ORCHIDACER. 119 
slightly twisted spike. Labellum saccate at the base, with an ovate 
recurved point. Anther short, blunt. Beak of the stigma very short. 
In fir-woods. Abundant in the north of Scotland, especially towards 
the east. The southernmost station is at Dalmeny, six miles from 
Edinburgh, where it was discovered by Mr. Claudio L. Serra. The 
next most southern stations are the Den of Dupplin and the woods of 
Scone, Perthshire: it is also reported from Forfarshire. In Kincardine, 
Aberdeen, Banff, and Moray it is abundant, extending into Ross and 
Inverness, which appear to be its northern limits. 
Scotland. Perennial. Late Summer, early Autumn. 
Nootstock slender, fleshy, creeping extensively among the rotting 
leaves of the Scotch fir. Leaves appearing at the close of autumn and 
remaining until the flowers fade in the autumn of the succeeding 
year, 1 to 1} inch long, gradually attenuated into petioles shorter 
than the lamina, dark green, without any markings, somewhat fleshy. 
Flowering stem 6 to 15 inches high, a few of the lowest leaves re- 
sembling ‘the radical ones, the rest sheathing and bractlike. Spike 
1} to 5 inches long, with numerous flowers turned to one side, and 
slightly spiral. Bracts rather longer than the ovaries which they 
embrace, acuminate or acuminate- -cuspidate, subherbaceous. Perianth 
seginents about 4 inch long, cream-white, all connivent; the sepals 
ovate, the lateral ones oblique; the labellum with an inflated saccate 
protuberance in the lower half. Rachis, bracts, ovary, and perianth 
elandular-pubescent, with jointed hairs. 
Creeping Ladies’ Tresses. 
French, Goodyére rampante. German, Kriechende Goodyere. 
GENUS X.—_LISTERA. BR. Brown. 
Perianth subherbaceous; segments spreading, or the 5 upper ones 
connivent, free; labellum turned downwards, not spurred, nearly flat, 
pendulous, bifid at the apex, and sometimes toothed at the base, not 
contracted in the middle. Column short or very short. Rostellum 
elongated, entire, with a small round appendage at the apex. Anther 
sessile, ied to the rostellum; pollen-masses clavate, attached to a 
minute common gland ; pollen mealy. 
Herbs with slender fasciculated root-fibres. Stems commonly with 
a pair of opposite or subopposite leaves some distance above the 
base, below which the stem has merely a few sheaths at the base. 
Flowers small, minute, greenish, pointing in all directious, in a rather 
lax raceme. 
The name of this genus of plants was given to it in honour of Dr. Martin Lister. 
