55 



Pores (transverse section) numerous, s.-nall (about .03 

 mm. in diameter], nearly round, closed in the heartv/ocd with 

 an abundance of reddish yellow tyloses and arranged singly, 

 in small grou^js in short indistinct radial rows. Vessel 

 walls ( loiig-itudinal section} with numerous small, round bor- 

 dered ijits having transversely slit-like pit openings. The 

 ends of vessel sediments nearly horizontal and almost com- 

 pletely absorbed. */ood fibers about .7 mm. long with ra- 

 ther thin walls and relatively large cell cavities. The 

 pits very small and indistinct. .Yood parenchyma abundantly 

 developed around pores and pith rays. Gristals abundant 

 bordering pith rays. ^<ays very numerous and arranged in 

 tiers clearly visible as horizontal lines on smooth tangen- 

 tial surfaces. The rays are very s.aall, rarely more than 

 one cell v/ide and 10 cells high, often only 5 or 6 cells 

 high. 



D istribution, com ion names and uses 



This tree, remarkable for its peculiar shaped fruits 

 and the beauty of its red wood, enhanced by broad to narrow 

 dark veins, is known only from southern Darien, v/here it 

 grows in groups on the coastal hills ana en th3 drier slopes 

 of the interior. It is called by the natives Amarillo d e 

 GAayaquil or Guayaquil's Yello'-v, a name for which no ex^la- 

 nation could be found, as the wood is not yellow and not 

 known to have ever been imported from Guayaquil. It is Yecy 

 hard, and very adequate fcr interior v;ood-v/crk and furniture, 



The Ghepan ::;!,uira 

 riatymiscittm dubium Pittier, Contr. U.S. Hat. Herb. 20: 



125. 1918. 



Description of the tree 



A middle-sized tree, forking low and with rounded de- 

 Pressed or elongated crown; bark grayish, finely lenticelloae 



