50 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



No. 28121, growing at higher elevation near the summit of the mountain, has 

 the same general features as those found in the type material, but the leaves are 

 smaller, the branchlet-internodes and the inflorescences shorter, and the cupules 

 more consistently dentate. These variations may possibly reflect the more ex- 

 posed habitat. 



Although the species at first glance appears to bear a subterminal inflores- 

 cence, close examination shows young leaves already developing from the terminal 

 bud. At the maturity of the fruit, the bud may conceivably be fully developed, 

 relegating the earlier subterminal inflorescence to an axillary position. 



The last three new species, similar in aspect, appear to belong to the same 

 complex. Aniba cinnamomi flora and A. percoriacea bear a closer relationship 

 through their mutual character of pubescent, stipitate ovary. The former may 

 have an affinity with A. cylindriflora Kostermans from Amazonian Brazil. 



Aniba affinis (Meissner) Mez, Jahrb. Bot. Gart. Berlin 5: 63. 1889. 



Aydendron affine Meissner in DC. Prodr. 15 1 : 92. 1864. 



Type. Secus Rio Negro, inter Barcellos et San Gabriel, Brasiliae septentrion- 

 alis, Dec 1854, Spruce 3769 (isotype, fl. NY). 



Distribution. Small tree occurring in the sandstone areas of Brazil and Ven- 

 ezuela, along the Rio Negro and its tributaries and the Rio Orinoco, and re- 

 ported farther south in Brazil in the upper Rio Madeira region. VENEZUELA. 

 Amazonas: Rio Orinoco between Tamatama and Cano Manaviche, Level 2 (fl. 

 NY). BRAZIL. Amazonas: Rio Negro, Serra de Cabary, Froes 21478 (fl. NY), 

 Tapera, Padauiry, 22714 (fl. NY). 



The species is one of a number of the Lauraceae that are vaguely reminiscent 

 of several species but not particularly outstanding in any one characteristic. It is 

 a combination of characteristics, however, that, despite its superficial lack of 

 distinction, in the dried state at least, makes it more or less readily recognized. 

 Level's number is less sparsely pubescent than the type, the ovary being rather 

 papillose than pubescent. Froes' collection bears leaves that are generally smaller 

 than those of the type and more often broadly elliptic. 



The species was originally described by Meissner from Spruce 3769 and 

 Riedel s.n., from around Barra (Manaos). Kostermans has separated the syn- 

 types, placing the latter in A. trinitatis (Meissner) Mez on the grounds that the 

 ovary of the latter specimen is glabrous. It is not pubescent as that of the Spruce 

 number, but papillose as noted in Level's collection. In other respects, the two 

 agree very well. 



Aniba panurensis (Meissner) Mez, Jahrb. Bot. Gart. Berlin 5: 58. 1889. 



Aydendron panurense Meissner in DC. Prodr. 15 1 : 89. 1864. 



Type. Prope Panure ad Rio Uaupes, Amazonas, Brazil, Spruce 2603 (isotype, 

 fl. NY). 



Distribution. Aromatic trees, growing at varying altitudes along the Rio 

 Negro and its tributaries in Brazil and Colombia (possibly, in the Cordillera 

 Macarena), and along tributaries of the Rio Orinoco in Bolivar, Venezuela. 

 VENEZUELA. Bolivar: occasional along Rio Parguaza near Raudal Maraca 

 (about 110 river km from mouth), Wurdack & Monachino 41043 (fr. NY). 

 COLOMBIA. Comisaria del Vaupes: riberas del Rio Inirida (longit. 69°45' W.), 

 sitio "Raudal Alto" o Mariapiri, margen derecha (en la orilla del rio), A. 



