t 





'h- 



k\ 



^ea;, 



e 



If 



Htk 



i 



pilli 



ate, 

 i, 



:tl. 



be 





iVed^/m.] LXXXIX. ORCIIIDACE^. 429 



5. LisTERA J5r. Bird's-nest or Tvvay blade 



Lip 2-lobed at the apex. Column wingless. Anther fixed 

 by its base. Pollen farinaceous Br. — Named in honour of 

 Dr. Martin Lister, an eminent British naturalist. 



Ctj,, ' * Column very short. Stem with leaves. 



^ 1. L. ovdta Br. (common T.) ; stem with only 2 ovate-ellip- 



. tical opposite leaves, column of fructification with a crest in 

 f which the anther is placed. Ophrys L. : E. B. t. 1548. 



•'■^ Woods and moist pastures, frequent. %. 5—1.— Stem 1 foot 



high. Leaves striate. Floivers distant upon the spike, yellowish- 

 green. Outer sepals ovate ; two lateral inner ones linear-oblon"' • 

 lip long, bifid, without any teetli at the base. Bracteas very short. " ' 



^2. L. corddta Br. {Heart-leaved T.) ; stem with only 2 

 cordate opposite leaves, column without any crest, lip with a 

 tooth on each side at the base. Ophrys L. : E. B. t. 358. 



Sides of mountains in heathy spots, in the north of Endand and 



Scotland. 11 . 6—8. — Roots a few long fleshy fibres. Stems 3—5 



inches high. Flowers few, very small, spiked, greenish-brown. Sepals 



somewhat spreading, outer ones ovate, lateral inner ones linear-oblon<r 



^ up pendent, linear. °' 



** 



Column elongated. Stem with scales, without leaves. 



3. L. Nidus-A'vis Hook, {common B.) ; stem with sheathino- 

 scales leafless, column without any crest, lip linear-oblonfr with 

 2 spreadmg lobes, toothless at the base. Ophrys L.-EB 

 t.48. moitm L. : Rich. ^ ^ •• ^. ^. 



Shady woods in many parts of England and Scotland. 2JL 5 6' 



- iZoo^of many, short, thick, densely aggregated, fleshy fibres. Stem 

 I loot high. Flowers spiked, of a dingy brown. Outer and lateral 

 inner sepafe oblong-oval, nearly equal. Lobes of the lip spreading. 



— Ur. Lindiey has shown that this can scarcely be genericallv dis- 

 tingiushed from the group having leaves. It is the original Neottia 

 ot Uodomeus; Linnaeus in 1740 adopted the genus, uniting with it 

 J^i. cEstivalts, but afterwards removed it to Opiirys. The unemployed 



I name was then chosen by Jacquin, when he separated A^. aistivalis and 



i r iT""^ immediate allies: there cannot however be a doubt but that 



nad Jacquin's name not now been sanctioned by Swartz, Willdenow 



omith and Brown, the appellation ought to be given to Listera, or 

 to tliat which contains the Nidus-Avis, the only one having the 



neottious root. 



6. Keottia Jacq. Lady's Tresses. 



Perianth _ ringent : the 2 lateral outer sepals erect, placed 

 under and mcluding the base of the lip, oblique at the base and 



