ORCHIDACEM 125 



Lip oblong, often broadest at the distal end, as long as the sepals and petals 

 or longer, rarely shorter, smooth beneath. 7. S. prcecox. 



Flowers forming a dense raceme, apparently in several ranks. 



Lip constricted at the middle or near the apex. (In no. 8, 5 mm. in length, some- 

 times ovate-oblong.) . 

 Plants southern (October). 8. S. parvijlora. 

 Plants northern and western (Summer). 



Lip orbicular at the base, strongly dilated at the apex, calli minute. 



9. S. Romanzoffiana. ^ 

 Lip obloug at the base, slightly dilated at the apex, calli prominent. 



10. S. porrifolia. 

 Lip not conspicuously constricted, or only rarely so. 



Lip quadrate, yellow (June and July). 11. S. latifolia. ' 



Lip ovate-oblong. 



Leaves mostly radical, the lowermost longest. 12. S. cernua. ^' 



Leaves extending up the stem. 13. S. odorata. - 



1. SPIRANTHES BECKII, LindL, Orch. PI. 472 (1840) 

 (exclude synonyms). — S. simplex, Gray, Manual, ed. 5, 506 

 (1867), not Grisebach. — ;S'. Grayi, Ames in Rhodora 6 : 44 

 (1904). — Gyrostachys simplex, Kuntze, Rev. Gen. PI., part II., 

 664 (1891). Specimens of Drummond's no. 332, collected at New 

 Orleans, on which Lindley based his description of S. Beckii, may 

 be found in the Gray Herbarium and in the Herbarium of the 

 Boston Society of Natural History. This species has been reported 

 from Fairfax Co., Va., by William Palmer (Proc. Biol. Soc. Wash. 

 17 : 165, 1904). 



Massachusetts, Norfolk Co.: Holbrook, September 12, 1900, Arthur 

 Clark. Bristol Co. : Easton, September 2, 1903, A. A. Eaton; Short 

 St., September 10, 1903, A. A. Eaton. Plymouth Co. : Gray Gables, 

 August 28, 1895. Barnstable Co. : Dry fields, Barnstable, Septem- 

 ber 5, 1898, J. M. Greenman (no. 365). — Centreville, September 9, 

 1874. — Truro, September 5, 1891, W. Faxon. Nantucket Co. : Nan- 

 tucket, August 20, 1865, J. W. Rohhins ; moors, September 9, 1885, 

 Walter Deane ; August 13, 1880, Mrs. M. L. Omen; Squam, August 

 21, 1896, Jl/. L. Owen; dry meadows, August 22, 1897, F. N. Vasey ; 

 September 5, 1871, Wm. Boott. 



Rhode Island : South Kingston, 1874, J. W. Congdon. 



Connecticut, New London Co. : Dry open sandy fields near shore in short 

 grass. Crescent, August 28, 1903, R. G. Leavitt. Middlesex Co. : Old 

 Saybrook, September 9, 1904, C. H. Bissell. New Haven Co. : Oxford, 



