1122 LISTERA. [CLASS XX. ORDER I. 
Babington in Hooker British Flora, ed. 4. vol. i. p. 318. 
This is distinguished from the last species by the stem bearing 
several linear lanceolate leaves, and the radical leaves are lanceolate, 
or oblong lanceolate. In other respects they are the same, except 
that the lip in S. estivalis is always entire, while in S. autumnalis it 
is often notched. 
Habitat.—“ Marshy land by St. Owen’s Pond, Jersey.” “Bog be- 
tween Lyndhurst and Christchurch, in the New Forest.”— Babington. 
Perennial; flowering in July and August. 
Native specimens of this plant we have not seen. It is not unfre- 
quent in various parts of the Continent. 
3. S. gemmip'ara, Lind. Proliferous Lady's Tresses. “ Leaves 
lanceolate, as tall as the stalk; spike three ranked, twisted; bractea 
smooth.’—Smith. 
English Flora, vol. iv. p. 37.—English Botany, Supp. t. 2786.— 
“ bad.”—Hooker, British Flora, ed. 4. vol. i. p. 318.—Neottia.— 
Lindley, Synopsis, p. 257. 
Habitat—Dunbog, Bear Haven, Ireland.—Mr. J. Drummond. 
Perennial ; flowering in July. 
“ Nothing satisfactory is known of this.” Since this remark of 
Hooker's was made, the plant has again been found in Ireland; but 
we have not seen it, or any good drawing of the plant. 
GENUS X. LISTE'RA—Brown. Twayblade. 
Nat. Ord. Orcuip'Ex. Juss. 
Gen. Cuar. Sepals and petals herbaceous, conniyent. Lip two 
lobed, depeadent, not spurred. Column taper, erect, much 
shorter than the stigma. Stigma plane, ovate. Anthers covered 
by the hood, proceeding from the back of the column. Pollen 
farinaceous.—Named in honour of Dr. Martin Lister, an eminent 
British naturalist. 
1. L. ova'ta, Br. (Fig. 1246.) Common Twayblade. Stem with two 
opposite ovate elliptical leaves ; lip deeply cut into two linear lobes. 
English Flora, vol. iv. p. 38.—Hooker, British Flora, ed. 4. vol. i. 
p- 318.—Lindley, Synopsis p. 258.—Ophrys, Linn.—English Botany, 
t. 1548. 
Root of numerous long branched fibres. Stem erect, from one to 
two feet high, slender, simple, downy above, clothed at the root with 
membranous sheaths, and bearing about one-third up a pair of oppo- 
site ovate or elliptic ovate leaves, each with several parallel ribs. 
Inflorescence a long slender terminal spike of numerous pale green 
