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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



Fig. 4. Geographic distribution of three species of Spathiphyllum widespread in northern 

 South America. Fig. 5. Geographic distribution of nine species of sect. Amomophyllum and 

 three species, of sect. Spathiphyllum of northern South America and Panama. 







they are typical. Most nearly identical to the type is Seibert 507, which has 

 served to guide me in the amplification of this species. 



The Peruvian species 8. lechlerianum is probably the closest ally of this 

 species. From it 8. quindiuense is separated by its proportionally narrower 

 spathe. 



8. quindiuense is considered primitive among the species of section Amomo- 

 phyllum, and indeed may have arisen from stock similar to that which gave rise 

 to 8. friedrichsthalii of sect. Spathiphyllum. Both species tend toward a multi- 

 ovulate condition of the ovary, and both grow in the Panama-Colombia area 

 where the greatest concentration of species of Spathiphyllum occurs. 



