46 Mr. Lindley's Remarks upon the 



To this number I have now to add nine new species, toge-^ 

 ther with some observations upon the three previously recorded. 

 Upon referring to the end of these remarks, it Avill be seen, that 

 after taking into account both the pubhshed and unpubhsh^d 

 species of Chilian Orchidese, that portion of the Flora compre- 

 hends only four genera, three belonging to Arethusese, the other 

 to Neottieae ; and there is strong reason to believe that these, if 

 not the only orchideous genera to be discovered in Chile, do con- 

 stitute almost the entire feature of that part of vegetation which 

 they represent ; for among the extensive collection of drawings 

 made by Mr. Miers, during a long and active residence in the 

 country, I observed nothing to contradict such an opinion. Of 

 these Chloraea, Bipinnula and Asarca are absolutely confined 

 to the province, and to that of Buenos Ayres; while Spiranthes 

 is one of the most widely diffused of all known genera, species 

 of it having been found in the temperate parts of Europe 

 and Siberia, in Northern India and New Holland, in the 

 islands of the Indian Archipelago and off the coast of Southern 

 Africa, in North America and the West Indies, in Brazil, and 

 lastly, in Chile : in fine, there are not more than five of the 

 twenty botanical regions into which the surface of the globe is 

 divided by writers upon botanical geography, in which Spiran- 

 thes is not known to exist; and analogy leads us to believe 

 that in three of these five it will be found by future in- 

 quirers. 



It is highly curious that the botanical affinities of Chlorsea, 

 Bipinnula, and Asarca, the endemical genera of the province, 

 are not so immediately with other South American genera as 

 with those of New Holland. While they totally disagree with 

 Stenorhynchus, Cranichis, Ponthieva, and Prescotia, all exclu- 

 sively American genera, they represent, on American ground, 

 the numerous tribes of Arethusese. peculiar to New Holland, 

 and especially Lyperanthus and Caladenia. Chloraea galeata 

 has very much the appearance of the New Holland Pterostylis 

 rufa in a gigan tic state ; and even Prasophyllum fimbriatum of 

 the same country has a closely analogous structure with that of 

 Bipinnula plumosa. 



I now proceed to state the technical characters and botani- 



