Monographs Details: Graffenrieda cinnoides Gleason
Authority: Maguire, Bassett, et al. 1953. The Botany of the Guayana Highland. Mem. New York Bot. Gard. 8 (2): 87-160.
Description:Latin Diagnosis - Frutex pubescens; folia longe petiolata, ovato-oblonga, 5-pli-nervia, subacuminata, basi obtusa, supra glabra subtus venis pubescentia, pagina grisea atomis nitentibus; flores 4-5-meri, breviter pedicellati in panicula parva; sepala triangulari-acuminata.
Species Description - Sparsely branched shrub. Stem thinly but closely brown-tomentulose with stout, crooked, barbellate hairs; similar pubescence of the petioles (15-28 mm. long) and the primary veins of the leaves. Leaves thin, ovate-lanceolate, subacuminate to a blunt point, entire, obtuse at base, 5-pli-nerved, glabrous above, sparsely pubescent on the primaries beneath, the actual surface grayish with minute shining particles. Flowers 5-merous, in 3-flowered clusters, on pedicels about 1 mm. long, forming a small loose panicle about 5 cm. long. Fruiting hypanthium 2.6 mm. long, closely dotted with minute shining particles. Sepals separate to the torus, thin, triangular-acuminate, 1.4-1.8 mm. long and about as wide. Petals lacking. Filaments about 4.3 mm. long; anthers subulate, arcuate, about 3.5 mm. long; connective prolonged into a minute erect spur. Capsule 2-3-celled.
TYPE: summit of Cerro Sipapo, Bassett Maguire & Louis Politi 28180; New York Botanical Garden. The plant has a strong habital resemblance to G. cinna Macbr., a plant of low altitudes in Peru, but differs in the nearly glabrous leaves and sessile flowers.