base, the axis 0.6–1.3 cm long, pubescent, the indumentum reddish-brown; bracts deltate, 3–3.5 × 1–1.6 mm, glabrous adaxially and pubescent abaxially, caducous after anthesis; pedicels 15–30 mm long, glabrous or pubescent; bracteoles linear, 1.5 × 1.5 mm, pubescent, caducous after anthesis; flower buds globose 2–3 × 5 mm, not constricted above ovary; calyx-lobes free, four, orbicular or oblong, 2 × 1.5 mm, pubescent, not reflexed, persistent in the fruit; ovary not seen. Immature fruits globose, ca. 2 cm diameter, glabrous, surface with glands marked.

Note:— Eugenia patrisii may be recognized by its leaves with arched lateral veins, intra-marginal vein 1–6 mm from the margin; its pubescent auxotelic raceme with cataphylls at the base; long-pedicellate flowers; and its globose fruit, which are glabrous and have marked glands on the surface.

Distribution and habitat:— Known from Bolivia, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela and widely distributed in northeastern and northwestern Brazil (POWO 2020, Flora do Brasil 2020). In Amazonian Maranhão, E. patrisii was found growing in flooded forests.

Phenology:— Flowering in September and fruiting in November and December.

Specimens examined:— BRAZIL. Maranhão: Alzilândia, Rio Pindaré , 11 December 1978 (fr.), J. Jangoux & R.P . Bahia 368 ( MG!) ; Bacabal, Fazenda São Francisco , 4°00’00’’S, 44°55’48” W, 25 September 1980 [fl], D.C. Daly D257 ( NY!) GoogleMaps . Carutapera, Gurupiuna, Ka’apor Indian Reserve , 2°43’12” S, 46°25’48” W, 05 November 1986 (st.), W.L. Balée 2904 ( NY!) GoogleMaps . Monção, Bacia do Rio Turiaçu , 22 September 1985 (fl.), W.L. Balée 1047 ( MG!) ; 3°07’12” S, 46°04’48” W, 31 May 1987 (st.), W.L. Balée 3312 ( NY!) GoogleMaps ; Catutapera, Gurupiuna, Ka’apor Indian Reserve , 3°30’ S, 45°15’ W, 09 May 1986 (st.), W.L. Balée 2293 ( NY!) GoogleMaps ; 2°43’12” S, 46W25’48” W, 05 November 1986 (fr.), W.L. Balée 2904 ( MG!) . São Luís, Alumar , 2°41’30” S, 44°19’44” W, 10 November 1995 (fr.), K. B. Ferreira & E.C. Girnos s.n ( MAR!) GoogleMaps .


Museum of Zoology


William and Lynda Steere Herbarium of the New York Botanical Garden


Grasslands Rhizobium Collection