310 82. ORCHIDACER. 
Peristylus Lindl.—Lip with 3 tubercles at its base, 1 central, 2 
lateral. Stigma oblong, slightly emarginate above. Glands of 
the pollen-masses connected by an elevated transverse line. Sep. 
and pet. connivent. Root-knobs palmate. Fl. green, lip browner. 
St. 6—8 in. high.—Pastures. P. VI. VIL. Frog Orchis. 
** Spur slender, PLATANTHERA Rich. 
2. H. bifolia (R. Br.) ; spur twice as long as the germen, lip 
linear entire, pet. connivent obtuse, anth. oblong truncate ts cells 
porallel.—E.B. S. 2806. R. I. f. 1143.—About a foot high. Root- 
1. usually 2, elliptical. Stem-l. small, lanceolate, resembling the 
bracts. Spike slender. Fl. white. Central line between the 
cells of the anther a furrow in front and a keel behind. Stigma 
truncate, emarginate with pointed lobes.—Heathy places. P. 
VI. VII. Lesser Butterfly Orchis. 
3. H. chlorantha (Bab.); spur twice as long as the germen, 
lip linear entire, pet. connivent obtuse, anth. truncate its cells 
twice as distant at the base as at the top—Orchis bifolia Sm., 
E.B.22, R.I.f. 1145.— Usually taller and stouter than the pre- 
ceding. Spike usually lax but sometimes dense. FI. larger. 
Central line between the cells of the anther a prominent ridge in 
front and a groove behind. Stigma very broad, slightly pomted 
in the middle.—Moist woods and thickets. P.V. VI. Great 
Butterfly Orchis. 
5. Orurys Linn. 
1. O. apifera (Huds.) ; lip tumid 5-lobed, 2 lower lobes pro- 
minent and with a hairy base, 2 intermediate reflexed truncate, 
terminal acute elongated reflexed, anth. with a hooked point, pet. 
oblong bluntish downy.—£. B. 383. R. 1. f. 1159.—About a foot 
high. Fl. few, large, rather distant. Sep. whitish, tinged with 
purple. Lip velvety, brown variegated with yellow. “ All the 
lobes of the lip sometimes reflexed, intermediate overlapping the 
terminal one.”—On calcareous soils. P. VI. VII. Bee Orchis. 
E. IL. 
2. O. arachnites (Reichard) ; lip somewhat tumid entire or with 
4 shallow inflexed marginal lobes and a terminal inflexed flat 
rather heartshaped appendage, anth. with a straight or hooked 
point, pet. deltoid downy.—E. B.S. 2596. O. fuciflora R. I. 
f. 1162—1165.—Sep. pinkish. Lip velvety, dark purple, varie- 
gated with yellow; appendage green, never reflexed.—Chalk 
downs near Folkestone and Sittingbourne, Kent. P. IV.—VI. 
Late Spider Orchis. E. 
3. O. aranifera (Huds.); lip tumid obscurely 3-lobed, middle 
lobe large emarginate without an appendage, auth. acute, pet. linear 
