45 



long clawlets, e.rnarginate; stainens 10, free, exserted; 

 ovary substipulate , xjubescent, 2 to 3-oyulate. Leg-ume gla- 

 brous, thin, Goriacseous, ovate lanceolate, atipitate, 1- 

 seeded. 



Desorijjtion of the wood 



Sapwood thiok and yellowish white; heartwood reddish 

 brown with otrijjes of deeper shades. .;coa vnrj hard, heavy 

 strong, tough, cross and fine-grained, taking a very fine 

 polish and difficult to Sjjlit and to wox-ic. Annual tings 

 of growth visible only under the hand lens. 



Pores (transverse section) numerous, small (about ,08 

 mm. in diameter), round or nearly so, open and arranged 

 singly or more often in pairs or smsll groups of 3 to 4. 

 Vessel wall (longitudinal section) with numerous minute bor- 

 dered pits with transversely elongated pit openings. '2he 

 ends of vessel segiaents are oblique and completely absorbed, 

 ./ood fibers about 1 ram. long with thick walls and small cell 

 cavities. Pits simple and vei-y small, V/ood parenchyma 

 abundantly developed, surrounding the pores, often forming 

 short tangential lines connecting neighboring pores, x^ith 

 rays very numerous, small, storied and scarcely visible 

 with the aid of the hand lens. 2ays are from one tc two 

 calls wide and from 4 to 6 lines as high. 



Distribution, common names and uses 



The Panaman Sweetia is known from Darien and Central 

 Panama, aM also from the states of Llichoacan and Guerrero 

 in llexico, appearing probably here and there in the interme- 

 diate region along the Pacific coast. In Panama it is 

 Lt called lAalvecino (bad neighbor) and in Llexico huesito 



(little bone) both names probably referring to the excessive 

 hardness of the wood, which seems to be of little use among 

 the natives. 



