1. Syngonium armigerum (Standley & L. 0. Williams) Croat, comb. nov.

Philodendron armigerum Standley & L. 0. Williams, Ceiba 3:107. 1952. TYPE: Costa Rica, Cartago on hills near Moravia (SE of Turrialba) on road past Tuis, 1300 m, L. 0. Williams 16170 (EAP, holotype; US, isotype).

NOTE: The original description gave Limon Province as the location. However, Moravia is considerably to the west of the Limon border.

Scandent hemiepiphyte; stems 5-6 mm diam., drying brown with longitudinal wrinkles; internodes 2-4 cm long; leaves persisting at all nodes at least in the upper 30 cm of the stem; petioles 5-7 cm long, (that of the leaf subtending the inflorescence to 10 cm long), sheathed nearly to the apex, the sheath 5-7 mm wide when flattened, emarginate at the apex; blades simple, membranous, oblong to oblong?elliptic, 8-15 cm long, 3?6 cm wide, acute to narrowly rounded at the apex, apiculate, weakly lobed at the base, the lobes broadly triangular or rounded, obtuse, the lower surface with obscure black punctations, 5-7 veined at base; primary lateral veins 5?6 pairs all arising in the basal half of the blade, ascending at a sharp angle to the margin near the apex, each forming a separate collective vein; tertiary veins distinct.
usually one per axil; peduncles to 5.3 cm long, 5 mm diam. (dried); fruiting spathe coriaceous, ca. 7 cm long. Infructescences not seen. Fig. 1

DISTRIBUTION: The species is known only from the type locality, which is an area of premontane wet forest or premontane rain forest. The type collection made in April was in mature fruit. COSTA Rica: Limon: Near Moravia, Williams 16170 (EAP, US).