Eugenia lambertiana De Candolle (1828: 270)

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 : 38

10. Eugenia lambertiana De Candolle (1828: 270) .

Type:—“in ins. Caribaeis, S. Vincentii” [and the Grenadines]. Lambert s.n. (B as F negative 33490) . ( Fig. 3 C-D.)

Trees or shrubs 4 m. Twigs glabrous. Leaves with petioles 5–10 mm long, glabrous, channeled; blades elliptic or lanceolate, rarely ovate, 4.1–12.2 × 1.3–5 cm, puberulent adaxially and glabrous abaxially, the indumentum whitish, membranaceous, discolorous; glands not seen; base attenuate, cuneate or rounded; apex acute or acuminate; midvein adaxially sulcate; lateral veins visible, not arched, 8 to 20 pairs; intra-marginal vein 1–2 mm or less from the margin, margin revolute. Inflorescence axillary, a fascicle, the axis 2–7 mm long, sparsely pubescent, the indumentum brownishred; bracts deltate, 0.5 × 0.4 mm, caducous after anthesis, glabrous; pedicels 2–5.9 mm long, glabrous; bracteoles deltate, ca. 1 mm, glabrous, persistent in the fruit; flower buds globose 2–3 × 3 mm, not constricted above ovary; calyx-lobes free, four, orbicular, 1.5 × 2 mm, glabrous, not reflexed, persistent in the fruit; ovary not seen. Immature fruit globose, 0.8–1 × 0.7 cm, glabrous, surface smooth.

Note:— Eugenia lambertiana may be recognized by its elliptic or lanceolate, rarely ovate leaves, which are discolorous, brown adaxially and green abaxially; and the intra-marginal vein ca. 1–2 mm or less from the margin. This species is morphologically related to E. protenta , but can be distinguished by its leaves, which are puberulent adaxially and glabrous abaxially (vs. glabrous), the revolute margin (vs. flat), and the glabrous fruit (vs. pubescent).

Distribution and habitat:— Known from Bolivia, Colombia, Ecuador, French Guiana, Guyana, Leeward Is., Peru, Suriname, Trinidad-Tobago, Venezuela, Windward Is. and widely distributed in central, northeastern and northwestern Brazil (POWO 2020, Flora do Brasil 2020). In Amazonian Maranhão, E. lambertiana was found growing in open field.

Phenology:— Flowering in November and fruiting in March.

Specimens examined:— BRAZIL. Maranhão: Maracaçumé River Region , 08 September 1932 (fl.), R.L. Fróes 1872 ( NY!) .

Additional specimens examined:— BRAZIL. Amapá: Serra do Navio, Rio Amapari , 0°52’52” N, 52°01’03” W, 23 November 1954 (fr.), R.S. Cowan 38547 ( NY!) . Pará: Oriximiná. Rio Trombetas, margem esquerda do lago Erepecu , ao longo do lago, 1°20’31” S, 56°34’43” W, 16 July 1980 (fr.), C.A. Cid Ferreira 1522 with J. Ramos, C.D. Mota & M. Rosas ( NY!) .

Figures

FIGURE 3. A–B. Eugenia dittocrepis. A. Habit. B. Immature globose fruit. C–D. E. lambertiana. C. Habit. D. Inflorescence in fascicle. E–H. E. patens. E. Habit. F. Inflorescence in a simple raceme. G. Flower bud. H. Fruits. I–M. E. patrisii. I. Habit. J. Inflorescence in raceme auxotelic. K. Flower bud. L. Imature fruit with indumentum. M. Mature glabrous fruit.