36 



net take a polish. Annual rings of grcwth not visible luider 

 the compound nicrosoope. 



Pores (transverse section) not very numerous, rather 

 small (about ,125 mia. in diameter), round or soraetimso irre- 

 gular in outline, open both in the eapwood and heartv/ood 

 and arran=:ed singly or in groups of 8 to 3. Vessel v/all 

 (longitudinal sectic-n) //ith numerous, very small sia^^ie and 

 bordered pits. Perforations simple. ,7ood fibers about 

 1.07 mm. long, with very thiii v/alls very large cell cavi- 

 ties, and inconSi'icuous simple pits. ,.'ood parenchyma fi- 

 bers strongly developed around the vessels and adjoining 

 pith rays. I'here are inconspicuous in transverse sections 

 even under the coiapound microscope. .i:ays very numerous 

 and narrow, scarcely visible under Jjand lens. '2hey are 

 from 1 to 4 cells .vide and from 3 to 4 times as high. 



Distribution, common names and uses 



This species seems to be restricted to Central-America. 

 In Panama, it is knov/n in seme parts under the name of rna - 

 jaguillo , while it is the burio or burillo of Josta ..ica 

 and the calagUe , caiagua or calagua l of Salvador. The wood 

 is of little or no use, but the fibrous and strong barJc is 

 one of the principal i3aa jaguas or rOi^e-making materials, of 

 the natives. 



3ombacacea e 

 Fendler's Palse 3ombax 



Bombacopsis L'endleri (Seem.) pittier, Contr. U.S. iiat . 



Kerb. 18:163. 1916. 



Description of the tree 

 A deciduous tree, very variable in size (height from 6 



