ametro, cum testa crustacea, nitida, plusminusve 2 mm. 
crassa, area umbilicali magna. 
Arbor a regionis typicae brasiliensis incolis weuqué (in 
lingua nheenagtti), puch-pee-d (in lingua tukanorum tri- 
bus); a regionis colombianae incolis 06-le-da (in lingua 
kuripakanorum tribus), /a-he-pa (in lingua mirahorum 
tribus) appellatur. 
CoLLECTIONS EXAMINED: 
Brazit: Estado do Amazonas, Upper Rio Negro, Igarapé Uaba, 
opposite mouth of Rio Xié. ‘‘Immense tree, 110 feet tall, with wide- 
spreading crown. Large buttress roots up to 6 feet. Tree columnar, 
24 to 3 feet in diameter. Bark dark brown, shaggy externally, red 
internally, soft, }—? inch thick. Latex sparse, white. Wood of medium 
hardness, compact, white. Flowers in extremely dense clusters, fall- 
ing easily. Sepals greenish; petals white; anthers brown, apparently 
odourless. Common name: ucuqut.’’ January 5, 1948, Richard Evans 
Schultes & Francisco Lopez 9553 (Tyre in Herb. Gray; Dupticatr ryprs 
in Herb. Inst. Agron. Norte (Belém do Parad); U.S. Nat. Herb. ; 
Kew; Econ. Herb. Oakes Ames).—Rio Issana basin, between Rio 
Aiari and Rio Caiari (Uaupés), near Serra Tunui. “‘Arvore 25 m. 
40 em. Frutos estimados como alimento indigena. Ucuqut.’? October 
13, 1945, Ricardo de Lemos Frées 21388.—Rio Negro, near Uaupés 
(Sao Gabriel), Serra de Uanari ‘‘Ucuqui. Arvore muito grande. Latex 
branco, pegajoso, pagina inferior da folha revestida por leve indumento 
escamoso ferrugineo, fruto amarelado.’’ October 26, 1947, Joao Murca 
Pires 773.—Same locality. ** Ucuqué. Arvore muito grande. Latex 
branco, pegajoso, pagina inferior da folha revestida por leve indumento 
escamoso ferrugineo; fruto amarelo.’’? October 30, 1947, Joao Mur¢a 
Pires 799.—Same locality. *‘ Ucuqut. Arvore muito grande no alto da 
serra. Floras quasi brancas (botoes).’? November 17, 1947, Joao Mur¢a 
Pires 1165.—Rio Negro, near confluence with Rio Uaupés. ‘‘ Ucuqut. 
Arvore muito grande. Madeira dura. Latex branco, pegajoso. Pagina 
inferior da folha revestida por leve indumento escamoso, ferrugineo, 
amarelado.’’ November 5, 1947, Joao Murga Pires 833,— Rio Uaupés, 
Serra Uapici. ‘‘Ueuqué. Arvore grande.’’ November 17, 1947, Joao 
Murca Pires 1150.—Rio Negro, near Uaupés (Sao Gabriel). ** Ucuqui. 
Arvore platinhas novas, colhidas sob a arvore.’’ October 30, 1947, Joao 
Murga Pires 792.—Rio Uaupés, Ipanoré **Puh-pid. Arvore grande.’’ 
November 15, 1947, Joao Murca Pires 1057.—Rio Uaupés, Taracua. 
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