92 ENGLISH BOTANT. 



the sepals and lateral petals at first deep purplish-rose colour, after- 

 wards rose; labellum bituberculate at the base, deeply 3-lobed, the 

 lobes nearly equal, oblong, entu'c or crenulated at the apex, paler rose 

 than the rest of the flower; spur filiform, acute, nearly as long as the 

 ovary. 



On downs, banks, and borders of fields on chalky and limestone 

 soils; more rarely in loose sand. Very common in all the chalk and 

 limestone districts in England. Very rare in Scotland, where it has 

 occurred in loose sand near the ]\Iull of Galloway, and at Largo in 

 Fifeshire, and also in the Isle of Colonsay. Local and rather rare 

 in Ireland, but occurring in ten out of the twelve districts into which 

 the authors of the " Cybele Hibernica " have divided the island. 



England, Scotland, Ireland. Perennial. Summer. 



Rootknobs from the size of a large black currant to that of a damson 

 plum. Stem slender, 8 inches to 2 feet 6 inches high. Leaves mostly 

 radical, 3 to 6 inches long, resembling those of Gymnadenia conopsea. 

 Flowering-spike 1 to 2 mches long. Sepals and lateral petals about 

 1 inch long; labelliun slightly exceeding them. Spur about i inch 

 long, very slender. 



Pyramidal Orchis. 

 Frencli, Orchis pyramidal. German, Pyramidenformige Hundswurz. 



Sub-Genus III.— EU-ORCHIS. 



Labellum with the middle lobe not undulated, erect and not coiled 

 in Eestivation ; spur short or long. Pollen-masses each attached to a 

 separate gland ; the two glands contained in a common pouch. 



Section I.— HERORCHIS. Beich.fil 

 Sepals and lateral petals connivent, forming a helmet. 



SPECIES m.— ORCHIS USTULATA. Linn. 



Plate MCCCCL. 



ReicJi. Ic. n. Germ, et Helv. Vol. XIII. Tab. CCCLXVIII. 

 Billot, Fl. Gall, et Germ. Exsicc. No. 855. 



Rootknobs undivided, ovate- or oblong-ovoid. Leaves oblong-ellip- 

 tical, acute. Flowers in a dense oblong spike. Bracts from half as 

 long as the ovary to as long, scarious, 1 -nerved. Sepals and lateral petals 



