18 GYNANDRIA— MONANDRIA. Orchis. 



In pastures and bushy places on a chalky soil, but very rare. 



Near Dartford, and in other parts of Kent. Hay, Hooker. On 

 Box hill Surrey. Mr. Graves. At the bottom of Clifton hill 

 in April and the beginning of May ; also in Colwick wood, 

 Nottinghamshire. Deering. In very shady situations among 

 shrubs, about the beginning of August, in the barony of TuUagh, 

 county of Clare, Ireland. Wade PL Ear. Hibern. 65. The late 

 Mr. Lewin pointed out this Orchis to me, at Darent, 2 miles 

 from Dartford, in July 179 1. The very early period of flowering, 

 mentioned by Deering, renders his plant doubtful. 



Perennial. July. 



One of the finest of its tribe. I have counted above 60 flowers 

 in one spike. The knobs of the root are almost globular, and 

 very large. Stem from 2 to 3 feet high, hollow, leafy. Leaves 

 light green, slightly glaucous, erect, elliptic-lanceolate, acute, 

 varying in breadth. Spike rather lax, upright. Bracteas linear- 

 lanceolate, acute, often longer than the flowers including their 

 lip. Ft. from 20 to about 60, strongly, not pleasantly, scented, 

 dull in colour, but curious and singular in appearance. Cat. 

 converging over the petals, its leaves ovate, concave, obtuse j 

 green, spotted with dull purple internally. Pet. of the same 

 colours, narrow, linear. Lip in 3 linear, curved, purplish lead- 

 coloured segments j the lateral ones hardly extending beyond 

 the calyx ; middle one four times as long, variously twisted 5 

 notched or jagged at the end 3 disk pale, or white, downy, spot- 

 ted with purple. Spur short and tumid, whence Linnaeus was 

 led to refer this plant to his very artificial genus Satyrium, 

 though it naturally follows our four preceding species of Orchis, 

 to each of which it has some mark of affinity. In all of them 

 the spur is more or less tumid, and slightly cloven, at the point. 



Mr. Graves is recorded by Dr. Hooker as having sometimes found 

 a flower with a double lip, as in the foregoing, and once a double 

 spike of blossoms. 



** Knobs of the root taper mg^ clustered, 



10. O. albida. White Cluster-rooted Orchis. 



Knobs tapering, clustered, undivided. Lip of the nectary 



in three deep acute lobes ; the middle one largest; spur 



one-third the length of the germen. 

 O. albida. Swartz Orch. 20. Willd. v.A.SS. Comp. ed. 4. 143. 



Wahleyib. Lapp. 21 6. 

 O. n. 1270. Hall. Hist. V. 2. 137. t.26.f. 1. 

 O. pusilla alba odorata, radice palma'.i. RaiiSyn. 381. 

 Pseudo-orchis alpina, flore herbaceo. Mich. Gen. 30. t. 26. f. A, B, C. 



Segu. Veron. suppl. 254. 

 Satyrium albidum. Linn. Sp. PI. 1 338. Fl. Br. 929. Engl Bot. 



