Miconia subcompressa

Judd, Walter S., Majure, Lucas C., Ionta, Gretchen M. & Neubig, Kurt M., 2015, Taxonomic studies in the Miconieae (Melastomataceae). XIII. Systematics of Miconia subcompressa, a Hispaniolan endemic comprised of three eco-geographic subspecies, Phytotaxa 197 (2), pp. 61-83 : 74-75

Key to the subspecies of Miconia subcompressa

(1100–) 1450–2300 m, in the Massif de la Hotte .................................................................................................. 1b. subsp. plumieri

1. Stems of current growth flush with hairs ± impressed, globular-stellate; leaves with only 2 pairs of secondary veins, 2 or 3 pairs of secondary veins, or consistently 3 pairs of secondary veins, abaxially with nearly white to pale or moderately ferrugineous, globular-stellate hairs, adaxially with areoles ± bullate and either not forming an evident longitudinal “ridge” between midvein and the major secondary veins, or such “ridge” only slightly developed; plants growing in the Massif de la Selle /Sierra de Bahoruco, or if in the Massif de la Hotte then usually in moist broadleaved forests over limestone (rak bwa) from 700–1550 m .........................................2

2. Leaf apex obtuse, obtuse-mucronate, or broadly and shortly acuminate, forming an angle of 44–76 o to midvein ; length/width quotient of leaf blade 1.5–2.15; leaf base rounded to slightly cordate; plants of the Sierra de Bahoruco,in the “Monteada Nueva” region,i.e., the peaks east of the Hoyo de Pelempito (cloud forest, 1300–1425 m).................................................................................................................... 1c. subsp. beverlyana

2. Leaf apex acute to slightly and/or shortly acuminate, forming an angle of 18–41 o to midvein; length/width quotient of leaf blade (2.05–) 2.15–3.3 (-4.9);leaf base acute to rounded; plants of the Massif de la Hotte (usually rak bwa, 700–1550 (–1700) m), Massif de la Selle / Sierra de Bahoruco, in areas west of the Hoyo de Pelempito (cloud forest,moist pine forest, 1100–1800 m) ................................................ 1a. subsp. subcompressa

1a. Miconia subcompressa Urban subsp. subcompressa ( Fig. 2 ; see also Judd, 2007, fig. 63b–e, g–h)

Figures

FIGURE 2. Miconia subcompressa subsp. subcompressa. A. Branch with flowers and young fruits; note lack of longitudinal “ridge” on adaxial leafsurface(Judd 3933, from Massifde la Hotte,1200 m).B.Habit (Majure 4276;Massif dela Hotte,989 m).C. Stem;note appressed hairs (Majure 4276). D. Leaf, adaxial surface (Majure 4276). E. Leaf, abaxial surface; note acute apex, pale ferrugineous indumentum (Majure 4276). F. Flowers, side view; note well developed calyx lobes (Majure 4276). G.Flowers, top view; note actinomorphic androecium of white stamens with obovate anthers opening by longitudinal slits (Majure 4276). H. Berries, nearly mature; note rather large calyx lobes (Timyan 35; Massif de la Hotte, 1156 m). I. Branch with young inflorescence; note moderately ferrugineous abaxial leaf indumentum (Timyan 11; Massif de la Selle, 1443 m). Photo A taken by W.S. Judd, B–G taken by G.M. Ionta, and H–I taken by J. Timyan.