126 VASCULAR PLANTS. 



3. Habenaria, Willd. 



Anther 1, persistent, entirely connate with 

 the column; pollinia 2, divergent at the lower 

 end. Perigoninm ringent, galeate; labellnm 

 elongate, spreading, calcarate. Column short. 



71. caulescent. 



4. Corallorhiza, Haller. 



Anther 1, terminal, caducous, not adnate to 

 the column; pollinia 4, globose. Perigonium 

 ringent. Labellum adnate to the column, ser- 

 rate at base, 3-lobed; lateral lobes very small. 

 Column semi -terete. 



2£. aphyllous and without chlorophyll; flow- 

 ers in spikes. 



ORDER XXXIII. EPIGYN.E. 



Stamens free, 3, or its multiple. Ovary in- 

 ferior. 



Family xciv. Iridaceae. 



Stamens 3, opposite to the external segments 

 of the perigonium; anthers extrorse. 



1. Sisyrinchium, L. 



Divisions of the perigonium equal. Stamens 

 monadelphous. Style short; stigmas 3, filiform, 

 involute, alternate with the stamens. Fruit a 

 capsule, obovate. 



