204 ORCH.IDACEM 



Owing to inadequate material there has been an unfortunate 

 misconception of this species, continued to the present time. That 

 the Epidendrum Myosurus of Forster was Dendrobium 3Iyosu- 

 rus of Swartz and Willdenow is proved by synonymy. Lindley 

 bases his Oberonia Myosurus in part on the Forster plant, and 

 has been followed in this by subsequent authors. In Bonpl. 5: 

 54 (1857) Reichenbach describes an Eria Myosurus, on which 

 Lindley (Journ. Linn. Soc. 3: 61) bases his Phreatia Myosu- 

 rus. Reichenbach in Fl. Vit. raises the Epidendrum Myosurus 

 of Forster to Eria Myosurus, changing the Eria Myosurus of 

 Bonplandia to E. stocky urus. The latter is identified by Smith 

 (Orch. Java 502) with Dendrolirium densiflorum of Blume, and 

 Phreatia densifiora Lindl., while Forster's plant has not hereto- 

 fore been placed in Phreatia. 



The material on which my determination is based agrees in habit 

 with Epidendrum Myosurus Forster, in the herbarium of the 

 British Museum. In habit it is similar to the Samoan or Navi- 

 gator's Islands specimen collected by the Wilkes expedition, which 

 Reichenbach f. identified as Eria (Phreatia) Myosurus Reichb. 

 f., but which has longer, more slender, acute floral bracts and 

 appears not to be the same in floral conformation. 



Epiphyte, fls. white, alt. 3400 ft., Mt. Mariveles, Lamao River, 

 Prov. Bataan, Luzon, September 21, 1905, H. JSf. Whitford (no. 

 1361) ; July, 1904, J. B. Leiberg (no. 6061) ; alt. 1000 m., August, 

 1901, E. D. Merrill (no. 3854). 



Society and Navigator's Islands. 



P. PARVULA ( Thw.) Bentham ex Hooker f . Fl. Br. Ind. 5 : 

 811 (1890). — Octarrhena parvula Thwaites Enum. PI. Ceylon 

 305 (1864); Hooker f. ex Trimen Handb. Fl. Ceylon, pt. 4, 208. 

 — P. nana Hooker f . Fl. Br. Ind. 5 : 811 (1890) and Ic. PI. t. 



2084. 



" OCTARRHENA. Sepala sequalia, libera. Petala multo mi- 

 nora. Ldbellum petalis subconforme, parum cymbiforme. Co- 

 lumna brevissima, subheniisphaerica. Stigma transverse oblongum. 



