GYNANDRIA— MONANDRIA. Orchis. 9 



* Knobs of the root roundish, undivided. 



1. O. bifoUa. Butterfly Orchis. 



Knobs of the root ovai, tapei'-pointed. Lip of the nectary 

 lanceolate, entire, about half the length of its very long 

 spur. Lateral calyx-leaves spreading downwards. 



O. bifolia. iinn. % PZ. 1 33 ) . Willd.v.AAO. Fl.Br.9\8. Engl. 



Bot. v.\. t, 22, Curt. Lond.fasc. 6. t. 65. Dicks. H. Sicc.fasc. 



3. 16. 

 O. n. 1285. Hall. Hist. v. 2. 146. t.35.f. 2. 

 O. bifolia altera. Bauh. Pin. 82. Rudb. Elys. v. 2. 1 97./. 2; bad. 

 O. herraaphroditica bifolia. Bauh. Hist. v. 2. 772. f. Raii Syn. 380. 

 O. hermaphroditica J also Testiculus psycodes. Ger. Em.2ll.f,f. 

 O. serapias primus. Dod.Pempt.237.f. Dalech. Hist, 1554. f. 

 Satyrion trifolium. Fuchs. Hist. 710. f. Ic. 408./. 

 Testiculi species tertia. Matth. Falgr. v. 2. 333./. 2. 

 T. species quinta. Camer. Epit. 625./. 

 Testiculus vulpinus. Besl. Hort. Eyst. vern. ord. 7 . t. 6./.]. 

 T. vulpinus primus j also Hermaphroditica secunda. Lob. Ic. 178. 



Habenaria bifolia. Br. in Ait. Hort. Kew. v. 5. 1 93. Hook, Scot. 252. 



j3. Orchis bifolia. Fl. Dan. t. 235. 



O. alba bifolia minor, calcari oblongo. Bauh. Pin. 83. Raii Syn. 



380. Rudb. Elys. v. 2. 198./ 3. ^'aill. Par. ]5\. t. 30./ 7. 



Segu. Veron. v.2. 128. t. 15./ 10. 

 O. alba^, calcari longo. Bauh. Hist. v. 2. 77 1 ./. 

 O. flore albo minor. Besl. Hort. Eyst. ast. ord. 4. t. 5./ 4. 



In groves and thickets j most plentiful in Beech woods. 



/3. On open heaths. 



Perennial. June. 



Knobs of the root each tapering into a fibrous point. Stem angu- 

 lar, about a foot high, often more. Leaves usually two, spread- 

 ing, elliptical, 3 inches long, of a bright shining unspotted green ; 

 very rarely accompanied by a third, smaller and more upright. 

 Bracteas lanceolate, about as long as the germen, one to each 

 flower, besides a few larger, scattered along the stem. Flowers 

 numerous, in a rather loose spike, pure white, except a greenish 

 tinge on the lip and spur. The latter is rather tumid towards 

 the end. Lip linear-oblong, about the size of the calyx-leaves, 

 straight. Cells of the anther widely separated, by the semicir- 

 cular abrupt termination of the style. Pollen-masses yellow, 

 club-shaped, erect, each attaching itself to a gland-like naked 

 tubercle, at each side of the centre of the flower^ but sticking 

 likewise to various parts of the plant occasionally. 



The glands which receive the pollen being separated, and naked, 

 or destitute of any cell or pouch, afford the distinctive character 



