NEW OR NOTEWORTHY PLANTS EROM COLOMBIA AND 

 CENTRAL AMERICA. 



By Henry Pittier. 



MORACEAE. 

 THE AMERICAN GENERA OF ARTOCARPOIDEAE-OLMEDIAE. 



Bibliographical researches connected with the identification of 

 several species of this family led me to attempt the revision of the 

 generic status of the Artocarpoideae-Olmediae, the result of which is 

 the reinstatement of the discarded Naucleopsis and Noyera and the 

 dropping of Maquira. A tentative generic key is also given, our 

 present knowledge of Pseudolmedia, Olmedia, Perebea, Naucleopsis, 

 and Noyera reviewed, and a few new species described. 



KEY TO THE AMERICAN GENERA. 



Male flowers without perianth; stamens more or less scat- 

 tered on the surface of the receptacle. 

 Female receptacle uniflorous; interfloral bractlets of 



male flowers spatulate Pseudolmedia (p. 432). 



Female receptacles multiflorous; interfloral bracts more 



or less lamelliform and broad at base Castilla. 



Male flowers with perianth and 4 stamens. 

 Female receptacles uniflorous. 



Ovary superior; anthers introrse Olmedia (p. 433). 



Ovary inferior; anthers extrorse Olmediophaena. 



Female receptacles multiflorous. 



Style thick, short, and briefly bilobate Perebea (p. 436). 



Style slender, elongate, and divided into 2 long, 

 slender stigmas. 

 Perianth of female flowers none; ovary in- 

 ferior, deeply immersed in the recep- 

 tacle Naucleopsis (p. 439). 



Perianth of female flowers 4-phyllous; ovary 

 inferior but not at all immersed in the 



receptacle Helicostylis. 



Perianth of female flowers monophyllous, 

 thick, smooth at tip; ovary inferior, 

 half immersed in the receptacle Noyera (p. 441). 



" a See Contr. Nat. Herb. 13: 247. 1910. 



431 



