ORCHIDACEiE 



H. clavellata Fl. Lane. Co. (1895), 15 {ISm); Russell, in Rho. 1 : 200 (1899); 

 Kearney, in Bail. Cycl. Am. Hort. 2: 707 (1900); Brai7ierd, 

 Jones (§ Eggleston, Fl. Vt. 30 {IQ0Q)\ Mathews, Field-book 84, 

 85, 90 (1902). 



Gymnadenia tridentata LindL, Gen. & Sp. Orch. 277 (1835) ; 

 Hook., Fl. Bor. Am. 2: 195 (1840); Steud., Nomencl. ed. 2, 1: 

 712 (1841); Torr., Fl. N. Y. 2: 273 (1843); Gray, Man. ed. 1, 

 469 (1848), ed. 2, 444 (1856), ed. 3, 444 (1859) ; DarL, Fl. Cestr. 

 ed. 3, 310 (1853) ; Green c^ Congd., Class-book 202 (1855) ; Beck, 

 Bot. ed. 2, 346 (1856); Tatnall, Cat. PI. Newc. Co. Del. 74 

 (1860); Chapm., Fl. S. U. S. ed. 1, 459 (1860), ed. 2, 459 (1884), 

 ed. 3, 485 (1897) ; Hervey, Cat. 21 (1860) ; Wood, Class-book 683 

 (1861); Tracy, Essex Fl. 80 (1892); Correvon, Orch. Rust. 94 

 (1893). 



Platanthera tipuloides Hook., Fl. Bor. Am. 2: 195 (1839) 

 in syn.^ 



Orchis tipuloides Hook., Fl. Bor. Am. 2: 195 (1839) in syn., 

 not Fischer in hb. 



Gymnadenia tridentata /3 clavellata Wood, Class-book 

 683 (1861). 



Peristylus clavellatus KrdnzL, Orch. Gen. et Sp. 1: 521 

 (1898), 926 (1901). 



Gymnadeniopsis clavellata Rydb., in Britton's Man. 293 

 (1901); Small, Fl. Se. U. S. 316 (1903), in Porter's Fl. Pa. 92 

 (1903); Lighthipe, in Torreya 3: 80 (1903); House, in Torreya 

 3: 51 (1903) ; C. B. Robinson, in Bull. Pictou Acad. 1 : 35 (1907). 

 (See Habenaria lacera x clavellata, Niles, Bog- trotting for 

 Orchids, 257, sub H. lacera.) 



1 Hooker {Fl. Bor. Am. 2: 195) makes Platanthera tipuloides Lindl., Orchis tipuloides L., 

 O. gracilis Fisch. = Gymnadenia tridentata, basing his opinion on a fragment of Fischer's 

 distribution in his herbarium. MacMillan and Macoun follow him, but I think he must be 

 entirely mistaken, a view apparently held at Kew, for Index Kewensis makes PL tipuloides 

 = TipuIaria Kamtschatica. (A. A. E.) 



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