CONTENTS 



PAOB 



Dendrobium acuminatum Rolfe (with plate 17) 1 



Bulbophyllum lasioglossum Rolfe (with plate 18) 3 



Bulbophtllum Copelandii Ames (with plate 19) 5 



Hormidium tripterum Cognx. (with plate 20) 7 



Illustrations of the Genus Dendrochilum (with plates 21-24) . 11 



Spiranthes longilabris LindL (with plate 25) 15 



Studies in the Orchid Flora of the Philippines 17 



New Species and Names of American Orchidace^e „ . . . . 258 



Summary of New Species and Combinations proposed in the 



present Fascicle 274 



Errata et Corrigenda 275 



Index to Fascicles 1 and 2 277 



