150 LISTEREZ. 
TRIBE IV.—LISTEREA. 
Anther terminal (dorsal in Ерёрасйз), pollinia 2 or 4, cohering by their sides, with- 
cut candicles (except in Zpipogum), pollen powdery. 
Anther terminal. 
Pollinia 2, with caudieles, lip spurred а 
Pollinia 2 or 4, without caudicles, lip not spurred. 
Lip flat, pendulous (except in Listera mieroglotiis), 
sepals and petals free, leaves 2 or none а 
Lip concave ог convolute, not pendulous, sepals 
united or free. 
Leafless saprophytes or parasites with brown 
or yellowish stems. 
Sepals and petals united into a ventricose 
tube vee 
Sepals and petals free. 
Stem simple, flowers in terminal 
racemes ive ... .اڈ‎ Aphyllorchis. 
Stem branched, flowers іп 
panicles, bright yellow ... 32. Galeola. 
Not saprophytic or parasitic, stems and 
leaves green. 
Leaf solitary, radical, appearing after 
28. Еріродит. 
20.  Listera. 
دن 
>< 
+ 
Gastrodia, 
the flowers, pollinia 2 or 4 « 33. Pogonia. 
Leaves several; pollinia 4, in pairs .. 34. Cephalanthera. 
Anther dorsal, pollinia 4, in pairs i "un ... 96. Epipactis, 
28. Epipogum Gmelin. 
Terrestrial leafless brown-coloured saprophytes with tuberous or coralloid roots. 
Scape erect, bearing a few sheathing membranous bracts. Flowers few, laxly racemose. 
Sepals and petals subequal, free, narrowly oblong, erect or connivent. Lip adnate to the 
base of the column, ovate, entire or 3-lobed, the base broad and spurred, disk with 
pspilose ridges. Column short, without a foot. Stigma broad, prominent. Anther thick- 
ened, convex, 2-celled; pollinia 2, broad, bifid, each attached to a short rudimentary 
caudicle, gland none. Species 3, all found in India. 
Root coralloid, lip 3-lobed 
1. Е. aphylium. 
Root tuberous, lip entire PH 
254 NS ... 9. E. tuberosum. 
1. Е. APHYLLUM Swartz Sumn. Veg. Scand. 32, 
Whole plant 1 to 2 dm. high, glabrous. Root branching, coralloid. Seape stout 
often swollen above the base, bearing two or three unequal sheathing bracts. Raceme 
9:5 еш. long, 3- to 6-flowered. Flowers about 2 em. across, pale yellow, floral bract longer 
than the stalked tumid ovary, concave, oblong-elliptic, membranons. Sepals and petals 
erect, connivent, narrowly cblong-laresolate, subacute. Zip large, 3-lobed; side lobes 
large, rounded, erose at the apex; terminal lobe deflexed, ovate, acute, concave, its upper 
surface with line of red gland-like warts. Spur as long as the lip, thick, blunt, dorsally 
