ORCHIDACE.E 



longo, trans basim 2 mm. lato, lobulo intermedio triangular! ; dis- 

 cus lobi terminalis carina transversa ornatus. Calcar 2 mm. Ion- 

 gum, subglobulum, intus glabrum. Gynostemium 1.75 mm. Ion- 

 gum. Ovarium cum pedicello usque ad 4 mm. longum, longitu- 

 dinaliter alatum. 



Erythrodes trinitatis is closely related to the Central Ameri- 

 can E. vaginata and to E. querceticola. From both it differs in 

 the form of the terminal lobe of the label] um and in the more 

 compact habit. The stems are leafy almost to the raceme. 



Trinidad, B. W. I., St. Anne's, W. E. Broadway s. ?i., 1888. A lovely 

 variegated terrestrial orchid. (Type in Herb. N. Y. Bot. Gard.) 



Erythrodes Tuerckheimii {Schltr.) Ames comb. nov. Physu- 

 rus Tuerckheimii Schltr. in Fedde Repert. 2 (1906) 132. Physu- 

 rus polygonatus Ames inDonn.-Sm. Enum.Pl. Guatem. 7(1905) 

 50, nomen; Orch. 2 (1908) 259; Orch. 3 (1908) 35, t. 35. Ery- 

 throdes polygonata Ames Orch. 5 (1915) 28. 



The type material of E. Tuerckheiviii and E. polygonata is 

 represented by the same number of Tuerckheim's Guatemalan 

 collection. 



Erythrodes vaginata {Hook.) Ames Orch. 5 (1915) 29. 

 Physurus vaginatus Hook. Ic. PI. (1842) t. 449. 



Physurus humidkola Schltr. in Fedde Repert. 15 (1918) 198 

 is a very near relative of E. vaginata and in general habit re- 

 sembles one of the larger specimens of Skinner's Guatemalan 

 collection on which Hooker based his description of Physurus 

 vaginatus. 



Physurus trilohulatus Schltr. in Fedde Repert. 15 (1918) 199 

 is surely a near ally oiE. vaginata. In habit it resembles closely 

 one ofthesmaller specimens of Skinner's Guatemalan collection 

 of Physurus vaginatus, and in the structure of the labellum 

 closely resembles that species. 



[77] 



