Conostegia ortizae Kriebel

Kriebel, Ricardo, 2016, A Monograph of Conostegia (Melastomataceae, Miconieae), PhytoKeys 67, pp. 1-326: 136

publication ID

http://dx.doi.org/10.3897/phytokeys.67.6703

persistent identifier

http://treatment.plazi.org/id/4D60217D-E2E6-C358-A498-B382308B0E3B

treatment provided by

PhytoKeys by Pensoft

scientific name

Conostegia ortizae Kriebel
status

sp. nov.

Conostegia ortizae Kriebel   sp. nov. Fig. 127 View Figure 127

Type.

Ecuador. Napo: Estación Biológica Jatun Sacha, Sendero Río   Napo, 14 November 2005, D. Penneys 1857 (holotype NY!; isotype: FLAS, MO)   .

Description.

Shrubs or small trees to 3-6 m tall with flattened and grooved stems that are covered with an orangish mixture of long and shorter-branching stellate trichomes, the long branching ones graceful and sessile, sometimes also becoming dendritic; the nodal line present yet slight. Leaves at a node equal to subequal in size. Petiole 0-1.5 cm, grooved above, usually entirely covered by the decurrent leaf base. Leaf blades 17-37 × 8-15 cm, 3-5 plinerved, with the innermost pair of veins diverging above the base in fashion, broadly elliptic to obovate, decurrent at the base, the apex long-caudate up to 3.5 cm long, margins entire to undulate-denticulate, glabrous adaxially, abaxially with indument like that of the stem. Inflorescence a terminal panicle 4-13 cm long with accessory branches; bracteoles 2-3 mm long, linear, tending to persist. Pedicels 1-2 mm. The hypanthium 3-4 × 4.5-5 mm, pubescent with long-and shorter-branching stellate trichomes. Flowers 6-8 merous, calyptrate; floral buds 7-11.5 mm, not constricted below the calyptra. Petals 10.5-12 × 8.25-8.75 mm, white, obtriangular, spreading, glabrous on both surfaces. Stamens (26-)34-52, slightly zygomorphic, the filament 4-4.5 mm, white, anthers 3.5-4 × 0.5-0.75 mm, linear subulate, pale yellow, the pore ca. 0.15 mm, slightly ventrally inclined. Ovary 12-13 locular, inferior; style ca. 11-12 mm long mm, straight but gently bending from the base, glabrous, distance from the anther to the stigma ca. 3.5-4 mm, stigma subcapitate, 1.4-1.7 mm wide. Mature berry ca. 8-9 × 8-9 mm when dry.

Distribution

(Fig. 128 View Figure 128 ). Northeastern foothills of the Ecuatorian Andes with one more southern population in Ecuador, at 250-1250 m in elevation.

Conostegia ortizae   can be easily recognized by its large sessile leaves with an evidently decurrent leaf base and strongly plinerved venation. Of the species for which the anatomy of the style has been studied, this is the only one in section Australis   to have a stele within the style.

Etymology.

This species is dedicated to the Ecuadorian biologist Patricia Ortiz who tragically passed away in her second home of Monteverde, Puntarenas, Costa Rica. Pati was one of the best and most passionate naturalists I have had the fortune to meet.

Specimens examined.

ECUADOR. Napo: Cantón Archidona, North bank Río Suno, 15 km NW of Loreto, 8 km W of El Progreso, Neill et al. 9153 ( MO, NY); Estación Biológica Jatun Sacha, Rio Napo 8 km al E de Misahualli , Palacios 2510 ( MO, NY); Archidona, Parque Nacional Galeras, a 1.5 km de la comunidad Santa Rosa de Arapino , faldas cordillera de Galeras, Bloque 19 línea sísmica 28, Compania Triton, Vargas and Grefa 943 ( MO, NY)   . Santiago-Zamora: Taisha, Rio Guaguayme , Cazalet and Pennington 7545 ( NY)   .