120 ENGLISH BOTANY. 



SPECIES I.— LISTERA CORD ATA. E.Br. 



Plate MCCCCLXXVI. 



Bdcli. Tc. n. Germ, et Helv. Vol. XHI. Tab. CCCCLXXX. 



Billot, Fl. Gall, et Germ. Exsicc. No. 174. 



Neottia cordata, Eich. Belch, fil. 1. c. p. 149. 



Ophrys cordata, Linn. Sm. Engl. Bot. ed. i. No. 358. 



Root-fibres few. Stem slender, fragile. Leaves 2, subopposite, 

 sessile, deltoid-ovate or rhombic-deltoid, obtuse-angled or subcordate 

 at the base. Flowers in a rather short lax raceme. Sepals and lateral 

 petals spreading, the former strapshaped-oblong ; labcUum twice as 

 long as the sepals, 3-lobed from the base ; the lateral lobes linear- 

 strapshapcd ; the middle lobe broader and more than twice as long as 

 the lateral lobes, cleft at the apex about half-way up into 2 linear- 

 strapshaped segments, which are longer than the lateral lobes. Column 

 with a crest in which the anther is included. 



In damp places on heaths and open woods. Generally distributed, 

 but very scarce in the south of England. Not uncommon in the north 

 and in Scotland, extending north to Orkney. Local, but widely dis- 

 tributed in Ireland, except in the south and middle of the island. 



England, Scotland, Ireland. Perennial. Summer, Autumn. 



Rootstock very slender, creeping, emitting slender brittle fleshy 

 radical fibres. Stem 2 to 9 inches high, with 2 or 3 membranous 

 sheaths at the base, and 2 leaves about the middle or below it ; one of 

 these leaves sheathes the other, but so closely that tliey appear to be 

 opposite. Leaves from 4^ to 1 inch long, deep shining green above, 

 paler beneath, somewhat fleshy ; rarely there are 3 or even 4 leaves all 

 close together. Spike |^ to 2|^ inches long. Bracts much shorter than the 

 pedicels, deltoid, yellowish-green. Perianth segments ^'fj inch long ; 

 the labelliim about -^ inch long ; the whole yellowish-olive tinged 

 with purplish-brown or dull reddish-purple. Rachis and pedicels 

 glabrous. 



Lesser Tway Blade. 



French, Neottte en coeur. German, Herzhliittriges Zweihlatt, 



SPECIES II.— LI S T E R A O V A T A. KBr. 



Plate MCCCCLXXVII. 



Reich. Ic. Fl. Germ, et Helv. Vol. XIII. Tab. CCCCLXXIX. 



Billoi, Fl. Gall, et Germ. Exsicc. 



Neottia ovata, " Bhiff et Finyerlmth." Eeich.Jil. I.e. -p. 14:7. Crep. Man. Fl, Belg. 



ed. ii. p. 296. 

 Ophrys ovata, Linn. Sm. Eng. Bot. ed. i. No. 1548. 



Root-fibres numerous. Stem rather stout, not fragile. Leaves 2, 



