The Collaborative International Dictionary of English v.0.48:

Piassava \Pi*as"sa*va\, n. [Pg. piasaba.]
   A fibrous product of two Brazilian palm trees (Attalea
   funifera and Leopoldinia Piassaba), -- used in making
   brooms, and for other purposes. Called also pia[,c]aba and
   piasaba.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Coquilla nut \Co*quil"la nut\ [Pg. coquilho, Sp. coquillo, dim.
   of coco a cocoanut.] (Bot.)
   The fruit of a Brazilian tree (Attalea funifera of
   Martius.).
   [1913 Webster]

   Note: Its shell is hazel-brown in color, very hard and close
         in texture, and much used by turners in forming
         ornamental articles, such as knobs for umbrella
         handles.
         [1913 Webster]

WordNet (r) 3.0 (2006):

Attalea funifera
    n 1: Brazilian palm yielding fibers used in making ropes, mats,
         and brushes [syn: piassava palm, pissaba palm, Bahia
         piassava, bahia coquilla, Attalea funifera]