Protologue Description: Larnax darcyana N.W. Sawyer sp. nov. TYPE: Colombia. Huila: forest around Mehrenherg, road from Popayán. 2350 m, 6 July 1984. W.G. D’Arcy, Gentry, Monsalve & Silverstone 15626 (Holotype MO; isotype, CONN). Figure 2.

A L. subtriflora ramulis, non flexuosis, foliis glabratis parvioribus pilis haud ramosis multo brevioribus, corolla breviore, filamentis brevioribus, antheris apiculatis, calyce fructifero glabro costis adpressis differt.

Shrub to 2 m tall. Stems with branchlets seldom or weakly flexuous, glabrous; young stems sparsely to moderately puberulent. Leaves membranous, occasionally paired, elliptic, the apex acuminate, the base oblique, cuneate-attenuate, 3-9 X 1.4-5.2 cm, sparsely puberulent beneath, along veins and margin with multicellular, simple hairs 0.2-0.5 mm long; leaves glabrate. Petiole 0.4-1.5 cm long, sparsely to moderately puberulent, glabrate. Inflorescence axillary: flowers 1 to 4 per node in fascicles from a much reduced peduncle to 2.2 mm long either free or partially adnate to the stem. Flowers pendent on sparsely to moderately pubescent pedicels 3-7 mm long. Flowering calyx green, sparsely hirsute, ca. 2 mm long, ca. 3 mm diam., with lobes absent or with very shallow triangular or subulate lobes < 0.6 mm long. Corolla campanulate, pale greenish yellow, membranous, 7.8-10 mm long, ca. 2.5 mm wide at the base, sparsely hirsute and with sessile glands externally, the interior glabrous or with a few non-glandular hairs, the tube 2-3 mm long, the lobes triangular-acute, 5.5-7.2 mm long. Stamens exserted from the corolla tube, included in the corolla limb. Filaments glabrous, unequal in length, the free portion 3.1 mm long, adnate to the basal half of the corolla tube and there broadened and thickened forming a stamen petalum, the bases separated by the corolla vasculature, the anate portion 1-1.5 mm long. Anthers dorsifixed, connivent, ovate-elliptic, appiculate occurring in 3 size arrays, 1.8-2.5 X 1.2-1.5 mm the bases of thecae sagittate; calcium oxalate crystals occurring as druses in pollen sacs. Pollen surface type unknown. Ovarv glabrous, conical. 1-1.1 X 0.8-1 mm, ringed basally by a nectary. Style glabrous 4.5-5.5 mm long; stigma clavate. Fruiting pedicels sparsely to moderately puberrulent, 7-14 mm long. Fruiting calyx accrescent, the basal half tightly investing the fruit, open at the apex, lustrous green and purple with dark green or purple veins, somewhat pyriform-urceolate, 11-16.5 X 9.5-11 mm, glabrous within and without; lobes subulate, <0.8 mm long, of unequal lengths. Fruit an orange berry, globose. 8-11 mm diam.; seeds 40-65; 2.9-3.8 mm diam.

Paratypes. COLOMBIA. Huila: forest around Mehrenberg, road from Popayán, 2300 m, July 1984 (bd, fl), D’Arcy et al. 15595, 15627 (MO); finca Mehrenberg E of Volcan Puracé, near Cauca border 02°16'N, 76°12'W, 2300 m, Apr. 1986(bd, fl, fr), Gentry 53988 (NY, MO). Risardalda: Mpio. Pereira, Parque Regional Ucumarí, Cordillera Central, 4°45'N, 75°35'W, 1600 m, Aug. 1995 (bd, fr), Murcia 390 (MO).