CHAPTER XXV 



THE ERA OF THE NON-ENDEMIC GENERA OF FLOWERING 



PLANTS {continued) 



The Age of the Malayan Plants as represented in 

 the Low-level Flora of Hawaii and in the Bulk 

 of the Floras of the Fijian and Tahitian Regions 



The Age of Wide Dispersal over the Tropical Pacific. 



The widely dispersed genera which possess only peculiar species in Hawaii. 

 — Pittosporum. — Reynoldsia. — Gardenia. — Psychotria. — Cyrtandra — 

 Freycinetia. — Sapindus. — Phyllanthus. — Pritchardia. — Summary. 



We pass now from the consideration of the mountain-flora of 

 Hawaii and its scanty representation in the Fijian and Tahitian 

 regions to a discussion of the low-level Hawaiian flora, belonging 

 to stations under 4,000 or 5,000 feet, and of the corresponding 

 floras of the other two regions. It has been previously pointed out 

 that in mass the plants of Fiji and Tahiti correspond to the low- 

 level flora of Hawaii. 



There are numerous ways of comparing this era of the non- 

 endemic genera of these three regions of the Pacific. The necessi- 

 ties of space, however, compel me to treat the subject only in an 

 illustrative fashion, and in adopting the plan which seems easiest 

 and simplest I have also been obliged to keep my limitations 

 mainly in view. 



The Widely-dispersed Genera which possess only 

 Peculiar Species in Hawaii. 



Amongst the oldest denizens of the Pacific islands in this era of 

 the non-endemic genera may be taken those genera of flowering 

 plants which are found in all three regions, Hawaii, Fiji, and 



X 2 



