ORCHIDACE^ 



H. hyper- Platanthera hyperborea var. major and var. minor 

 borea Lange, Consp. Fl. Groenl. 118 (1880). 



Limnorchis hyperborea Rydb., in Mem. N. Y. Bot. Gard. 1 : 

 104 (1900), in Britton's Man. 294 (1901), in Bull. Torr. Bot. CI. 

 28 : 620 (1901) ; House, in Torreya 3 : 51 (1903) ; Small, in Porter's 

 Fl. Pa. 93 (1903). — L. media Rydb., in Britton's Man. 294 

 (1901) in part, in Bull. Torr. Bot. CI. 28: 618 (1901) in part.— 

 L. huronensis Rydb., in Britton's Man. 294 (1901), in Bull. 

 Torr. Bot. CI. 28 : 619 {I'dQl); House, in Torreya 3: 51 (1903).— 

 L. brachypetala Rydb., in Bull. N.Y. Bot. Gard. 2: 161 (1901), 

 in Bull. Torr. Bot. CI. 28: 616 (1901) in ^art {Tar leton no. 116). 

 — L. viridiflora Rydb., in Bull. Torr. Bot. CI. 28: 616 (1901); 

 Piper, Fl. Wash, in Contr. Nat. Herb. 11 : 210 (1906); Farr, in 

 Contr. Bot. Lab. Univ. Pa. 3: 28 (1907).— L. major Rydb., in 

 Bull. Torr. Bot. CI. 28: 617 (1901). 



*'33. ORCHIS bulbis fasciculatis, nectarii cornu longitudine 

 germinis: labio lineari integerrimo truncato. Kbnig. 



^^ Habitat in Islandia. Konig. 



"Caulis palmaiis cum spica. Folia alterna, lanceolata, longi- 

 tudine caulis. Spica ovata: Bracteis lineari-lanceolatis, longitu- 

 dinejlorum. Corollas viridi-lutescentes : Petaluvi supremum latius, 

 ovatuvi; Lateralia 2 superiora lanceolata, ad primum conniven- 

 tia; Lateralia 2 inferiora oblonga. Labium vix petalo longius." 

 L. Mant. loc. cit. 



I have been obliged, as in my treatment of H. dilatata, to re- 

 duce several of Dr. Rydberg's species, as they are founded rather 

 on geographic and inconstant distinctions than on real differ- 

 ences. 



In Habe7iaria hyperborea we have, from every viewpoint, a 

 perplexing species which presents many problems. The most 

 difficult point to settle is the amount of variation we are to allow 



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