Psammisia sclerantha A. C. Smith, Mem. New York Bot. Gard. 8(1): 72.  1952.  Type.  Ecuador.  Morona-Santiago:  Cordillera de Cutucú, between Río Ontza and Río Chupiasa, 1310-1435 m, 17 Nov 1944 (fl), Camp E-1195 (holotype, US;  isotypes, F, K, NY;  photo of NY type NY neg. 10027).  Images:  Habit.  Inflorescence.

        Epiphytic shrub with lianoid habit, glabrous throughout except for staminal filaments;  stem and twigs subterete, complanate, bluntly angled, striate.  Leaves sometimes falcate or asymmetric, elliptic-lanceolate to oblanceolate, (11-)15-26 x 4-10.5 cm, base long-cuneate and shortly attentuate onto petiole, apex shortly and abruptly acuminate, sometimes shortly caudate-acuminate, margin entire;  pinnately nerved with 4-6 lateral nerves per side, midrib slightly impressed above and very much raised and conspicuous beneath, lateral nerves and reticulate veinlets plane to slightly raised above and raised beneath;  petiole terete, conspicuously striate, rugose, 13-23 mm long.  Inflorescence axillary, subracemose, 2-7-flowered;  rachis subterete, to 12 mm long;  floral bract ovate, acuminate, ca. 1 mm long;  pedicel subterete, striate, 15-17 mm long, red to coral-red;  bracteoles basal, similar to floral bract.  Flowers with calyx ca. 6 mm long, red to coral-red;  hypanthium cylindric to campanulate, 3-4 mm long, the base rounded or truncate and apophysate, constricted at junction with limb;  limb erect-spreading, ca. 2-3 mm long;  lobes very broadly ovate, apiculate, less than 1 mm long;  sinuses acute to flattened;  corolla cylindric-urceolate, 7-9 mm long and 6-8 mm diam., conspicuously thick-fleshy distally, dark brownish- to purplish-violet, the lobes spreading, triangular, acute, 1-2 mm long, green;  stamen 10, ca. 4.2-6.5 mm long;  filaments distinct, 1.5-3 mm long, weakly puberulent distally ventrally, the connectives coriaceous, all spurred near top;  anthers 3.8-6 mm long;  thecae 2.8-4.5 mm long, the base incurved;  tubules 1.2-1.5 mm long.  Mature berry not seen, but immature to 11 mm diam.

        Distribution.  Endemic to Ecuador;  premontane moist, wet and rainforest to montane rainforest, at 800-2000 m altitude.  Rare.