Monographs Details: Eugenia biflora (L.) DC.
Authority: Maguire, Bassett. 1969. The botany of the Guayana Highland-part VIII. Mem. New York Bot. Gard. 18: 1-290.
Family:Myrtaceae
Scientific Name:Eugenia biflora (L.) DC.
Description:Distribution and Ecology - C O L O M B I A . Vaupes: Rio Kuduyari, Cerro Yapoboda, elev 450 m, 5 Oct1951 (fl), Schultes & Cabrera 14236 (MICH). VENEZUELA. Apure: PuertoPaez, 5 Apr 1946 (fl), /. Velez 2301 (MICH). Bolivar: Rio Caroni, vicinityof San Felix, 31 May 1960 (fr), Steyermark 86234 (MICH); middle Orinoco,between Rio Pargueni and Rio Horeda, elev 80-90 m, 14 Dec 1955 (fl), Wurdack& Monachino 39876 ( M I C H ) ; along Rio Uriman below Salto Acarima, elev393 m, 9 Jan 1955 (fl, fr), Steyermark & Wurdack 31 (MICH); above Saltode Para, Medio Caura, elev 300 m, 6 Mar 1939 (bud), Williams 11412 {¥);Para, elev 170 m, 12 Mar 1939 (fl), Williatns 11505 {¥, type of E. caurensis); Sierrade Ichun, along Rio Ichun, trib. of Rio Paragua, elev 500 m, 28 Dec 1961 (bud),Steyermark 90362 ( M I C H ) , (fl, i mm fr), Steyermark 90313 ( M I C H ) ; Rio Paragua,Raudel Surapire, elev 510-525 m, 12 Jan 1962 (bud, imm fr), Steyermark 90780(MICH; an unusual form with narrowly elliptic leaves most of which are not cuspidate).BRITISH GUIANA. Mazaruni River, Takutu Cr. to Puruni R., 13 Dec1944 (fl, fr), Fanshawe {Forest Dept. 4909) ( M I C H ) ; Kwufung mouth of MazaruniRiver, Sep 1925 (fl), Aelson (?) 430 (NY); Maniparu Falls, 14 Feb 1949 (bud,imm fr), Atkinson 53 (MICH). S U R I N A M E . Wilhelmina Gebergte, Zuid Rivier, 2 kmabove confluence with Lucie Rivier, elev 220 m, 1 Jul 1963 (fl), Maguire et al 53900(MICH), 23 Aug 1963 (fl), Irwin et al 55207 (MICH). F R E N C H GUIANA. K m 5 daEstrada Sinnamary-Iracoubo, Black 17368 (MICH); without locality, Aublet (BM,

Discussion:

Myrtus biflora L., Syst. Nat. ed. 10. 1056. 1759.

Eugenia mini Aubl., PI. Guiane Fr. 498. pi. 197. 1775.

Eugenia inundata 7 acutifolia Berg, Mart. Fl. Bras. 14(1): 520. 1858.

Eugenia meyeriana Berg, Mart. Fl. Bras. 14(1): 588, ex descr. 1859.

Eugenia myriostigma Sagot, Anr\. Sci. Nat. Wl. 20: 194. 1885.

Eugenia caurensis Steyerm., Fieldiana Bot. 28: 1010. 1957

Probably the most widespread, and certainly the most variable, of any native species of the family. The leaves vary from rather broadly ovate to narrowly lanceolate, narrowly ehiptic, or even linear (when they may be about the same shape as the needles of Abiesl). The racemes may be luxuriantly flowered, or much reduced. For synonymy and discussion of variation see the Flora of Peru (Field Mus. Pub. Bot. 13(4): 684. 1958). Almost invariably the species may be recognized by the mucronate, impressed-punctate leaves, and the silky-pubescent inflorescence with narrow, acute, bracts and bracteoles.

Most of the specimens from the Guayana region are from relatively narrowleaved plants like the type of Eugenia caurensis Steyerm. Similar plants are frequent along the upper Amazon. At the other extreme are plants with ovate, thickly coriaceous leaves and stout racemes.

Distribution:Colombia South America| Suriname South America| Venezuela South America| Guyana South America| Suriname South America| French Guiana South America|