FACING 

 PLATE PAGE 



XII. View in the forest on Barro Colorado Island 148 



Base of plant of Renealmia aromatica, showing the 

 inflorescences 148 



XIII. Ophiomeris panamensis, at left, and Leiphaimos albus . . 150 

 Apodanthes Flacourtiae, growing on trunk of 



Xylosma Hemsleyana 150 



XIV. Trunk of Zanthoxylum sp., showing the curious flat- 



tened corky prickles 154 



XV. Base of trunk of Bombacopsis Fendleri, the largest 

 tree of Barro Colorado Island, showing the buttresses. 



The palm is Acanthorrhiza Warscewiczii 156 



Base of a trunk of Ouratea Wrightii 156 



XVI. Chara Kenoyeri 160 



XVII. Campylopus hondurensis 349 



XVIII. Bryum Standleyi 352 



Bryum bursiforme 352 



XIX. Meesea Ulei 360 



Rhynchostegium patulum 360 



VI 



