120 Holm — Additions to the Flora of Washington. 



901. Habanaria tridentata Hook. 

 Beyond Silver Hill. G. W. Oliver. 



909. Spiranthes gracilis Biyel. 



Smithsonian Park. Piney Branch. Eastern Branch woods. 

 The author. 



914. Tipularia discolor Nntt. 



North Brookland. Robert Ridgway. Fort Myer. The au- 

 thor. 



915. Microstylis ophioglossoides Xutt. 



Sandy Spring road; a single specimen. H. W. Henshaw. 

 Near Blagden's Mill. P. Gauges. 



917. Liparis Lceselii Rich. 



North end of Massachusetts Avenue bridge. G. AV. Oliver. 



919. Corallorhiza multiflDra Xutt. 



Below Burnt Mills ; four specimens in tlower in the second 

 Aveek of August. H. W. Henshaw. 



925. Aletris farinosa L. 



Fort Whipple ; above Blagden's Mill. H. W. Henshaw. Sil- 

 ver Hill. G. W. Oliver and M. B. Waite. 



IRIDACE.E. 

 927. Iris verna L. 



Bladensburg. M. B. Waite. 



LILIACE.E. 



946. Smilacina stsUata Desf. 



About forty specimens in full bloom, besides several younger 

 individuals, were observed on a shaded rock about three njiles 

 above Aqueduct Bridge, on the Virginia shore, in the second 

 week of INIay. The author. 



947. Maianthemum Canadense Desf. 



Swamp near the Reform School. G. W. Oliver. 



