121 



putting- the species again into the subgenus Aplectniui. Appar- 

 ently the first use of A plectrum as a generic name was by Torrey 

 in 1826, although two years earh'er Rafinesque had used it in the 

 sh'ghtly altered form Aplcctra — neither Torrey nor Rafinesque 

 making any reference to Nuttall. The binomial " Aplcctruui 

 Jiicmalc Nutt." had, indeed, been cited as a synon)'m by Eaton 

 in 1822 (Man. ed. 3. 250), but it does not seem to have been 

 adopted formally in any publication until 1826. 



The synonymy of the two genera, as cleared up by the fore- 

 going discussion, is as follows : 



HEXALECTRIS Raf. Neog. 4. 1825. 



Hexalectris spicata (Walt.). 



Arethusa spicataV^dXt. Fl. Carol. 222. 1788. 



Blctia aphylla Nutt. Gen. 2 : 194. 181 8. 



Hexalectris squamosa Raf. Fl. Tell. 4: 48. 1836. 



Hexalectris aphyllus Raf. ; Gray, Man. ed. 6, 501. 1890. 

 Hex.-^lectris Mexic.wa Greenm. Proc. Am. Acad. 39 : yj. 



1903. 



APLECTRUM (Nutt.) Torn Compend. 316, 322. 1826. 

 CoKALLORHiz.A. subg. ApLECTRUM Nutt. Gen. 2 : 



197. I8I8. 



Aplectrum hvemale (Muhl.) Torr. Compend. 322. 1826. 

 Cymbidium hyemale Muhl. in Willd. Sp. PL 4: 107. 1805. 

 Corallorhiza hienialis '^mW.. Gen. 2: 198. 18 18. 

 • Aplectra clatior '^dX. Cat. Bot. Gard. Transylv. 13. 1824. 

 Aplectrum spicatum B.S.P. Prel. Cat. N. Y. 51. 1888; not 

 Arethusa spicata Walt. 



Aplectrum hyemale pallidum (House). 



Aplectrum spicatum pallidum House, Torreya, 3: 54. 1903. 

 Aplectrum Shortii Rydb. in Britton, Man. 305. 190 1. 



