FIGURE 1. Calamus cinereus. A in New species and subspecies of Calamus (Arecaceae) from Vietnam

FIGURE 1. Calamus cinereus. A. Sheath and abaxial surface of pinnae with dull gray indumentum (Henderson 3389). B. Short, membranous, non-spinulose ocrea, splitting and falling early (Henderson 3625). C. Leaf with 4 distalmost pinnae in a close group, the distalmost pair joined for much of their length and oriented in line with the rachis, the adjacent pair oriented at approximately 45º angle to the rachis (Henderson 3625). D. Infructescence (Henderson 3626).