Hydrangea preslii Briq.

Woody climbers or shrubs, pubescence of stellate hairs sparse to moderate on inflorescence and adjoining stem; leaves oval, 9-20 cm. long, 4-9 cm. wide, their length 2 to 3 times their width, margin entire and somewhat undulate, petiole stout, 15-20 mm. long; inflorescence more or less compact, longest branches 4-9 cm. long, sterile flowers absent, fertile flowers maroon; hypanthium 1.5 mm. long; calyx-lobes 0.5 mm. long; petals 1.5-2 mm. long, 1 mm. wide; stamens 8, 1.5-2 mm. long, filaments 1-1.5 mm. long, approximately as long as styles (in Central America); styles usually 3, occasionally 2 or 4, 0.8-1.5 mm. long (during anthesis),