270 



APPENDIX. 

 Mexican Orchids having a wide range in other parts of America. 



Bletia nodosa 



Cleistes rosea 



Cyrtopodium punctatum 

 Dichaea echinocarpa . . . 

 trichocarpa 



Dinema paleacea 

 Epidendrum ciliare .... 



coehleatum 



difforme 



floribundum 



fragrans 



fuscatum 



nocturnum 



ramosum 



Ionopsis utrieularioides . . 



Isoehilus linearis 



Lepanthes ophioglossoides 



Liparis elliptica 



Lockhartia elegans 



Maxillaria camaridium . . 

 Microstylis umbellulata . . 

 Oncidium ampliatum .... 



cebolleta 



pusillum 



Pleurothallis ruscifolia . . 

 Polystachya luteola .... 

 Ponthieva glandulosa. . . . 

 Rodriguezia secunda .... 

 Stelis ophioglossoides .... 

 Stenorrnynchus orchioides 



Totals 30 - 



24 26 



6| 



*: 



29 



24 



m 



*3 



25 



18 



A few particulars respecting the orchids, from Guatemala to Panama, and their 

 altitudinal distribution in Mexico: — Our Enumeration records 238 species from the 

 former country; 71 from Nicaragua, 198 from Costa Rica, and 104 from Panama. 

 All these figures, except perhaps those for Guatemala, must be far below the numbers 

 actually existing in these countries, especially as regards the inconspicuous species. 

 South Mexico, more especially the States of Vera Cruz, Mexico, Puebla, and Oaxaca, 

 is only surpassed in orchid vegetation, if at all, by some parts of Colombia, and the 

 most comprehensive view of the altitudinal succession of the numerous genera and 

 species, from the sea-coast to their highest limits, is sketched by A. Richard and 

 H. Galeottif; but, as we reproduce the substance of that in another place, it is 



* Three out of four of these are tropical species, only found in South Elorida. 



f ' Comptes rendus des Seances de l'Academie des Sciences,' xviii. 1844, pp. 497-513. 



