ORCHIDACE.E 



sagittate in outline, terminating abruptly in a lobe-like bluntly- 

 triangular tip, margin of the apical half of the lip distinctly cil- 

 iolate, basal portion shallowly concave, margin of the triangular 

 depression strongly thickened ; basal auricles about 1 mm. long, 

 obtusely triangular. Column minute with cylindrical, blunt lob- 

 ules — one on each side. Anther as in M. Leonardii. 



Allied to M. spicata Sw. from which it differs in the ciUolate 

 margin of the labellum and in the longer pedicel of the flower. 

 There is not any thickened ridge running through the middle of 

 the concave base, as in 31. Leonardii, from which species M. do- 

 mingensis is in part distinguished by the sagittate ciliolate label- 

 lum with large basal auricles. Malaxis carpinterae Ames comb, 

 nov. {MicrostyliscarpinteraeSchltr. inBeihefteBot. Centralbl. 36, 

 Abt. 2 (1918) 381) differs from M. doviingensis in its larger nearly 

 opposite leaves and in the distinctly tridentate apex of the label- 

 lum. i)!fa/aa72.y rotundata (Ridl.) Ktze.is also a closely related spe- 

 cies, but is separable from M. domingensis by the form of the lip. 



Dominican Republic, vicinity of Laguna, Samana Peninsula, W. L. 

 Abbott 371, December 21, 1920. 100-500 meters altitude. (Type in U. S. 

 Nat. Herb. No. 1078077.) 



Malaxis Leonardii Ames sp. nov. Aff. M. Adolpho. Radices 

 fibratae. Caulis prope basim tumidus, bifoliatus, foliis confertis. 

 Folia inaequalia, elliptico-ovata. Pedunculus valde elongatus. 

 Inflorescentia subumbellata. Flores numerosi, congesti, longe 

 pedicellati. Sepala lanceolata, obtusa, sepalo dorsali angustato. 

 Petala linearia. Labellum integrum, breviter acuminatum, infra 

 medium concaviusculum. Columna minuta. 



In habit similar to M. domingensis, from which it differs in 

 having a smooth labellum. Roots elongated, fibrous, up to 8 cm. 

 or more long. Stems tumid at base with two or three sheathing 

 obtuse greenish bracts, 4-6 cm. long up to the base of the lamina 



[157] 



