GYNANDRIA— MONANDRIA. Orchis. 9 



* Knobs of the root roujidish^ undivided, 



1. O. hifolia. Butterfly Orchis. 



Knobs of the root oval, taper-pointed. Lip of the nectary 

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

 spur. Lateral calyx-leaves spreading downwards. 



O. bifolia. Linn. Sp. PL \33]. Willd. v.4.\0. Fl.Br.9\8. Engl. 



Bot. vA.t. 22. Curt. Lond.fasc. 6. t. (Jb. Dicks. H. Sice. fuse. 



3. 16. 

 O. n. 1285. Hcdl. Hist. v. 2. 146. ^.35./. 2. 

 O. bifolia altera. Bauh. Pin. 82. Rudb. Elys. v. 2. 197./. 2; bad. 

 O. hermaphroditica bifolia. Bank. Hist. v. 2. 772. f. Raii Sijn. 380. 

 O. hermaphroditica ; also Testiculus psycodes. Ger. Em.2\ 1 ./,/. 

 O. serapias primus. Dod. Pempt. 237./. Dalech. Hist. 1554./. 

 Satyrion trifolium. Fuchs.Hist.7\0.f. Jc. 408./. 

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

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

 Testiculus vulpinus. Best. Hurt. Eyst.vern. ord.7 . t. 6./ J. 

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



// 

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



/3. Orchis bifolia. Fl. Dan. t. 235. 



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



380. Rudb. Elys. v. 2. 198./ 3. Faill. Par. 151. ^ 30./ 7. 



Segu. Veron. v.2. 128. t. \b.f. 10. 

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

 O, flore albo minor. Best. Hort. Eyst. ccst. ord.4. t. 5.f. 4. 



In groves and thickets 3 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 briglit shining unspotted green j 

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

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

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

 numerous, in a rather loose sj)ike, pure wliite, except a greenish 

 tinge on the ///> and spur. The latter is ratlier tumid towards 

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

 straiglit. (.'ells of t)ie anllier widely separated, by the semicir- 

 cular abru))t termination of the style. PollcH'masscs 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 pollru being si'j)aratiMl. and naked, 

 or destitute of any cell or jjouch, aHord \\\v distinctive character 



